TM-318 / 020674 / OPERATION AND MAINTENANCE MANUAL ... · SAFETY INSTRUCTIONS AND WARNINGS FOR...

:.

:

TM-318 /

020674 /

OPERATION AND MAINTENANCE MANUAL

with

ILLUSTRATED PARTS LIST

for

HOBART 400 HZ AC GENERATOR

Synchronous Motor Driven

with

Static Voltages Regulator

Manufactured by

MOTOR GENERATOR DIVISION

HOBART BROTHERS COMPANY I

TROY, OHIO 45373

r

SAFETY INSTRUCTIONS AND WARNINGS FOR ELECTRICAL POWER EQUIPMENT

ELECTRIC SHOCK can kill. Do not touch live electrical parts.

FUMES AftID GASES can be fire and health hazards. Ventilate all fumes and exhaust gases to the outside.

ELECTRIC ARC FLASH can injure eyes, burn skin, cause equipment damage, and ignite combustible material. Do not use power cables to break load and be sure tools don’t cause short circuits.

IMPROPER PHASE CONNECTION, PARALLELING, OR USE can damage this and attached equipment.

MOVING PARTS can cause serious injury. Keep clear of moving parts.

IMPORTANT - Protect yourself and others. Read and understand all the instructions in this Operating/Instruction Manual before installing, operating, or servicing this equipment. Keep this manual available for future use by all operators.

A. GENERAL Equipment that supplies electrical power can cause serious injury or death, or damage to other equipment or

property, if the operator does not strictly observe all safety rules and take precautionary actions. Safe practices

have developed from past experience in the use of power source equipment. Certain of the practices below apply to

engine driven equipment.

B. SHOCK PREVENTION

Bare conductors, or terminals in the output circuit, or ungrounded, electrically-live equipment can fatally shock a

person. Have a competent electrician verify that the equipment is adequately grounded and learn what terminals and parts are electrically HOT. Use proper safety clothing, procedures, and test equipment.

The electrical resistance of the body is decreased when wet, thus more easily permitting dangerous currents to flow

through it. When inspecting or servicing equipment, do not work in damp areas without being extremely careful.

Stand on dry rubber mat or dry wood, use insulating gloves that are effective when dampness or sweat cannot be

avoided. Keep your clothing dry and never work alone.

1. Installation and Grounding of Electrically Powered Equipment - Electrical equipment must be installed and maintained in accordance with the National Electrical Code, ANSI/NFPA 70, and other applicable codes. A power disconnect switch or circuit breaker must be located at the equipment. Check the nameplate for voltage,

frequency, and phase requirements. If only 3-phase power is available, connect any single-phase rated equipment to only two wires of the 3-phase line. DO NOT CONNECT the equipment grounding conductor (lead) to the third live

wire of the 3-phase line, as this makes the equipment frame electrically HOT, which can cause a fatal shock. ---- --- ---

Be sure to connect the grounding lead, if supplied in a power line cable, to the grounded switch box or building ground. If not provided, use a separate grounding lead. Be certain that the current (amperage) capacity of the

grounding lead will be adequate for the worst fault current situation. Refer to the National Electrical Code ANSI/

NFPA 70 for details. Do not remove plug ground prongs. Use correct mating receptacles.

2. Output Cables and Terminals - Inspect cables often for damage to the insulation and the connectors. Replace

or repair cracked or worn cables immediately. Do not overload cables. Do not touch output terminal while equip-

ment is energized. I

Instruction 910082

Nov 16182 Revised

Page 1

C. FIRE AND EXPLOSION PREVENTION

Fire and explosion are caused by electrical short circuits, combustible material near engine exhaust piping, misuse

of batteries and fuel, or unsafe operating or fueling conditions.

1. Electrical Short Circuits and Overloads - Overloaded or shorted equipment can become hot enough to cause

fires either by self destruction or causing nearby combustibles to ignite. Provide primary input protection to re-

move short circuited or heavily overloaded equipment from the line.

2. Battery - Batteries may explode and/or give off flammable hydrogen gas. The acid and arcing from a ruptured

battery can cause fires and additional failures. When servicing, do not smoke, causing sparking, or use open flame

near the battery.

3. Encrine Fuel - Use only approved fuel container or fueling system. Fires and explosions can occur if the fuel

tank is not grounded prior to and during fuel transfer. Shut unit DOWN before removing fuel tank cap. Do not

completely fill tank. Heat from the equipment may cause fuel expansion overflow. Remove all spilled fuel immediately including any that penetrates the unit. After cleanup, open equipment doors and blow fumes away with compressed air.

D.

E.

F.

TOXIC FUME PREVENTION

Carbon Monoxide - Engine exhaust fumes can kill and cause health problems. Pipe or vent the exhaust fumes to a suitable exhaust duct or outdoors. Never locate engine exhausts near intake ducts or air conditioners.

BODILY INJURY PREVENTION Serious injury can result from contact with fans, belts, and pulleys inside the equipment. Shut DOWN equipment for inspection and routine maintenance. When equipment is in operation use extreme care in doing necessary

troubleshooting and adjustment.

MEDICAL AND FIRST AID TRFATMFNT

First aid facilities and a qualified first aid person should be available for each shift for immediate treatment of all

injury victims. Electric shock victims should be checked by a physician and taken to a hospital immediately if any abnormal signs are observed.

Call physician immediately. Seek additional assistance and use First Aid techniques recommended

by American Red Cross until medical help arrives.

IF BREATHING IS DIFFICULT, give oxygen, if available, and have victim lie down. FOR ELEC-

TRICAL SHOCK, turn off power. Remove victim; if not breathing, begin artificial respiration,

preferably mouth-to-mouth. If no detectable pulse, begin external heart massage. Call Emergency

Rescue Squad immediately.

G. EQUIPMENT PRECAUTIONARY LABELS

Inspect all precautionary labels on the equipment monthly. Order and replace all labels that cannot be easily read. I

1 1 3. Service and Maintenance - This equipment must be maintained in good electrical and mechanical condition

to avoid hazards stemming from disrepair. Report any equipment defect or safety hazard to your supervisor and discontinue use of the equipment until its safety has been assured. Repairs should be made by qualified personnel

only. Shut OFF all power at the disconnecting switch or line breaker before inspecting or servicing the equipment. Lock switch OPEN (or remove line fuses) so that power cannot be turned ON accidentally. Disconnect power to

equipment i I’ .

rt IS out of service. If troubleshooting must be done with the unit energized, have present another person trained in turning off the equipment and providing or calling for first aid.

EMERGENCY FIRST AID

Page 2 Instruction 910082 Revised Nov 16182

FORART

B $MOTOR GENERATOR DIVISION a “c

QD ! HOBART BROTHERS COMPANY

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TABLE OF CONTENTS

SUBJECT CHAPTER/SECTION PAGE

Introduction

Description/Operation

Description

General

Identification

Standard Unit and Variations

Canopy

Motor

Generator

Hobart Static Regulator

Data

Performance

Dimensions

Control Box Assembly

General

Controls and Instruments

Interior Pane I Assembly

General

Controls and Instruments

Motor Switch Box Assembly

Genera I

Components

1-O

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Fe b 6/‘74 Contents

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TABLE OF CONTENTS (CONT’D)

SUBJECT

Power Module Assembly

General

Components

Preparation for Use

Genera I

Wiring

Motor Switch Overload Coils

Mounting Installation of Synchronous Motor-Driven

Generator Sets

Operation

Genera I

Remote Control

Variations

Servicing

Maintenance, Inspection/Check

Genera I

Inspection, Testing and Repair

Trouble Shooting

Trouble Shooting Procedures

General

Trouble Shooting Chart

Equipment for Trouble Shooting

Contents

Page 2

CHAPlER/SECTI,ON

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12

12

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1

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2

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1

2

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1

1

1

1

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SUBJECT CHA PTER/SECT ION PAGE

FOBART

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;MOTOR GENERATOR DIVISION

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3 HOBART BROTHERS COMPANY

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TABLE OF CONTENTS (CONT’D.)

Safety

’ Diagrams

Connections and Wiring

Chart

II lustrated Parts List

Introduction

Genera I

Purpose

Arrangement

Explanation of Parts List

Manufacturer ‘s Codes

Explanation of Manufacturer’s (Vendor) Code List

Parts List

Explanation of Parts List Arrangement

Symbols and Abbreviations

Feb 6/;74

May 12/75 Revised

3-l

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4-3

1

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3 thru 8

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Contents

Page 3

Con tents

Page 4

GENERATOR DIVISION HOBART BROTHERS COMPANY

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HOBART z J

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$MOTOR GENERATOR DIVISION : z HOBART BROTHERS COMPANY

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INTRODUCTION

This manual contains operation and service information and instructions for Hobart 400-Hz

Ground Power Generating hit, driven by a synchronous motor. Specification numbers

and model numbers for each model covered by this manual are listed below. See Data,

sub-seption 8, page 2, this Section, for complete details on various units.

Specs. 4576A (S-4576A) Mode I 32 1 O-50

Specs. 4713A (S-4713A) Model 3210

Specs. 4820A (S-4820A) Mode I 3209-50

Specs. 4910B (S-4910B) Model 3209

In addition to the standard unit,, the manual also covers variations to the basic specifications,

which are designated by a numerical suffix to the specification number, on the nameplate.

A sub-section entitled “Variations” in Chapter 1 explains these variations, and will include

any such new variations as they are added in the future.*

The manual is in no way presented as a text book on electricity or electronics. Its primary

purpose is to provide information and instructions to experienced operators, electricians

and mechanics who have never seen nor operated this particular generator set. It is the

intent of the manual to guide and assist operators and maintenance personnel in the proper

use and care of the equipment.

Use of the manual should not be put off until a trouble or need for help develops. Read the

instructions before starting the unit. Learn to use the manual and to locate information con-

tained in it. Each page is identified in the lower outside corner by the chapter and section

number in which it appears. Each new section starts with page 1. The figure numbers with-

in the’manual are numerically consecutive throughout the manual, regardless of the section

in which they appear.

In addition to operation and maintenance instructions, the manual containsan Illustrated

Parts List in Chapter 4. A collection of manufacturer’s I iterature is supplied as part of the

information package;

* From time-to-time, specialized use of this equipment may require the addition of

other appropriate instructions and parts lists (VARIATIONS) to the basic manual.

Individual pages that specifically describe ‘the variation are inserted at the front of this

manual as ADDENDUM SHEETS.

I

Introduction

Page 1

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gMOTOR GENERATOR DIVISION

i HOBART BROTHERS COMPANY “0

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CHAPTER 1. DESCRIPTION/OPERATION

SECTION 1. DESCRIPTION

1. The 400-Hz AC generator set is a self-contained motor generator set, complete with

all controls, instruments and protective devices necessary for manual or fully automatic

0 ration. I= It is designed to utilize standard line power (either 50 or 60 hertz) to

generate power for providing ground service to aircraft, requiring 400-Hz power.

The’ motor and generator rotors are mounted on a common shaft supported at the ends

by ball bearings. A centrifugal fan is mounted on the shaft between the motor and

generator rotors. In operation, the fan draws air in axial ly from the outer ends of the

housing, over the rotor and stator windings, and discharges it radially through a duct

at the center of the housing. The housing is of two-piece construction, bolted together

circumferentia-lly at the middle to facilitate removal when necessary for service or re-

pair of enclosed parts. The entire unit is mounted on a welded structural stee I frame.

2. Identification

A nameplate bearing SPECS, MODEL and SERIAL numbers of the unit is located

on or near the generator control pane I. Parts orders or inquiries regarding this

equipment must refer to these numbers. Direct all parts orders and correspondence

to:

MOTOR GENERATOR DIVISION

HOBART BROTHERS COMPANY

TROY , OH IO 45373

U.S.A.

3. Standard lktit and Variations

As stated above, the standard 400-Hz AC generator is a self-contained, stationary

unit identified by one of the specification (S) numbers listed in lntroductioni

Page 1. Variations to the standard models are identified by VAR. numbers. A

variation provides for motor switch 220-V input power on some models which are

380-volt standard, and a variation provides for mounting the unit on a trailer for

portable use. See the sub-section on VARIATION S, Section 1-3, page 2.

If other variations become available, or if changes are made, new information will

be added at the end of the sections in which the information would normally be located.

4. Canopy

A sheet metal enclosure, identified as a canopy, provides protection for the electric

motor, generator and electrical controls. It is equipped with two large (four panels)

hinged doors on each side to provide easy access for service and maintenance. Doors

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at each end of the canopy provide access to the motor switch box on the one end, and the

control box and power module box on the other end. See Figure 1 for location of these

items .

5. Motor

The drivel motor is 50 or 60 Hz synchronous motor. Field excitation is provided by a rotary

brush less exciter, and is set to provide approximate unity power factor on the input.

6. Generator

The generator is a 3-phase, 4000hertz, synchronous AC generator, or alternator, of the

rotating field type, having output terminals for connection to a 4-wire, grounded neutral,

external circuit. Fie Id excitation is provided by an automatically regulated brush less

rotary exe iter .

7. Hobart Static Regulator

The voltage regulator is designed to maintain the set voltage of the generator within f 1%.

See the regulator manual furnished with this equipment for detailed instructions on installation,

operation and maintenance.

8. Data

A. Performance

(2

Motor

Volts

Amperes

Hertz

Phase

Power Factor 1 .O

RPM 1500

HP 75

Generator

Volts 115/200

Amperes 173

KVA 60

Duty Cycle 100%

Power Factor 0.8

Mod. 32 1 O-50

(S-4576A)

380

94

50

3

Mod. 3210

(S-4713A)

230/460

154/77

60

3

1.0

1200

75

115/200

174

60

48

100%

0.8

400

3

1200

Mod. 3209-50

(S-4820A)

380

63

50

3

1.0

1500

50

115/200

108

37.5

30

100%

0.8

400

3 ’

1500

Mod. 3209

(S-4910B)

230/460

103/52

60

3

1.0

1200

50

115/200

108

37.5

30

100%

0.8

400

3 ’

1200

Fe b 6/74


B. Dimensions

Stationary Unit Trailer Mounted’Unit- (Var; -*)

(1) Length - overall 97 inches (2464 mm) 107 inches (2718 mm)

I Width 40 inches (1016 mm) 62 inches (1575 mm)

He ight - overal I 54 inches (1372 mm) 67 inches (1702 mm)

Weight

(2) Trailer (Var. *)

Tread 56 inches (1422 mm)

Whee I base 82-l/4 inches (2089 mm)

Ground clearance 5-l/2 inches (140 mm)

Tires 6.00x9

Tire pressure 60 PSI (4.22 kg/sq‘cm)

* See Section 1-3, page 2, para. 3.

9. Control Box Assembly

A. General

The Control Box (Figure 2) is a sheet metal enclosure which houses and provides

mounting facilities for generator controls and monitoring instruments. The box

is mounted above the power module box at the generator end of the machine.

Canopy doors open to gain access to the instrument panel on the front of the

control box. The instrument panel is hinged and may be swung down to provide

access to the interior panel (Figure 3) which is mounted inside the control box.

B. Controls and Instruments See Figure 2

(1) Generator ON/OFF Pushbuttons (16) - Operating these buttons applies

or removes the load from the unit. A pilot light, adjacent to the push-

buttons, glows GREEN when power is available at the output terminals.

(2) Motor START/STOP Pushbuttons (12) - Momentary contact switches for

operation of the motor starter. An amber pilot light (11) indicates when

the starter is closed.

(3) Meter Switches (14) - The meter selector switch, used in conjunction with

the associated line selector toggle switch (15), enables the operator to read

generator output voltage and amperage in each phase separately. Voltage

may be read between any two phases or between any phase and neutral.

Amperage may be read in phase A, B or C, as desired.

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400 Hz AC Generator with Canopy Closed

3 4 5 6 7

8

10

1. Motor switch box 6. Voltage regulator box

2. Synchronous motor 7. Control box

3. Drip-tight panel 8. Canopy

4. Access doors 9. Power module box

5. Generator 10. Frame

400 Hz AC Generator with Canopy Open

Figure 1 I

l-l Feb 6/74

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: ;MOTOR GENERATOR DIVISION ‘: “0 QD =i HOBART BROTHERS COMPANY

% z .9. ,q,1” (4)

(5)

I

(6)

(7)

(8)

(9)

(10)

(11)

(12)

Regulator Rheostat (8) - The voltage regulator rheostat increases or decreases

the automatically regulated output voltage value.

Panel Light Switch (5) - Th is switch is to the left of the panel light (6) (at

the top of the panel) and turns the pane I illuminating light ON or OFF as

desired.

Automatic-Manual Switch (4) - When in AUTO position, the voltage is

automatically regulated. In MANUAL position, voltage is manually regulated

with the manual (field) rheostat. The latter is an emergency procedure only.

This switch is located between the frequency meter and the voltmeter.

120-Volt Receptacles (10) - These receptacles supply 115 volts, 400 hertz AC

for the operation of 400 hertz power tools or any resistive load not exceeding

15 amperes. Each receptacle is protected by a fuse.

Field Rheostat (13) - Th e output voltage of the unit can be adjusted

manually with this field rheostat when the automatic-manual toggle switch

is in MANUAL position, This is an emergency procedure for use in event of

regulator failure.

Ammeter (9) - Th e ammeter is located in the upper right-hand corner of the

generator control pane I. The purpose of the ammeter is to measure the

amount of current in the line selected by the meter switch, being supplied

by the unit. It will register only when current is being delivered.

Voltmeter (7) - The voltmeter is located in the upper center of the generator

control pane I. The purpose of the voltmeter is to register the voltage generated

by the unit. The voltage may be read directly on the meter by setting the

meter switch in the desired position.

Frequency Meter (3) - The frequency meter is in the upper left-hand corner

of the generator control cabinet, and is calibrated in hertz from 380 to 420.

The meter should indicate exactly 400 hertz at any load when input

frequency is 50 hertz.

Remote Control Terminal Strips - Terminal strips are provided in the enclosure

immediately above the motor and generator for connecting remote control

stations. (Not Shown. See Connection Diagram.)

10. Interior Pane I Assembly

A. General

The interior panel assembly is mounted vertically inside the control box, in back

of the instrument pane I. Components are described as follows. I

Feb 6/74 l-l

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iMOTOR GENERATOR DIVISION

d HOBART BROTHERS COMPANY %

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1. 3 45 6 7 8 9 2 1

k 53 0

10 II0

16

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1. Fuse, AGC, 15A 10. Receptacles 2. Fastener 11. Pilot Light, Amber 3. Frequency Meter 12. Switch, Start/Stop

4. Switch, Auto/Manual 13. Field Rheostat, Manual 5. Switch, Pane I Light Voltage Cont. 6. Panel Light 14. Switch, Meter Selector

7. Voltmeter 15. Switch, Line 8. Rheostat, Regulator 16. Switch, On/Off 9. Ammeter 17. Pilot Light, Green

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Figure 2 I

rOBART_

I z QD

:MOTOR GENERATOR DIVISION :

“0 E HOBART BROTHERS COMPANY

48 6 9. 8.0 B. Controls and Instruments

(1)

, (2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

Rectifier, Load Contactor (10) - Furnishes direct current to the operating

coil of the load contactor.

Relay, Time De lay (11) (hdervoltage Timer) - This relay is set for a 5-second

time delay in the undervoltage circuit. This relay provides time de lay when

abnormal loads are encountered for a short period of time. If an undervoltage

persists for a period longer than 5 seconds, the main contactor circuit will be

opened.

Manual Range Limiting Resistor (6) - This 250-ohm resistor is set to limit

voltage when the AUTO-MAN UAL Switch is in MAN UAL position, and the

manual rheostat is turned all the way clockwise.

Undervoltage Relay (2) - This relay is set to close its set of contacts when

the line-to-neutral voltage falls to 93-103 volts; this is equivalent to a

line-to-line output voltage of 161-178.5 volts. The closing of these contacts

energize a 5-seccnd time delay relay switch Gee (2) above], which in turn

opens the main contactor, protecting the load from effects of low voltage.

hderfrequency Relay (4) - Th ese contacts open if the frequency drops to

approximately 360 hertz and ret lose when the frequency recovers to 375 hertz.

The purpose of this relay is to open the main contactor and protect the load

from the effects of operating at too low a frequency.

Overvoltage Relay (1) - Th is relay has a normally closed set of contacts

which open if the voltage exceeds 130 to 134 volts, line-to-neutral, or

225 to 232 volts, I ine-to-l ine . This opens the main contactor to remove the

load from the generator.

Plug Interlock Relay (13) - The 28 volts DC from the aircraft, through

terminals E and F and Neutral causes the interlock relay to close, as well

as the contactor in the aircraft. With the interlock relay closed, power is

maintained to the rectifier, holding the contactor closed when the ON button

is released.

Plug Interlock Switch (or Test Bank Switch) (12) - This toggle switch should be

OFF when feeding an aircraft with control leads on E and F, or ON for feeding

a load bank or other non-aircraft load without the plug interlock system.

Current Limiting Resistor (3) - This 1000ohm, 250watt resistor is in series

with the plug interlock relay to limit the amount of load current drawn through

the plug interlock relay contacts, in case phase “C” of the load contactor

does not close when the generator “ON ” pushbutton is actuated.

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2 3 4 5 6 7

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13 9 12

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1. Overvoltage Relay

2. Undervoltage Relay

3. Resistor, 100 Ohm 25 W

4. Underfrequency Relay

5. Overload Relay

6. Resistor, 250 Ohm 100 W (Gen . Ext. Field)

7. Resistor, 50 Ohm 100 W (Overload Adjust)

8. Rectifier, Generator Exciter Field

9. Terminal Strips

10. Rectifier, Load Contactor

11. Undervoltage Timer

12. Test Bank Switch

13. Interlock Relay

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Page 8

Interior Panel Assembly

Figure 3

FOBART

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I z e HOBART BROTHERS COMPAN”

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s. B,,+a

(10)

(11) I

Overload Relay (OL) (5) - This thermally operated relay serves to protect the

generator set from the effects of any induced overload (grounding or shorting

of exciter or generator, or exce,ssive load).

Overload Adjustment Resistor (7) - This resistor, connected in parallel with

the overload relay, serves to regulate the tripping time of the overload relay.

It is set to trip the overload relay at 25% overload in 4-5 minutes. If nuisance

overload tripping becomes a problem, trip point may be increased by moving

the resistor adjusting slide away from the end to which the jumper wire is

attached.

11. Motor Switch Box Assembly

A. General

The motor switch furnishes primary control for the drive motor. It is located in the

motor end of the canopy, with doors opening to gain access to the motor switch box.

N OTE : The motor STOP/START pushbutton switch is located on the control

panel at the opposite end of the unit. The non-manual components

for stop/start, time delay, voltage changeover, etc., are located

on a panel in the motor switch box assembly.

B. Components

(1)

(2)

(3)

Transformer - This transformer (3) reduces input line voltage from 380-V AC to

115-V AC for operation of the time delay relays, motor switch coils, control

relay, etc.

A 5-ampere fuse (15) protects the 115-V AC control circuit. The transformer

is functional at all times when input power is connected to the input terminals

and the overload relay (4) contacts are closed.

?TP%

- The control relay (9) applies power to the “main” motor switch

COI w en t e START pushbutton is pressed. The relay also by-passes the START and STOP pushbutton switches to prevent the relatively high switch-coil

currents from passing through them. All power for operation of switches, timers,

etc., must pass through this relay.

Main Motor Switch - The “main” switch (6) consists of three pairs of stationary

contacts and three pairs of movable contacts. Movable contacts are clamp

mounted on a bearing supported shaft. A core is attached to the shaft, so that

when the magnetic switch coil is energized,

the center of the coil.

it attracts the core and pulls it into

to close the contacts.

The core is thus moved to rotate the shaft sufficiently

The contacts are held in the closed position as long as

the switch coil is energized. When the coil circui,t is broken, the contacts

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1. Time delay relay (5 seconds) 9. Control relay

2. Time delay relay (25 seconds) 10. Interlock bar

3. Transformer 11. Motor start switch

4. Overload relay 12. Field rectifier

5. Overload coil 13. Motor run switch

6. Main motor switch 14. Resistor

7. Changeover links 15. Fuse (5 A)

8. Terminal board

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Page 10

Motor Switch Panel

Figure 4

Assembly I

Feb $74

T/i,/ .,‘/;

-6

IVISION FOBART e ,QQ

EMOTOR GENERATOR D z 2 HOBART BROTHERS COMPANY 3 2 4 0. B&l> ‘a

are opened immediately by gravity and spring loading. Stationary contacts

are equipped with blowout coils and arc shields to “blowout”, “dampen”,

and minimize arcing which results from opening the contacts. A small set

of contacts mounted on the “main ” contact shaft are closed when the “main ”

contacts are closed. These contacts apply a holding current to the switch

I coil circuitry and allow the START switch button to be released after the

main switch closes.

(4) Motor “Start” Switch - The motor “start” switch (11) is very similar to the

“main” motor switch (6) described above. Mechanical and electrical operating

characteristics are the same. The “start” switch is energized to close at the

same time the “main” switch is closed to provide a “wye” starting connection

to the motor‘stator windings.

(5) Time Delay Relay (25 Second) - This is a double-pole, double-throw,

120-V AC relay (2). It has an adjustable time delay range of from 5 seccnds

to 50 seconds. For this application it is adjusted for a time delay of 25 seconds

between energization of the coil and actuation of the contacts. The coil is

energized as soon as the control relay (9) contacts close. After a delay of

25 seconds, the time delay relay functions to open the “start” switch (11)

and close the “run” switch (13). At the same time it supplies power to the

5-second time delay relay (1) and also supplies 115-V AC power to the

voltage regulator for flashing the generator field. The 25-second delay

allows the motor to reach operating speed.

(6) Time De lay Re lay (5 Seconds) - This re lay (1) is identical to the time delay

relay (2) described above , except it is adjusted for a 5-second time delay.

It is energized at the same time the “run” switch is closed. The function

of this relay is to connect 115-V AC to the field application relay and

disconnect flashing current from the generator field, 5 seconds after the

“run” switch closes.

(7) Motor Run Switch - The motor “run” switch is identical to the “start” switch.

After the motor reaches operating speed with the stator windings in “wye”

connection, the “start” switch opens and the “run” switch closes to connect

the motor stator windings in “delta” connection for synchronous running.

The “main” switch remains closed during this operation.

(8) Start-Run Interlock Bar - The interlock bar is designed to mechanically pre-

vent the motor “start” switch and “run” switch from closing or being closed at

the same time.

(9) Field Rectifier - This rectifier converts 115-V alternating current to direct

current for excitation of the motor exciter fields. The rectifier becomes

functional five seconds after the motor run switch is closed.

I

Feb 6/74 l-l

71,; -5 : [; Page 11

(10)

(11)

(12)

(13)

(14)

FOBARZ z QQ

$MOTOR GENERATOR DIVISION s 2

z HOBART BROTHERS COMPANY “0

B . B ,‘,++

Overload Relay - These solenoid operated, dashpot type relays (4) protect the

motor against overload. Under a continuous overload condition, the coils

(5), which carry the motor input current, provide a magnetic force sufficiently

strong to pull the dashpot plunger upward against the retaining force of the

dashpot piston to OPEN the relay contacts which supply input power to the

trsformer (3). Thus, all operating power is removed from the controls and

all normally open switches return to OPEN position.

The resistive force of the dashpot on the movement of the plunger prevents

nuisance tripping of the relay contacts when the motor is overloaded for short

periods of time, such as in starting, etc.

Overload Coil - These coils (5), which are connected in series with input power

cables, provide magnetic force for operating the overload plungers.

Changeover Links - The connector links (7) provide a means of quickly changing

the motor stator connections for other applications.

Terminal Board - Four terminal boards (8) provide connection facilities for

electrical components interconnecting wiring.

Resistor - This 250-ohm, loo-watt resistor (14) functions to discharge voltage

induced in the revolving fields when the motor starts.

12. Power Module Assembly

A.

B.

l-l

Page 12

Genera I

The power module assembly provides a terminal point for the output power terminals,

and input power junction box. It supports the following components as described

below.

Components

(1)

(2)

(3)

Current Transformers (Ammeter) (7) - These transformers are used together with

the ammeter to indicate the amount of load current at any time.

Current Transformers (Line Drop Compensation) (9) - These transformers are

used with the regulator for line drop compensation.

Load Contactor (8) - The contactor connects and disconnects the generator

and the load. The contactor is furnished DC voltage by the rectifier on the

inter ior pane I . The generator ON/OFF switch (item 16, Figure 2) on the

control pane I, controls the opening and closing of the contactor.

Fed 6/74

YOBARI e a QQ

;MOTOR GENERATOR DIVISION ,,oB,WT BROTHERS COMPANY

z I CI

b . @ ,,k-

3 4 5 6 7

1. Studfiameplate “F” 6. Output Terminal~ameplate “N ”

2. Stud/hJameplate “E” 7. Current Transformers (Ammeter)

3. Output Terminalbameplate “C” 8. Contactor

4. Output TerminaI/t\lameplcite “B” 9. Current Transformer (Line Drop

5. Output Terminalfiameplate “A” C om-pensation)


Figure 5 I

1-l

Page 13

FOBART @ QQ

2MOTOR GENERATOR DIVISION z 2


b . I ,,+*

(4) Output Power Terminals: Phase “A” (6)

Phase “B” (5)

Phase “C” (4)

Neutral “N” (3)

Stud “F” (2)

Stud “E ” (1)

l-l Feb 6p4

Page 14 . -: ,/ -,.;,* :

FOBART e QQ

;MOTOR GENERATOR DIVISION z s


% . B ,,+”

SECTION 2. PREPARATION FOR USE

1. Genera I

When installing or storing this ground power unit, avoid locations exposed to high

huTidity or dust. Moisture condenses on generator parts and electrical controls, caus-

ing corrosion which can seriously affect operation and efficiency. Dust and dirt cause

needless extra wear on al I moving parts.

2. Wiring

The incoming power must be 3=phase, and should pass through a fused disconnect switch

ahead of the motor switch input terminals. Make certain that overload coils, motor

switch link position, and control transformer connections are correct for the input

voltage used.

Be sure that the power supply is the proper voltage (see nameplate), and that wiring

is of sufficient size to carry the load. Refer to the following data, which has been taken

from the National E lectrical Code.

Fuse and Wire Sizes

Chart 1

3. Motor Switch Overload Coils

When the unit is shipped, the motor switch is assembled with overload relay coils for

the voltage specified by the customer.

Overload Relay Coil Sizes

Chart 2

l-2

Page 1

FOBART I QQ

;MOTOR GENERATOR DIVISION f z


B . B ,+”

CAUTION: IF A 3-CONDUCTOR, RUBBER-COVERED, INPUT POWER CABLE

IS USED, IT IS NECESSARY TO GROUND THE EQUIPMENT WITH

A WIRE OF MINIMAL COMPARATIVE SIZE TO THE WIRE- IN THE

INPUT POWER CABLE. THIS WIRE MAY BE BARE OR INSULATED

AND OF ANY COLOR, BUT IT MUST MAKE GOOD ELECTRICAL

I CONTACT WITH A METALLIC PART OF THE GENERATOR FRAME,

OF THE SHEET METAL CABINET, OR OF THE CONTROL BOX AND

A WATER PIPE OR THE FUSED DISCONNECT SWITCH BOX.

WHEN 4-CONDUCTOR, RUBBER-COVERED CABLE IS USED, THE

GROUNDING WIRE MUST BE GREEN IN COLOR. WHEN FLEXIBLE

ARMORED CABLE OR CONDUIT IS REQUIRED BY LOCAL CODES,

INSTALL IT IN SUCH A MANNER THAT ADEQUATE GROUNDING

OF THE EQUIPMENT IS INSmED.

WITH THE MACHINE FRAME GROMDED, THE OPERATOR IS

ALWAYS ASSURED MAXIMUM PROTECTION EVEN IN THE UN-

LIKELY EVENT OF INSULATION FAILURE OR ACCIDENTAL

GROUNDING OF THE POWER SUPPLY.

4. Mounting Installation of Synchronous Motor-Driven Generator Sets

A. General

No “hard and fast” rules for mounting the generator set can be given because

they may vary, depending upon the users requirements and facilities. Common

sense must be used in all installations to achieve a firm mounting which is free

from vibration and which does not place undue stress on the skid (mounting frame)

and motor-generator.

B. Mounting Cautions

Before recommending how to mount the generator set, we believe you should

first be cautioned about how NOT to mount it.

CAUTION: (l)DO NOT BOLT THE MACHINE TO AN U\IEVEN FLOOR,

PAD, OR PEDESTAL. THIS CAN CAUSE DAMAGING

STRESSES IN THE FRAME AND MOTOR-GENERATOR.

(2)D0 NOT SET (AND OPERATE) THE MACHINE LOOSELY ON

AN UNEVEN SURFACE. THIS CAN RESULT IN AN UN-

STABLE THREE-POINT SUSPENSION AND CAUSE VIBRATION.

Most all cases of vibration are caused by mounting the generator set on an uneven

floor surface.

I

l-2 Feb 6/74

Page 2 ,7;l’j .3 “2

$iOBARl z a QQ

qMOTOR GENERATOR DIVISION

‘c 2 HOBART BROTHERS COMPAN”

‘c, d 0. @*1x

C. Recommended Mounting Instructions

(1) Mounting surface - The single most important thing in generator mounting

is the mounting surface. Whether the machine is mounted on a cement

floor, or on a pedestal, the mounting surface should be even and smooth

I so that the full length of the skid can contact the cement.

(2) Pad mounting - It is recommended that some type of insulating pad be used

between the skid and mounting surface in all installations.

Resilient pads placed between the skid and the floor may help to compensate

for slight unevenness in the mounting surface, and also insulate the skid

from-floor to reduce vibration . . Hobart pads No. 389945 can be used

with or without bolts from skid to floor.

(3) Leveling pads - An alternate method to the plain pad installation described

above is one involving the use of self-contained leveling mounts such

as “Unisorb Level-Rites” or equivalent. These mounts will compensate

for a greater degree of floor unevenness than plain insulating pads.

(4) Instructions for use of insulating pads - Whatever pad components are

selected, these rules should be observed.

Fe b 6/74

(a) Support the skid at six or eight evenly spaced points, along each

side of mounting frame. (See illustration below.)

(b) Avoid solid contact between skid and floor.

(c) Mount Lshaped b rackets along outside of frame to prevent unit

from “walking”.

D. Vibration Trouble Shooting

Because of the complex nature of vibration and resonance, it may be necessary

to change the type and location of mounts to achieve the best results on a

particular machine.

Pad 389945 8 Req ‘d

Pads equally spaced from ends of frame

l-2

Jan 29/?‘5 Revised Page 3

FOBART z QQ

;MOTOR GENERATOR DIVISION z 5 HOBART BROTHERS COMPANY

“ss. 2 64 c . BAT+

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Feb ~$74

FOBART e QQ

$MOTOR GENERATOR DIVISION z :

z HOBART BROTHERS COMPANY

“0

44@. g,,++*

SECTION 3, OPERATION

1. General

Determine that the machine is properly installed (see Section 1, sub-section 12, para.

11 2 and 3). Connect a 3-phase load to terminals N, A, B, C, E and F at the upper

left-hand side of the power module panel. E and Fare interlock leads for aircraft

service. Also see Section 2, sub-section 4, l-2, page 2.

A. Starting

To start the unit, place the motor circuit breaker, if so equipped, in ON position,

momentarily push the motor START button (12, Fig. 2) and release it. The armature

should rotate in the direction indicated by the arrow on the housing. If it does

not, wait until the motor is up to speed, stop the machine (see paragraph D below),

and reverse any two of the incoming power lines. This change will cause the

armature to rotate in the correct direction. Armature rotation should be in a

counterclockwise direction when the operator is facing the generator control

pane I, where the START-STOP push buttons are located.

With the motor running , the AMBER pilot light will glow. After the machine is up

to full speed, adjust the voltage regulator rheostat until the voltmeter indicates

120 volts line to neutral.

B. Applying Load

Press the generator ON button to apply the load. The GREEN pilot light will

glow when the generator output contactor is closed. The voltage regulator will

automatically maintain the set voltage.

The voltage between any two phases (A-B, B-C, C-A) or line to neutral can be

read directly on the voltmeter by setting the meter selector switch and associated

toggle switch to the desired position.

The current on any phase can be read directly on the ammeter by placing the

meter selector switch on the desired phase (A, B, or C).

C. To Disconnect Load

To stop the supply of current to the load, push the generator OFF pushbutton.

D. To Stop Motor

Disconnect generator load, if any, push the motor STOP pushbutton momentarily,

and release it.

I

l-3

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FOBART e QQ

;MOTOR GENERATOR DIVISION t 2 HOBART BROTHERS COMPANY

“0 2

b . B ,,,J-

2. Remote Control

Remote stations may be connected to the terminal strips above the motor and generator

housings in accordance with the connection diagram furnished with the equipment. When

adding remote control, note that it is necessary to remove the jumpers from the terminals

used in cknecting the remote station.

3. Variations

As stated in Section 1, Description, paragraph 3, l-l, page 1; when variations to the

basic specifications occur, information will be added at the end of the section in which

information would normally be located.

Variation numbers assigned to the different specs (S numbers) covered by this manual,

vary from one to the other. Each spec (S number) is listed below, with variations shown

as they apply to the particular spec number.

A. S-4576A:

(1) Var. 1 - not used


(3) Var. 3 - 220-Volt Input Power

(a) Explanation - Motor switch designed for 220-volt rather than

380-volt input voltage.

(b) Data - Data listed in Section 1, l-1, page 2 is changed by

Var. 3 as follows:

Motor

Volts 220 v AC

Amperes 161 A

(c) Fuse and Wire Size Change:

Amps at 220 Volt Max Fuse Size Min Wire Size

161 A 350 A #4/o

(d) Motor Switch Overload Coil Change:

Volts Coil Size _Y

Piston Projection Above Dashpot

220 6 turns 1 9/16 inch p

l-3 Feb 6/74

Page 2 7-/j) 2, ;k

yOBAi?l 3 3 QQ


“0 d HOBART BROTHERS COMPANY

+F p’ 4. &t (4) Var. 4 - With Economy Trailer

This four-wheel trailer, with manual brake, 6.00 x 9 tires, has no

fenders and no springs. See Chapter 4, Section 2, 4-2, page 34 for

parts list and (exploded) view of trailer.

B! S-4713A:

(1) Var. 1 -not used


(3) Var. 3 - With Economy Trailer

Same as Var. 4 above (S-4576A-Var. 4).

C. S-4820A:



(3) Var. 3 - 2200Volt Input Power

(a) Explanation - Motor switch designed for 220-volt rather than

380-volt input voltage.

(b) Data - Data listed in Section 1, l-l, page 2 is changed by

Var. 3 as follows:

Motor

Volts 220 V AC

Amperes 108A

(c) Fuse and Wire Size Change:

Amps at 220 Volt Max Fuse Size Min Wire Size

108A 225 A #2 .

(d) Motor Switch Overload Coil Change:

Volts 7 ~~~~~~~~

Coil Size Piston Projection Above Dashpot

220 6 turns 7/8 inch 1

I

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Page 3

YOBARI

e s QQ


2 HOBART BROTHERS COMPAN” ‘c

B . B .+‘-’


This four-wheel trailer, with manual brake, 6.00 x 9 tires, has no

fenders and no springs. See Chapter 4, Section 2, 4-2, page 34

for parts list and (exploded) view of trailer.

D. S-4911 OB:




Same as Var. 4 above, in S-4820A.

l-3

Page 4

Fe b 6/74

FOBART

B QQ ;MOTOR GENERATOR DIVISION

z z HOBART BROTHERS COMPANY

“0 2

B . B ,,++

CHAPTER 2. SERVICING

SECTION 1. MAINTENANCE. INSPECTION/ CHECK

1. Genera I

To make certain the generator set is always in good operating condition, it must be

inspected and maintained regularly and systematically.

2. Inspection, Testing and Repair

A. Motor Starting Switch

(1)

(2)

(3)

(4)

(5)

(6)

All three contacts in the switch should close at the same time. If they do not,

the stationary contact mount can be bent slightly to obtain simultaneous action

at all three poles.

If switch contacts are excessively pitted, burned, or worn, they should be

replaced.

The oil level in each of the two overload solenoid dashpots must be maintained

at the top of the three small, conical projections cn the upper side ‘of the piston,

or about 3/4 inch visible depth. Use Dow Corning #200 dashpot oil of 100

centistokes viscosity.

To check the dashpot oil level, remove the dashpot by forcing the heavy wire

retaining spring out of the groove on the under side of the dashpot and moving

it aside. The dashpot is then free to be removed from the assembly. Remove

the dust cover from the top of the cylinder. To remove the dust cover it is

usually necessary to pull up on the piston by grasping the projecting solenoid

core. Considerable force may be necessary to break the “suction” between

the piston and bottom of the cylinder.

Examine the faces of the movable and the stationary magnetic yokes to make

sure they are free from gum and dirt deposits.

Test the operation of the switch by pressing the START button. If the switch

does not operate, it may be due to a faulty overload relay or to a defective

NVR (no voltage release) coil. In either case the defective part should be

rep laced.

The switch coil winding should be tested for open circuits or shorted turns.

If an open circuit exists, it may be located at the connections between the

windings and the terminal lugs. If the open circuit cannot be found, or the

coil winding is shorted, the coil should be replaced. I

2-l

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FOBARI

I QQ :MOTOR GENERATOR DIVISION

z e HOBART BROTHERS COMPANY

“0 G

B . B ,, 16

(7) Inspect the NVR (no voltage release) coil. If the insulation is charred or burned

(an indication of shorted turns) the coil should be replaced.

(8) Inspect the overload relay molded block; if it is cracked or broken, it should be

replaced.

(9) If the relay contacts do not close when the RESET button is pushed, the complete

overload trip assembly should be replaced.

B. Lubrication

DO NOT LUBRICATE MOTOR OR GENERATOR BEARINGS. This generator is equipped

with sealed bearings which normally require no lubrication for the life of the bearings.

C. Periodic Inspection

N OTE: Check any change in operating noise or smoothness at once, and shut

unit down if change is abrupt and harsh. Sudden change of load or

operating conditions norma Ily indicates trouble requiring immediate

attention and remedial measures.

Routine inspection is as follows:

(1)

(2)

(3)

(4)

2-l

Page 2

Daily or 8 Hours - Observe operation of instruments (check voltage and current

in each phase at least daily).

Monthly or 100 Hours - Clean and visually inspect entire unit with unit stopped,

open access and pane I doors.. FOR SAFETY, OPEN DISCONNECT SWITCH

TO CUT OFF INPUT POWER. Check all electrical connections for security

.and correct placement.

Six Months or 500 Hours - With metal rod on housing, listen to bearing at

each end of rotor shaft for clicks, whines, or pounding, indicating trouble.

Send to overhaul if in doubt of serviceability of bearings.

Check rotating diodes and diode leads for tight, secure connections.

Clean complete unit with dry rags and low pressure air and inspect for broken

welds, deformation, cracks, or other evidence of damage. Check all attach-

ing hardware for adequate tightness and inspect all wiring for aged or frayed

insulation and for secure connections.

5000 Hours - This is the anticipated service life of the unit. Consider sending

to overhaul for rebuilding.

FOBART

e QQ -,MOTOR GENERATOR DIVISION

a 2 E HOBART BROTHERS COMPANY

“0

% . LI ,,+*

D. Inspection

After every 50 operating hours, inspect generator and control box for loose connec-

tions. Check instruments and switches for correct operation.

I

Fe b 6/74 __ )’ f’ T,y p ,.> ._.

2-l

Page 3

2-l

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YOBARI

e a QQ

;MOTOR GENERATOR DIVISION s

“0 E HOBART BROTHERS COMPANY

4 *. B,l\ 6

Feb6/?'4 _ .-, J (.I, " , 2'

HOBART e f QQ


i HOBART BROTHERS COMPANY

‘0

b . a ,,I’*+

CHAPTER 3. TROUBLE SHOOTING

SECTION 1. TROUBLE SHOOTING -PR.OCE-DURE.S

1. General

Trouble shooting is an orderly process of checking and eliminating possible causes of

trouble until the exact cause of a trouble is found. As a rule, the best place to start

looking for the cause of a trouble in a circuit is at the source of power. Continue

testing and checking the circuit, step-by-step, in an orderly manner, until the cause

of trouble is located. See connection and schematic diagrams.

2. Trouble Shooting Chart

A. Description

The trouble shooting chart lists information under three headings:

(1) Trouble, symptom, and condition

(2) Probable cause

(3) Test, check, and remedy

B. Use of the Trouble Shooting Chart

Read the trouble symptoms before proceeding to causes and remedies. For example,

at the beginning of the trouble shooting chart under MOTOR, first trouble listed

is: “Motor will not start - nothing happens when the start button is pressed”.

1 If the motor will not start, look to the right under PROBABLE CAUSE and REMEDY,

and find the various things which could cause the trouble, and what to do to check

and remedy them.

3. Equipment for Trouble Shooting

A good quality multi-scale voltohmmeter is the only instrument required for trouble

shooting. At least two “jumper” leads with “alligator”, or similar clips, will be

required.

4. Safety

WARN IN G: EXERCISE EXTREME CARE TO AVOID CONTACT WITH ELECTRICAL

CIRCUITS AND REVOLVING EQUIPMENT WHICH COULD CAUSE

SERIOUS INJURY IF TOUCHED WHEN TROUBLE SHOOTING OR

OPERATING THE EQUIPMENT.

I

3-l

Page 1

FOBART

e a QQ

:MOTOR GENERATOR DIVISION

t 2 HOBART BROTHERS COMPANY

“, *. ,,d 5. Diagrams

A schematic diagram of the generator set is provided in this chapter (Chapter 3). This

diagram can be very helpful in trouble shooting. Components shown in this diagram are identified by an alpha-numeric symbol in a legend appearing on the diagram. In some cases, an pbbreviation of the item name appears at the location of the item in the

schematic layout to further aid in its identification. For example, the symbol K9

identifies the overvoltage relay in the legend, and shows OV as well as K9 in the

schematic. M2 identifies the voltmeter, and VM appears at the location in the

diagram, along with M2.

A connection diagram is also furnished in Chapter 3. It also can be very helpful in trouble shooting, parts rep.lacement, etc. Also see Motor Switch Diagram. The numbers

of these diagrams appear in the table below.

6. Connecticns and Wiring

Before condemning any electrical component, check all connections and wiring which

could affect its operation. In many instances a component may be non-functional simply

because it is not receiving power because of a loose connection or a poor ground. In

most cases throughout the trouble shooting chart, it will be assumed that connections

and wiring have been checked.

FOBARZ

t :: QQ


“0 0’ HOBART BROTHERS COMPANY

+? * . ALTO ‘C

TRnl IRIF PRARARIF CA1 ICF RF AAFnV

Motor will not No power to the motor Check input lines and fuses. Check

start - nothing to insure that disconnect switch is

happens when turned on.

the START button

is pressed. Overloads are stuck open Clean or replace.

(dashpot type)

Control transformer is defec- Replace or reconnect.

tive or incorrectly connected

(shou Id provide 110 volts

on secondary)

NVR coil on motor switch

is defective.

Replace the defective coil.

Flexible copper braid from

movable contacts loose or

open

Tighten, if loose. Replace.

Fuse or over load Copper braids from movable Tighten, if loose. Replace if

opens when contacts loose and shorting necessary.

START button out

is pressed.

Power has single phased Check input power on all phases.

Rotating diodes (motor end) Replace defective units.

have failed

Motor stator or motor revolv- If motor stator is faulty, send to

ing fieldsshorted or grounded overhaul for replacement of stator.

If revolving fields are faulty, re-

move ground if grounded or replace

field(s) if shorted.

Motor beg ins No fluid in overload dash- Fill to top of projection cn piston

to start but stops pots with Dow Corning dashpot fluid. See

before getting up Chapter 2, Sect. 1, sub-section 2.

speed.

Feb 6/74

77)) -3/b

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HOBART

P QQ ;MOTOR GENERATOR DIVISION

i t z HOBART BROTHERS COMPANY

“c

%* . B ,,,8

TROUBLE PROBABLE CAUSE REMEDY

MO TOR (CON TIN UE D)

3. Motor begihs to Wrong overload coils. There Replace with the proper overload

start but stops before should be a 12-l/2 turn coil coil.

getting up speed. for 380-volt operation.

(Continued)

Auxiliary contact on motor Reform or replace the contacts.

switch does not make contact

In put power has single -phased Check input lines and fuses; correct

as needed.

Defective or incorrectly Replace or reconnect.

connected control transformer

4, Motor starts, but No DC excitation to motor Repair or replace as needed, after

lacks power and exciter fields due to: determining defective components

“bogs down ” under and cause of failure.

load. * a) Open adjusting resistor

b) Defective motor fie Id

exciter rectifier

c) Defective rotary exciter

diodes or armature windings

d) Motor field timer defective

(will not close contacts)

* This condition will likely

develop an underfrequency

and undervoltage which will

trip the UF or UV re lay,

thus shutting the unit down.

5. Synchronous motor No excitation to motor field See item above.

draws excessive cur-

rent from line: poor

power factor

I

3-l ce b 6/f4

Page 4

-. . -...~

HOBAR;

e QQ ,MOTOR GENERATOR DIVISION

:: : 2 HOBART BROTHERS COMPANY

“0 4i *. BL,J

TROUBLE PROBABLE CAUSE

GENERATOR EXCITER AND REGULATOR

REMEDY

1. Nolvoltmeter Faulty voltmeter Check, replace if required.

reading, normal

voltage into Faulty meter selector switch Check switch - repair or replace, as

contactor required,

Loose connection Repair.

Rotary exciter not building

up:

a) Loss of residual magnetism Remagnetize with separate DC source

(12 or 24 volts). Repair circuit or

b) Open in static regulator replace defective components.

starting circuit

\ c) Defective revolving

diodes (generator end)

Replace defective diode(s).

Open revolving fie Ids Repair or replace.

2. Voltage too high, Loose connection to Rl, R2, Resolder connection if at rheostat,

regulator rheostat or R3. (See schematic.) or tighten screw if at terminal strip.

will not control

3. Voltage too low, Defective regulator rheostat Replace.

regulator rheo-

stat will not Defective static regulator Repair or replace.

control

4. Voltage oscillates Defective damping circuit Adjust per regulator manual or repair

in ‘regulator as required.

5. Voltage drops as Too long output cable Shorten output cable.

load is applied

Line drop compensation Determine that line drop compensation

turned off or set too low is on, then adjust per regulator manua

instructions.

I

Fe b 6/74 3-l

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FOBART

e QQ :YOTOR GENERATOR DIVISION

z : HOBART BROTHERS COMPANY % 2

b . B ,,++


GENERATOR

1. Overheatb Shorted stator Remove short circuit or replace

stator,

Loose connection

Overload

Improper ventilation

2. Unbalanced output Open or shorted phase

Tighten connection,

Remove over load,

Provide adequate ventilation.

Correct shorted or open circuit

condition.

Loose connection Tighten connection. Also see

Section 3 - OPERATION.

3. Poor wave form

4. High harmonics

5. High deviation

fat tor

Unbalanced load Balance load.

Poor power factor load Balance load.

Non-linear load (for example,

SCR or magnetic amplifier

load)

GENERATOR CONTROLS

1. Cannot close con- Open contactor coil circuit Check out circuit to determine

tactor (Hartman point of open circuit, and remedy

type) situation, as required.

Shorted output con tactor coil Replace coil.

Defective diode pane I Replace defective diode(s).

Underfrequency, undervoltage, Correct defect in power or replace

or overload tripped relay(s) as required to remedy the

situation. Press reset push button

on hinged panel to reset latching

relays.

I

3-l Feb 6/74

Page 6 7/// - 5g

noBART e z QQ


“0 d HOBART BROTHERS COMPANY

+-c *.BLlT 6


GENERATOR CONTROLS (CONTINIJD)

2. Cob tactor

nuisance trips

Any of the protective relays Check operating voltage and

may be opening frequency; if okay, replace relay(s)

as required or repair circuitry. If

overload relay trips, remove overload

Transient surge of voltage If load is within generator rating,

it may help to adjust ballast resistors

in regulator. See regulator manual

for further instruction.

Overvoltage relay trips too Replace overvoltage relay with one

soon on transient surge less sensitive or readjust to higher

trip point.

3. Unbalanced out- Unbalanced load No trouble unless protective relay(s)

put (voltage , trip.

current, or both)

indication Defective meter switch Replace.

Bad contacts in contactor Make sure all contacts make contact

or replace.

EXTERNAL LOAD

1. Unbalanced load Break in output cable Repair cable.

Bad connection .Check and tighten cable connections

as required.

2. Contactor will Cable not plugged into air- Plug cable into aircraft.

not stay closed, craft

opens immediate Iy

Test bank switch OFF If using load bank, turn switch ON,

or if aircraft has no provision for

28-volt return on E and F, throw

switch ON, otherwise throw switch

OFF.

I

3-l

Page 7

TROUBLE PROBABLE CAUSE RE ME DY

EXTERNAL LOAD (CONTINUED)

2. ContactorJ will Test bank switch OFF If aircraft does have 28-volt return,

not stay closed, (Continued) check to see that it is reaching the

opens output cable. (Check for voltage

immediately at output terminals E and F.)

(Continued)

Contactor coil defective Replace the coil.

Contactor control circuit Check out circuit and remedy

defective defect(s) as required.

I

3-1 Feb 6/74

Page 8 T’ -.- - i

General

The Illustrated Parts List identifies, describes, and illustrates main assemblies, sub-

as emblies, s and detail parts of the 400-Hz, synchronous motor-driven generator sets,

manufactured by Motor Generator Division, Hobart Brothers Company, Troy, Ohio

45373. The generator sets are identified as Specification No. 4576A, Specification

Nol 4713A, Specification No. 4820A and Specification No. 491OB and variations.

2. Purpose

The purpose of the list is to provide parts identification and descriptive information

to maintenance and provisioning personnel for use in provisioning, requisitioning,:

purchasing and issuing of spare parts.

3. Arrangement

Chapter 4 is arranged as follows:

Section 1 - Introduction

Section 2 - Manufacturer’s Codes

Section 3 - Parts List

4. Explanation of Parts List

A, Contents

The parts list contains a breakdown of the equipment into assemblies, subassemblies)

, and detail parts. All parts of the equipment are listed except:

(1) Standard h 1

ar d ware items (attaching parts) such as nuts, screws, washers,:etc.,i

which are available commercially. I

(2) Bulk items such as wire, cable, sleeving, tubing, etc., which are also corn- I

merically available.

(3) Permanently attached parts which lose their identity by being welded, sbldered,

riveted, etc., to other parts, weldments, or assemblies. I

B. Parts List Form / I

This form is divided into five columns. Beginning at the left side of the form; and I proceeding to the right, columns are identified as follows: I I

I

SECTION 1. INTRODUCTION

L- --------“--_ .- Page 1 1 /

7,::: ,- - I, j ,

‘__

(1) “FIGURE-ITEM NO. ” Column

(2)

(3)

(4)

(5)

.I.. _ _-_-

43 ._ __, -.

P_ase_ 2 _ .- --_- -.

7/J,/ - f- J

This column lists the figure number of the illustration applicable to a particular

parts list and also identifies each part in the list by an item number. These

item numbers also appear on the illustration. Each item number on an illustra-

1

ion is connected to the part to which it pertains by a leader line. Thus the

igure and item numbering system ties the parts list to the illustration and vice

versa.

“PART NUMBER” Column

All part numbers appearing in this column are Hobart numbers. If a Hobart

number has not been assigned to a part, “NO NUMBER” will appear in the

column and a vendor number (size description for hardware) will be listed in

the N OMENC lATURE column.

“N OMENC LATURE ” Column

The item identifying name appears in this column. The indenture method is

used to indicate item relationship. Thus, components of an assembly are listed

directly below the assembly and indented one space. Sizes, ratings, or vendor

part numbers may also appear in this column.

“EFF” (Effectivity) Column

This column is used to indicate applicability of parts when two or more models

of equipment are covered by the parts list. Code letters are used to indicate

parts which are used only on a certain mode I, or models. Parts in this list

are coded as follows:

Uncoded parts are usable on all models.

Parts coded “A” are usable on Specs 4576A only.

Parts coded “B ” are usable on Specs 4576A, Var. 3 only.

Parts coded “C” are usable on Specs 4576A, Var. 4 only.

Parts coded “D” are usable on Specs 4713A only.

Parts coded ‘E” are usable on Specs 4713A, Var. 3 only.

Parts coded “F” are usable on Specs 4713A, Var. 4 only.

Parts coded “G” are usable on Specs 4820A only.

Parts coded “H ” are usable on Specs 482OA, Var. 3 only.

Parts coded “J ” are usable on S pets 482OA, Var. 4 only .

Parts coded “K” are usable on Specs 49108 only.

Parts coded “L” are usable on Specs 491OB, Var. 3 only.

“UN ITS PER ASSEMBLY” Column

This column indicates the quantity of parts required for an assembly or subassembly

in which the part appears. This column does not necessarily reflect the. total ’

used in the complete end item.

Ma-y 12/75

.’

TOR GENERATOR Dl HOBART BROTHERS COMPANY

VISION

SECTION 2. MANUFACTURER’S CODES

1. Explanation of Manufacturer’s (Vendor) Code List

The following list is a compilation of vendor codes with names and addresses for

su P

pliers of purchased parts listed in this publication. The codes are in accordance

with the Federal Supply Codes for Manufacturer’s Cataloging Handbook H4-1, and

are arranged in numerical order. Vendor codes are inserted in the nomenclature

column of the parts list directly following the item name and description. In case

a manufacturer does not have a vendor code, the full name of the manufacturer will

be listed in the nomenclature column.

CODE VENDOR ‘S NAME AND ADDRESS

00779 AMP Inc.

P. 0. Box 3608

Harrisburg, Pennsylvania 17105

01121 Allen-Bradley Company

1201 South 2nd Street

Milwaukee, Wisconsin 53204

02660 Amphenol Corporation

2801 S . 25th Avenue

Broadview, Illinois 60153

03743 Appleton E lectric Company

1713 W. Wellington Avenue

Chicago, Illinois 60657

04009 Arrow-Hart and Hegeman Electric Company

103 Hawthorne Street

Hartford, Connecticut 06106

04713 Motorola, Inc.

Semiconductor Products Division

Phoenix, Arizona 85008

14831 Magnetic Components Inc.

290 Fischer Street

Ccsta Mesa, California 92627

16053 Pepka Spring Company

810 S. Waugh

Kokomo, Indiana 46901

4-2

Page 1

CODE

24248

26992

27191

31356

44655

60038

60741

71400

71785

72765

4-2 ..~.

Page 2

rOBART

I x

QD

~MOTOR GENERATOR DIVISION

“c 2 HOBPlRT BROTHERS COMPANY 4i- d 4. BLl\

VEN DORIS NAME AND ADDRESS

South Chester Corporation

South Company Division

3rd and Governor Printz Blvd.

Lester, Pennsylvania 19113

Hamilton Watch Company

Columbia and West End Avenue

Lancaster, Pennsylvania 17604

Cutler-Hammer Inc.

Power Distribution and Control Division

4201 N. 27th Street

-Milwaukee, Wisconsin 53216

J-B-T Instruments, Inc.

424 Chapel Street

P. 0. Box 1818

New Haven, Connecticut 06508

Ohmite Manufacturing Company

3601 W. Howard Street

Skokie, Illinois 60076

Timken Roller Bearing Company

1835 Dueber Avenue SW

Canton, Ohio 44706

Triplett E lectrical Instruments Company

Harmon Road

B luffton, Ohio 45817

Bussmann Mfg. Division of

McGraw-Edison Co.

2536 W. University Street

St. Louis, Missouri 63017

Cinch-Jones Mfg. Company

1026 S . H Oman Avenue


Drake Manufacturing Company

4626 N . Olcott Avenue

Harwood Heights, Illinois 60656

I

May 12/‘75

CODE VEN DOR ‘S NAME AND ADDRESS

73559 Carling Electric, Inc.

505 New Park Avenue

Hartford, Connecticut 06110

nib63

75376

76062

77342

79470

80368

81091

88223

88601

roBART

I

QD

;MOTOR GENERATOR DIVISION f :

G HOBART BROTHERS COMPANY z B . L1 o,*G

89873

May 12/‘75

Hartman E lectric Manufacturing Company

P. 0. Box 8

Mansfield, Ohio 44901

Kurz-Kasch Inc.

1421 S. Broadway

Dayton, Ohio 45401

Marlin-Rockwell Company

Division Thompson Ramo Wooldridge Inc.

1002 Chandler Street

Jamestown, New York 14701

American Machine & Foundry Company

Potter & Brumfield Division

1200 E . Broadway, P. 0. Box 522

Princeton , Indiana 47570

Western Rubber Company

620 E . Douglas

Goshen, Indiana 46526

Sylvania Electric Products Inc.

730 Third Avenue

New York, New York 10017

Pass & Seymour Inc.

Solvay Station

Syracuse, New York 13209

Jaymar Terminal Boards, Inc.

25-27 Brutus Street

Weedsport, New York 13166

Westinghouse Electric Corp.

Transformer Division

Sharpsville Avenue

Sharon, Pennsylvania 16146

Cortland Industries, Inc.

4545 W. Cortland Street


4-2

Page 3

FOBART

I 5

QD


“0 2 HOBART BROTHERS COMPANY 46 ‘, 4. @LO

CODE

90763

91929 ’

VENDOR ‘S NAME AND ADDRESS

United-Carr Inc.

4258 N . Cicero


Honeywell Inc.

Building Controls & Components Group

Micro Switch Division

Freeport, Illinois 61032

93929

98403

G-V Controls Inc.

81 Okner Parkway

Livingston, New Jersey 07039

Agastat Division

Elastic Stop Nut Corporation

1027 Newark Avenue

Elizabeth, New Jersey 07207

98410 E.T.C. Inc.

990 E . 67th Street

Cleveland, Ohio 44103

The following numbers were added to update vendor’s code:

0223 1 Anchor Rubber Company

840 S . Patterson Blvd.

Dayton, Ohio 45402

14655 1 Cornell & Dubilier Electric Corp.

50 Paris Street

Newark, New Jersey 07101

58849 Syntron Company

1938 Black Street

Homer City, Pennsylvania 15748

81074 Holub Industries, Inc.

414 Hi-Center

Sycamore, Illinois 60178

89616 Un ited States Rubber Company

Consumer Industrial and Plastics Products Division

Mishawaka, Indiana 46544

I

4-2

Page. 4

T. /. ,,-.f”-.:

May 12/;75

Revised Aug 20/?‘5

1.

2.


SECTION 3. PARTS LIST

Explanation of Parts List Arrangement

The parts list is arranged so that the illustration will appear on a left-hand page and

th7 applicable parts list will appear on the opposite right-hand page. Unless the list

is unusually long, the user will be able to look at the illustration and read the parts

list without turning a page.

Symbols and Abbreviations

The following is a list of symbols and abbreviations used in the parts list.

* -

A,orAMP -

AC -

AR -

DC -

Fig. -

hd. -

hex -

Hz -

I.D. -

IN -

KVA -

MFD -

No. -

NHA -

PRV -

PSI -

Ref -

SA - TM -

T-R -

V-

NOlE:

Item not illustrated

ampere

alternating current

as required

direct current

Figure

head

hexagon

Hertz (c yc les -per.-sec ond)

inside diameter

inch

kilovolt-ampere

microfarad

number

next higher assembly

peak reverse voltage

pounds per square inch

reference (the item has been listed previously)

sub-assembly

Technical Manual

transformer-rectifier

volt (when used as a prefix to a five-digit number, indicates

vendor code) ,

An item which does not reflect an index number is an assembly which

is not illustrated in its assembled state, or it is similar (right-hand,

left-hand, top, etc .) to an item which is illustrated.

I

May 12/75 4-3

Page 1

4-3

Page 2

FOBART

E t QD

gMOTOR GENERATOR DIVISION :

“0 2 HOBART BROTHERS COMPANY

4i a4 Q. B&l+

/ /’ / -. 1 1 i

Generator Set

Figure 1

May 12/75

7 ,’

-

FOBART

z ::

;MOTOR GENERATOR DIVISION HOBART BROTHERS COMPANY

“c QQ d 46 Q , B ,, B

FIGURE HOBART

ITEM NO. PART NO.

l- S-4576A

S -4576A ,V3 I S-4576A ,v4

S-4713A

S-4713A,V3

S-4713A,V4

S-4820A

S-482OA,V3

S-482OA,V4

S-4910B

S-491OB,V3

1 H F-2727

2 5oN H -787

3 No Number

4 No Number

N OME NC LATURE UN ITS

1234567 EFF A!?Y

GENERATOR SET MODE L NO. 3210-50

GENERATOR SET WITH 220 VOLT INPUT

GENERATOR SET (TRAILER MOUNTED)

GENERATOR SET MODEL NO. 3210

GENERATOR SET (TRA ILER MOUN TED)

GENERATOR SET WITH UNGROUNDED

NEUTRAL AND PHASE REVERSALRELAY

GENERATOR SET MODE L N 0. 3209-50

GENERATOR SET WITH 220 VOLT INPUT

GENERATOR SET (TRAILER MOUNTED)

GENERATOR SET MODE LNO. 3209

GENERATOR SET (TRAllER MOUNTED)

. EYE, LIFTING

. CANOPY ASSEMBLY (For details

see Fig. 2)

. MOTOR & GENERATOR GROUP

(WITHOUT CANOPY) (For details

see Fig. 3)

. MOUNTING FRAME &lkAlLER

GROUP (For details see Fig. 13)

A

B

C

D

E

F

G

H

J

K

L

1

1

1

1

May 12/?‘5

Page 3

-_---- _ FOBART

e z QQ ;MO?OR GENERATOR DIVISION

“0 : HOBPlRT BROTHERS COMPANY B. B,,l~G

4-3

Page 4

Canopy Assembly

Figure 2

May 12fl5

FOBART

z z QQ

qMOTOR GENERATOR DIVISION

d HOBART BROTHERS COMPANY “c b . B ,,,J

FIGURE PART

ITEM NO. NUMBER

2- 50N H -787

1

2

* 3 ’

* 4

* 5

6

7

* 8

9

10

11

12

13

14

* 15

16

17

18

19

* 20

21

22

23

24

25

26

* 27

28

* 29

Q 30

* 31

50N H -774

50N H -775

50N H -776

5JB-984

5JB-985

H F-584

5ON H -778

60FC -622

6OFC-620

60GH P-234

50N H -796

75GH -323

50NH -765

50NH-810

50N H -784

75N H -334

50N H -797

5ON H -786

1 OOGH -683

3DW-248

1 OOGH -685

50N H -800

50N H -807

50N H -790

50N H -79 1

50N H -792

50N H -793

5ON H -794

50N H -792

60GH-145

DWP-982

50N H -622

480366

402987

NOMENCLATURE

1234567

UN ITS

Per EFF ASSY

CANOPY ASSEMBLY (For NHA See

Fig. 1)

. PANEL, END, CANOPY SA

PANEL, END

: : DOOR, RIGHT, SA

. . CAM V24248, No. 17012-15

. . SPRING V24248, No. 17011-15

. . SPACER

. . DOOR, LEFT, SA

. . HANDLE, LATCH, SA

. . SPACER

. . LATCH, DOOR.

. PANEL, LEFT FRONT, & RIGHT REAR

. GUIDE, DOOR

. TOP, CANOPY, SA

. PANEL, SIDE, LEFT

. DOOR, FRONT & REAR, ASSEMBLY

. BLOCK, HINGE, DOOR

. PANEL, LEFT, CENTER, SA

. PANEL, LEFT, REAR, & RIGHT FRONT

. HANDLE, LATCH, SA

. LATCH, DOOR

. SPACER, DOOR LATCH

. PANEL, RIGHT, CENTER

. PANEL, SIDE, RIGHT

. TRACK, RIGHT, TOP, SA

. . ANGLE

. . TRACK

. TRACK, LEFT, TOP, SA

ANGLE

: : TRACK

. HOOK, DOOR, END, CANOPY

. HANGER, CABLE

. PLATE, RE IN FqR.C IN G, CABLE HAN GER

. STIFFENER, PAti.E L, CEN TER

. NAMEPLATE, HOBART

REF

2

1

1

4

4

4

1

2

2

2

2

8

1

1

4

8

1

2

8

8

8

1

1

1

1

2

1

1

2

4

4

4

2

2

I

May 12/f5 4-3

Page 5

FOBART

B QQ gMOTOR GENERATOR DIVISION

z 5 HOBART BROTHERS COMPANY “c 2 B . B ,&

Motor Generator Group Without Canopy l

Figure 3

4-3

Page 6

May 12/75

-r- 4 /f,, ”

FIGURE

ITEM NO.

3-

II

2 ,

3

4

8 * 9

YOBART e a QD

5MOTOR GENERATOR DIVISION :

% E HOBART BROTHERS COMPANY 4k 6 0. B,C

PART

NUMBER

No Number

3 8250 1-24

50NH -703-O

No Number

481063-l

481063-2

481051-l

481051-2

No Number

381090

481061-l

481061-2

481062

A-98

NOME NC IATURE

1234567

MOTOR GENERATOR GROUP WITHOUT

CANOPY (For NHA See Fig. 1)

. BOX ASSEMBLY, MOTOR SWITCH

(For Details See Fig. 4)

. PANE L ASSEMBLY, DR IPPROOF


. MOTOR GE NERATOK GROUP


BOX, CONTROL, REGULATOR 8,

’ POWER MODULE ASSEMBLY

BOX, CONTROL, REGULATOR &

’ POWER MODU lE ASSEMBLY

. . BOX ASSEMBLY, CONTROL (For

Details See Fig. 8)

. . BOX ASSEMBLY, CONTROL (For

Details See Fig. 8)

. . BOX GROUP, REGUIATOR (For

Details See Fig. 10)

. . SUPPORT, MOUNTING (For Details

See Fig. 13)

MODU LE ASSE MB LY, POWER

l ’ (For Details See Fig. 12)

. . MODULE ASSEMBLY, POWER

(Fcr Details See Fig. 12)

. . COVER, POWER MODULE

. NAMEPLATE, ARROW

UN ITS

EFF ElY

Ri F

1

HJKL 1

ABCDEF 1

HJKL 1

ABCDEF 1

1

1

HJKL 1

ABCDEF 1

1

1

HOBART % a QD

iMOTOR GENERATOR DIVISION 5 HOB/\RT BROTHERS COMPANY

8 2 *F l

*. BL,I+

13 /

Motor Switch Box Assembly

Figure 4 I

4-3

Page 8

May 12p5

FIGURE PART

ITEM NO. NUMBER

4- 382501-24

l1 * 2

3 W-99 17-20

4 50NH-384 * 5 W-l 0079-9

6 1 OON H -264

7 382103

8 lOONH-261A

9 75N H -22 * 10 3 82 100-6

11

12

13

* 14 * 15

* 16 481568

YOBART

e :: QQ iMOTOR GENERATOR DIVISION

- “c 5 HOB.wT BROTHERS COMPANY 4i Q. BLIl ‘+

H F-530

W-l 1250

lOOGH-216-3

400847-3

402018

386075

404389-l

NOMENCLATURE

1234567 EFF

BOX, MOTOR, SWITCH, ASSEMBLY

(For NHA See Fig. 3)

. KNOB, FASTENING, PANEL

. WASHER, V24248

STYLE 7 PT, #10014-l 1

. METER, HOUR V26992,No.SG-771-40/130

. PANEL, HINGED, ASSEMBLY

. CONNECTOR, CONDUIT, 3”V03743,No.7488

. -COVER, IN SPECTION , HOLE

. WRAPPER, BOX, MOTOR SWITCH,

ASSEMBLY

. PANEL, REAR ASSEMBLY

. PANEL, FRONT ASSEMBLY

. SWITCH, MOTOR ASSEMBLY (For

Details See Fig. 5)

. CHAIN SUPPORT, HINGED PANEL

. LIGHT, WARN IN G., RED V72765, No, 5200-233-32

NAMEPLATE, CAUTION -- INPUT

’ POWER ON

ADAPTER, HOUR METER

: RELAY, REVERSAL PHASE

VO1121, No. 812-AAB-5

. PLATE, MTG. RELAY

F

F

UN ITS

Per ASSY

REF 2

2

1

1

1

3

1

1

1

1

2

1

1

1

1

1

May 12/75 4-3

Page 9

4-3

Page 10

FOBART

P QQ a $MOTOR GENERATOR DIVISION

; 2 HOBART BROTHERS COMPANY *F Q. 8AlY 6

I

Motor Switch Assembly

Figure 5 I

May 12/75

-,, :’

FIGURE HOBART

ITEM NO. PART NO.

5- 382100-d

1 404060-3

* 21 W -9350-76

3 40191 l-8

* 4 w-9350-77

5 ’ 40065 1

6 16DA-4252-4 * 7 w-9350-75

8 4OOMS-18 9 400670

10

11

12

13

14 * 15

16

17

18

19

20

21

22

23 * 2d

25

26

27

28 * 29

30

DATA #22 1 OA

50MS -28

4ooMS -11

FW-2131

4OOMS-16

6FW-574

2OOMS-146

1 OON M-97

1 OON M-98

4ooMS-10

lOOMS-122-l

200MS-132A

lOONM-94

lOOMS-21

1 OON M-95

w-799c-66

50MS -60

1 OON M-96

lOOMS-122-o

lOONM-92

lOOMS-132

1 OOMS -3 83

31

32

33

34

* 35

36

lOOMs-14

2OOMS-138

200MS -135A

400MS -72

w-9350-74

400MS -63

May 12p5

FOBART;

s a “c QD


i HOBART BROTHERS COMPANY

%. ,,,+*

N OMENC IATURE

1234567

UN ITS

EFF AttrY

SWITCH, MOTOR, ASSEMBLY REF.

. RE IAY, TIME DE LAY V98403,No.

7012ADA2M

. CABLE $182

. STRIP, TERMINALV88223, No. 441-8

. CABLE #181

FUSEHOLDER, WESTINGHOUSE

’ ADD-A-PART N 0.257A574GOl

. FUSE, MDL, 5 AMP V71400,No.MDL

CABLE, #180

: ARM, ROCKER

. TRANSFORMER V88601, Type MTA No.

332B635A22 Frame N o. 1730

COIL, NVR

: HOLDDOWN GOIL

BUS, LONG, RELAY TO CONTACTOR

: RELAY, OVER LOAD

COIL, OVERLOAD

: COIL, OVERLOAD

ACDEFGJ KL 3

BDEFHKL 3 WASHER, BLOWOUT COIL

: CYLINDER, COIL, BLOWOUT 6

3 INSULATOR, COIL, BLOWOUT

: BUS, SHORT, RELAY TO CONTACTOR

3

2

HOLDER, ARC SHIELD

: COIL BLOWOUT

9

3

S H IE LD , ARC ASSE MB LY

: . SIDE, SHIELD

‘3

2

BACK, SHIELD

: : SPRING V16053, No. 66 1

1

. . GUIDE, END (1 R.H. and 1 L.H.)

PLATE, SHIELD

l ;IOLDER ARC SHIELD

: CONTAdT

POST, CONTACT, STATIONARY

: MOUNT, DOUBiE, MOVABLE CON-

2

1

9

6

12

TACT, ASSEMBLY

CLAMP, SHAFT

: BEARING, SUPPORT, SHAFT

SHAFT, ARMATURE, MAGNETIC,

’ CONTACTOR

STRAP, CONNECTING, MOVABLE

l CONTACT

CABLE b34 & #185

: BUS, ANGLE I

3

14

1

1

6

2

9

4-3

Page 11

4-3

Page 12

FOBART I f QQ iMOTOR GENERATOR DIVISION

“0 E HOBARr BROTHERS COMPANY B. B,,++--

May 12/75

FOBART 0 %

pMOTOR GENERATOR DIVISION HOBART BROTHERS COMPANY

“0 QQ i % 4.,,,+++

FIGURE HOBART

ITEM NO. PART NO.

5- 37

3 7

39

40

41 t

* 42

43

44

45

46

47

48

* 49 * 50

51

52

53

54

55

56

57

58

59 60

61

62

63

64

65

66

67

68

May 12/f5

4oJ -90

400MS -58

363769-3

50MS -696

1 OOMS -36

w-9350-73

40191 l-5

200MS -145

2ooMS -143

400589-5

16DA-1626-4

200MS -140

60GH P-424

4OOMS -62

50MS -472

400MS -23A

4ooMS -19

4ooMS -17

363769-4

FW-3294B

4ooMS -9

lOOMS-358

1 OOMS -6

lOOMS-141

lOOMS-117

lOOMS-137

DATA-1330A

1 OOMS -349

404065- 1

1 OOMS -382

2OOMS -116

6FW-557A

NOMENCLATURE UN ITS

1234567 EFF A:&

LINK, CHANGEOVER

: BUS, JUMPER, CONTACTOR TO CHANGE-

OVER

. INSU lATOR, SHAFT

CONTACT, AUXILIARY, MOVABLE, ASSY

: CONTACT, AUXILIARY, STATIONARY,

ASSEMBLY

CABLE #185

: STRIP, TERMINALV88223, No. 441-5

STOP, MOVABLE, MAGNETIC YOKE

: YOKE, MAGNETIC, MOVABLE, ASSY

STRIP, TERMINAL V98410, No. 38012-

* 3820

REL4Y V77342, No. PR-2271-1

: YOKE, MAGNETIC STATIONARY

CLAMP, CABLE

: BRACKET, CABLE

. SUPPORT, SINGLE, BEARING

SHAFT, ARMATURE, LINE SWITCH

: SLEEVE, ROCKERARM

SUPPORT, ROCKER ARM

: INSULATCR, SHAFT

STRAP, CONNECTING MOVABLE CON-

’ TACT

. BUS, CONNECTING CONTACTOR

CYLINDER, COIL, BLOWOUT

: WASHER, COIL BLOWOUT

YOKE, MAGNETIC, MOVABLE ASSY

: STOP, MOVABiE, MAGNETIC YOKE

YOKE, MAGNETIC, STATIONARY,

’ ASSY

COIL, NVR

: BUS, STUD TO BLOWOUTCOIL

RECTIFIER, SILICON V04713,

’ No. SDA10270-1

MOUNT, SINGLE, MOVABLE CON-

* TACT ASSEMBLY

CONTACT

: COIL, BLOWOUT

I

6

3

2

1

1

1

1

1

1

2

2

1

2

4

6 1

6

12

2

2

2

2

3

1

6

12

6

4-3

Page 13

4-3

Page 14


May 12/7’S

FIGURE HOBART

ITEM N 0. PART N 0.

5- 69 lOOMS-146

70 W-2974-F

71 400078

7? 400092

73 400097

74 400098

75 1 OOMS -79

* 76 W-9234- 145 * 77 W-9234-112 * 78 W-9760-4

* 79 W-9648-226

* 80 w-9350-75

May 12/?‘5

N OMENC LATURE

1234567

SHIELD, ARC

: RES ISTOR V44655, No. 09608

BRACKET, MTG., RES ISTOR

’ V44655, No. 12

. NAME PLATE, Ll

. NAMEPLATE, L2

NAMEPlATE, L3

: INSULATOR, CYLINDER, COIL

. CABLE, b4, 105, 106

. CABLE, #llO

CABLE, MOTOR STATOR

l EXTENSION

CABLE, GENERATOR STATOR

’ EXTENSION

. CABLE, #ill

UN ITS

EFF !%Y

6

1

12

12

ABCDEGHJ KL 1

I

4-3

Page 15

GENERATOR DIVISION HOwaT BROTHERS COMPANY

Drip-Proof Panel Assembly

Figure 6

4-3 May 12p5

Page 16

FIGURE PART

ITEM NO.. NUMBER

6- 50N H-703-0

* 1’

2

3

4 *

5

6

7

8

9

10

11

12

13

14

15

16

50N H -832

50N H -435

40191 l-5

50N H -436

3 80435

40191 l-8

w-9701 -4

50N H -978

50N H -977

50N H -976

50N H -979

50N H -827

No Number

No Number

No Number

No Number

50NH -828

May 12/?‘5

r/y,’ - ,3,, ,‘,’


NOMENCLATURE

1234567

PANEL, ASSEMBLY, DRIP-PRuOF (For NHA See Fig. 3)

. STRIP, INSULATING

. NAMEPLATE, REMOTE-START-STOP

. STRIP, TERMINAL V88223, No. 441-5

. NAMEPLATE, REMOTE, ON-OFF

. TOP, PANEL, DRIP-PROOF



. PANE L, DRIP-PROOF RIGHT

. PANEL, DRIP-PROOF, REAR

. PANEL, DRIP-PROOF, FRONT

. PANEL, DRIP-PROOF, LEFT

. BOARD, ASSEMBLY, TERMINAL

. . SCREW, 3/8-16 X 2 HHC (STEEL)

. . WASHER, FLAT 3/8 (STEEL)

. . WASHER, LOCK, 3/8 (STEEL)

. . NUT, HEX HD. 3/8-16 (STEEL)

. . BOARD

I

UN ITS

EFF A!&

REF

1

1

2

1

1

1

1

1

1

1

1

1

24

24 24

24

1

4-3

Page 17

FIGURE

ITEM NO.

7-

1 ’

2

HOBART

PART NO.

N o. N umber

3

4

5

6

7

5CN H-130

3 80524-2

3 80527-2

380524- 1

380527- 1

381649-l

382432- 1

380376- 1

5ONH-1015-l

3 80943

5BJ -32

5BJ -32

5BJ -34

5BJ -33

5BJ-35

2CRT-352- 1

8

9

10

11

12,

2ORT-353- 1

3 80942

403982

13

14

15

16

17

18

19

20

* 21

W-10072-1

380526-2

3 80530-4

380526-l

3 80530- 1

5CNH-54

50NH-840

HF-879

DW-883

DW-882A

DATA-2033

50N H -43

5oN H -42

W-l 0079-3

May 12/75

Aug 20/75 Revised *

FOBART

8 x

QD

.gMOTOR GENERATOR DIVISION

,= HOBART BROTHERS COMPANY “c

b . B ,J

NOMENCLATURE

1234567

MOTOR-GENERATOR GROUP (For NHA

See Fig. 3)

. GUARD, FAN

. H OUS IN G & STATOR ASSY (MOTOR)

. HOUS ING & STATOR ASSY (MOTOR)

. HOUSING & STATOR ASSY (MOTOR)

HOUS IN G & STATOR ASSY

: ARMATURE ASSEMB LY

(MOTOR)

ARMATURE ASSE MB LY

: ARMATURE ASSEMB LY

. ARMATURE ASSEMBLY

EXCITER ASSEMBLY, BRUSHLESS

: : EXCITER ASSEMBLY, BRUSHLESS

EXCITER ASSEMBLY, BRUSHLESS

: : . BASE ASSEMBLY, MOUNTING

. . . PLATE, INSULATING

BAR, BUS, CONNECTING

’ : : DIODE, POS IT IVE

DIODES

. V58849,

N o. 92429-AF

. . . D IODE, NEGATIVE V58849,

N o . 92429-C F

. . . BRACKET, MOUNTING, MICRO

SWITCH

SWITCH, MICRO V91929,

’ l ‘No. BZ-2RD

. BEARING V76062, No. 310-SFFC

. CAP, BEARING

. HOUSING & STATOR ASSY (GENERATOR)

. HOUS IN G & STATOR ASSY (GENERATOR)

HOUS IN G & STATOR ASSY (GENERATOR)

: HOUSING & STATOR ASSY,(GENERATOR)

. COVER,, HOUSING, EXCITER

COVER, SCREEN

: WASHER, RETAINING, BEARING

. GASKET

. FELD

. INSULATION

. POLEPECE

CONNECTOR, BOX, STRAIGHT, 3/4,

l V03743, N o. 7289V (One required for

generator, two required for motor) (To

be used with flexible metallic electrical

conduit) I

. .,

‘., s_

UN ITS;

per ’

EFF pssy

REF. :

‘1

ABC :l

DEF 11

GHJ 1

KL ‘1

ABC 1

DEF 1

GHJ ,l

KL 1

ABCGHJ ,l

ABCGHJ 1

DEFKL ‘2

I1

1

2

3

3

ABCGHJ ‘2

ABCGHJ 2

2

‘2

ABC 1

DEF 1

GHJ 1

KL 1

2

2

2

2

2 SETS

8

8

,3 :

4-3 1

Page 19’

4-3

Page 20

FOBAR’t

B z

QD

;MOTOR GENERATOR DIVISION a HOBART BROTHERS COMPAN”

“0 2

b . LI ,,+**

May 12/75

,** FOBART __ ‘-

I z

QD


“c I HOBART BROTHERS COMPANY

*c a’ Q. I,t+

FIGURE HOBART

ITEM NO. PART N 0.

*7- 22 W-10088-3

N OMENC LATURE

-.. “.., , . . . .

UN ITS ~

1234567 EFF AGrY ;

CONNECTOR, BOX, 90’ V03743,

’ No. 7382V (To be used with flexible

metallic electrical conduit)

CONNECTOR, BOX, 90’ V03743,

l No. 7382V (To be used with flexible

metallic electrical conduit)

I

W- 10088-3

* 23 w- 10079-5

w-10079-5

* 24 50NH-641

25 387168

26 386635A

27 386634A

May 12/?‘5

Aug 20/75 Revised

. CONNECTOR, BOX, l-1/4, V03743,

No. 7484 (Four required on generator,

two required on motor) (To be used with

flexible metallic electrical conduit)

CONNECTOR, BOX, l-1/4, V03743,

’ No. 7484 (T wo required on generator,

two required on motor) (To be used with

flexible metallic electrical conduit)

CONDUIT, ELECTRICAL (MOTOR-

* GENERATOR)

. PLATE, WASHER, HOUS IN G

‘PAD, VIBRATION, TOP

: PAD, VIBRATION, BOTTOM

ABC 7 /

DEFGHJKL 2

ABCDEF 6

GHJKL 4

1

4 : 4 :

8

4-3 .-.. -.-___,’

Page 21: i

HoBA’PT 4 z QD

;MOTOR GENERATOR DIVISION e HOBART BROTHERS COMPANY

% 5

B. &+


Figure 8 I

4-3

Pgge 22

May 12/f5

FCDBARI

e a

QD


‘c 2 +z. 0. B.0 d

FIGURE HOBART

ITEMNO. PART N 0.

8- 481051-2

1

2 ’

3

* 4

5

6 402 826

7

8 1 ODH -534

9 48064 1

10 1 OON H -330-O

11

12

13

14

15

16

li

18

19

20 50MS -209

21 DW-4691-l

22 481052

23 30GH -322

24 402 157

25 lOJ-178

26 HF-1459

27 400400

May 12/75 4-3

481051-l

402658

W-l 1166-4

H F-530

W-l 1250

W-9916-10

FW-1312

W-8105A-4

H F-745

16DA-2162

W-9712-6

W-8095A-8

W-8095A-4

48 1054

481056

48 1057

400847-2

N OMENC LATURE UN ITS

Per 1234567 EFF ASSY

BOX ASSEMBLY, CONTROL (For NHA

See Fig. 3) ABCDEF REF.

BOX ASSEMBLY, CONTROL (For NHA

See Fig. 3) GHJKL REF.

HOLDER, FUSE V71400, No. HKP-HH

: FUSE, AGC, 15A

2

2

KNOB, FASTENING, HINGED PANEL

: WASHER V24248, STYLE 7PT, #10014-11

2

2

. METER, FREQUENCY, V31356, No.

36-FX

SWITCH, AUTOMATIC-MANUAL, 4PDT,

’ V27191, No. 8926K425

SWITCH, PANEL LIGHT, DPST VO4009,

’ No. 80600

. NAMEPLATE, LIGHT, PANEL, ON-OFF

NAMEPLATE, AUTOMATIC, MANUAL

: LIGHT, PANEL V81091, No. 1339,

Mt. Strap No. 1354

VOLTMETER, O-300, AC V60741, No.

l 331LH

NAMEPLATE, REGULATOR RHEOSTAT

: KNOB, RHEOSTAT V44655, No. 5150

1

1

1

1

2

. RHE OSTAT, RE GU LATOR V44655,

Model No. H, 1500 Ohm, 25 W.

: AMMETER V60741, No. 331LH

AMMETER V60741, No. 331LH

: PANEL, HINGED, ASSEMBLY

PANE L, FRONT

: WRAPPER, CONlROL BOX, ASSY

LIGHT, PILOT, AMBER VT2765,

l N o. 5200-233-323

SWITCH, START-STOP ASSEMBLY

: NAMEPLATE, MOTOR

PANEL, INTERIOR (For Details See

’ Fig. 9)

PANEL, REAR

: RHEOSTAT, MANUAL, 75 OHM,

150 W V44655, &de I No. L

NAMEPLATE, FIELD RHEOSTAT

: SWITCH, METER, SELECTOR

VO4009, No. 81579

SWITCH, LINE DPDT V73559, No.

’ .2GL61 “TABS ” I

1

ABCDEF 1

GHJKL 1

1

1

1

1

Page 23

4-3

Page 24

HOBART e a

QD

~MOTOR GENERATOR DIVISION


b . LI ,,I++

May 12/f5

FIGURE HOBART

ITEM NO. PART N 0.

8- 28

* 29

30’

31

32

33 *

34

35

36

37

* 38

J( 39

y OEBART e a

QD


d HOBART BROTHERS COMPANY “0 b . I ,,R

N OMENC L4TURE

1234567 EFF

15GH -433

W-10051-6

H F-478

DW-4691-2

lODH-664

75 -597-6

H F-25 18-9

FW-3399

1 OOGH -2 16-2

401864

5ON H -642

NAMEPLATE, METER SELECTOR SWITCH

: CLAMP,WIRE V81074, No. EC-7

De leted

SWITCH, ON-OFF, ASSEMBLY

: NAMEPLATE, GENERATOR

. NAMEPLATE, 400CYCLE

. NAME PLATE, RECEPTACLE

LIGHT, PILOT, GREEN

: RECEPTACLE, DUPLEX

. CHAIN, SUPPORT, HINGED DOOR

NAMEPLATE, RATING

: ADAPTER, CONDU IT

I

UN ITS

A&

1

2

May 12/f5

Aug 20/75 Revised

pf/; .- ;. *; :‘,

4-3

Page 25

HOBART I a ‘0 QQ

;MOTOR GENERATOR DIVISION .


4? *. B,lT 8

Interior Patie I Assembly

Figure 9

4-3

Page 26

i ’

Ma-y 12/?‘5

FOBART z :: QQ

;MOTOR GENERATOR DlVlSlON HOBART BROTHERS COMPANY

“0 i 42 Q . B ,J

FIGURE HOBART

ITEM NO. PART N 0.

9- 481052

1 ’ 383766

2

3

4

1 ODH-845-0

1 ODH -847-2

400540-3

5 W-2974-F

6 W-2974-L

7 400078

8 404065-l

9 lODH-696-3

10

11 * 12

13

75NH-110

lOOGH-142

403336

FW-1312

14 387725

15 16DA-4052-0

* 16 363771-5

17 16DA-4004A-3

18 16DA-4253-1

19 40191 l-20

20 W-454 1 D

21 481053

N OMENC LATURE UN ITS

1234567 EFF . AgrY

PANEL ASSEMBLY, INTERIOR (For NHA

See Fig. 8)

. RE IAY, OVERVOLTAGE

RE LAY, UN DERVO LTAGE

: RELAY, UNDERFREQUENCY

RELAY, OVER LOAD VO1121,

l No. NN-1

RESISTOR V44655, No. 0960B,

l 250 Oh m, 100 W

RES ISTOR V44655, No. 0959,

’ 50 Ohm, 100 W

. BRACKET, MOUNTING, RESISTOR

V44655, No. 12

RECTIFIER, S ILICON V04713,

l No. SDA10270-1

. RELAY, TIME DE LAY V93929,

Type TF-10, 115 Volt Heater

. BRACKET, MOUNTING, RELAY

BRACKET, MOUNTING, SWITCH

: RING, LOCKING, SWITCH V91929,

No. TS 10020

SWITCH, TOGGLE VO4009, No.

’ 80600-BJ

. BRACKET, MOUNTING, SOCKET,

RELAY

SOCKET, RELAY .VO2660, No.

’ 77-MIP-11

SLEEVING, PLASTIC

: RELAY, PLUG, INTERLOCK, 24 V.

V77342, No. KAP-14DG

. SPRING, RETAINER, RELAY V77342,

No. 2OC206

STRIP, TERMINAL V88223, No. 441-20

: RESISTOR, V44655, No. 0368

. PANE L, INTER IOR

REF.

1

1

1

1

1

1

4

2

1

1

2

1

4

1

May 12p5 4-3

Page 27

4-3

Page 28

MOTOR GEN ERATOR DIVISION HOBART BROTHERS COMPANY

Regulator Box Group

Figure 10 I

May 12p5

FOBART 8 t QQ ;MOTOR GENERATOR DIVISION

d HOBART BROTHERS COMPANY “a

%. BA,\++

FIGURE PART

ITEM NO. NUMBER

lo-

I

* 1

2 I 3

4

5

6

NOMENCLATURE

1234567 EFF

No Number

50NH-829

430278

5ONH-831

430293

50N H -830

5ON H -834

50N H -707

50N H -708

BOX, REGULATOR, GROUP (For NHA

See Fig. 3)

. BOX, STATIC, EXCITER, ASSEMBLY

. . GROMMET, RUBBER V89616, No. TPRh812

. . PANEL, FRONT

. . REGULATOR, MAGNETIC, AMP

(For- Details See Fig. 11)

. . BOX, S.A.

. SUPPORT, SLIDING ASSEMBLY

. . BASE, MOUN TIN G

. . SUPPORT, S-A.

UN ITS

Per ASSY

REF

1

1

1

May 12/?‘5

Aug 2O/f5 Revised

Tfi/ -5 f- u c’

4-3

Page 29

4-3

Page 30

FOBART z QQ

;UOTOR GENERATOR DIVISION z : HOBART BROTHERS COMPANY “c 2

4G . B ,&

‘O-48

Magnetic Amp Regulator

Figure 11

May 12p5

FIGURE HOBART

ITEM NO. PART NO.

FoBART I f

iMOTOR GENERATOR DIVISION HOBART BROTHERS COMPAN”

“0 QQ 2 46

Q. 0.v 6

ll-

1’

2 I

3

* 4

5

6

7 lCZ-22B

* 8 400033

9 1C Z-63

10 lCZ-60 . . TRANSFORMER, DAMPING Chicago

11 430191

12 1C Z-35B

13 401563-3

14

15 lCZ-156

16 W-9746-2

17 lCZ-74

18 401563-2

19 40 1564-2

20

21

22

May 12/75

430293

lCZ-134A

lCZ-132

430297

lCZ-62

400034

400035

FW-1507

401564-3

430222

430183

430224

lCZ-63

N OMENC LATURE

1234567

REGU LATOR , MAGNETIC, AMP (For

NHA See Fig. 10)

. REACTOR, RE GU iATCR , 300 VA

Chicago Electronic Engineering Co.

TRANSFORMER, POWER, 300 VA

’ Ch’ lcago E lectron ic Engineering Co.

. AMPLIFIER, FIRST STAGE SA

. . REACTOR, FIRST STAGE Chicago

Electronic Engineering Co.

. . TUBE, HOLDER V71785, No. 7XBl

TUBE, COVER V71785, No. 754

: : GROMMET, RUBBER V79497,

No. 61068

BOARD, TERMINAL, FIRST STAGE

.’ . ASSEMBLY

TUBE, 6627, CBS HYTRON 928fiA

’ l CR EQUIV. V80368,No.JANOBZWA

l l

CHOKE, FILTER, FIRST STAGE

Ch. Icago E lectronic Engineering Co.

E -366 1 -A

Electronic Engineering Co.No.E-3196A

. . CHASSIS, FIRSTSTAGE

. . INSULATOR, PLATE

. . HOUSING, PIN CONNECTOR VO0779

No. 1-480386-O

. . HOUSING, SOCKETCONNECTOR

VO0779, No. l-480285-0

INSULATOR

. l RES ISTOR, 750, 25 W V44655, No.

l l 0203

. . INSULATOR

. . HOUS IN G, PIN CONNECTOR VO0779,

No. l-480284-0

. . HOUSING, SOCKET CONNECTOR

VO0779, N o. l-480283-0

. SENS ING, H IGH PHASE SA

. . INSULATOR, BOARD

. . BOARD, HIGH PHASE SENSING ASSY

. . CHOKE, H IGH PHASE FILTER Chicago

Electronic Engineering Company, No.

E -366 1 -A

UN ITS

Per EFF ASSY

REF.

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

4

4-3

Page 31

4-3

Page 32

FOBART P a QQ


i HOBART BROTHERS COMPANY b 4k * . 6 g.0

May 12p5

FOBART e z QQ

iMOTOR GENERATOR DIVISION -

“c 2 HOBART BROTHERS COMPANY

% *. *,I> 6

FIGURE HOBART

ITEM NO. PART NO.

ll- 23

24’

25

26

27

28

29

30

31

32

33

34

35

36

lCZ-64

401563-2

401564-2

430223

16DA-2016-4

W-2974-L

W-l 1434

W-l 1166-l

430189

lCZ-226

W-9712-31

W-9712-29

lCZ-152

lCZ-75

lCZ-97

37 402680-20

38 lCZ-70

39 W-9746-l

40 lCZ-129

41 lCZ-128

42 W-l 1597

43 lCZ-105

44 401865 * 45 16DA-1997-4

46 W-l 1535

47 W-l 1534

May 12/75

NOMENCLATURE

1234567 EFF

TRANSFORMER, HIGH PHASE Chicago

. . Electronic Engineering Co. ,No.E3712

. . CONNECTOR, PIN HOUS ING VO0779,

No. l-480284-0

CONNECTOR, SOCKET HOUSING

l l VO0779, No. l-480283-0

CHASS IS, H IGH PHASE SENS ING

l F;EIAY V77342 No. PR2286-1

1 RES IST~ , 50 OHM, 100 WATT

V44655, No. 0959

. BASE, FUSE, BUSS #4407

. FUSE, BUSS #3 AG-2

CAB INET, RE GU LATCR

: PANEL, CONTROL ASSEMBLY

RHEOSTAT, MODE L SHA LO 5000

. l OHM, 25 WATT V44655, Model “H”

. . RHEOSTAT, MODEL SHALO, 750

OHM, 25 WATT, V44655, Mode I “H ”

. . NAMEPLATE

NAME PlATE , TERMINAL STRIP

: : REACTOR, LINE DROP, COMPENSA-

TION Chicago Electronic Engineering

Co., No. E-3963

. . TERMINAL STRIP V71785, No. 20-141

. . SWITCH, LINE DROP COMPENSATION

ON-OFF V27191, No. 7610 K2

RESISTOR, 50 OHM, 25 WATT

l l V44655, No. 0200D

INSULATOR , RES ISTOR

: : RHEOSTAT, TRIPLE TANDEM, 250

OHM, 25 WATT, TAPER WOUND

V44655, No. 45403

KNOB, POINTER, V75376, No.

� l S-292-31

. . RHEOSTAT, TRIPLE TANDEM 10 OHM,

25 WATT V44655, No. H-lo-F2-T3

NAMEPLATE, LINE COMPENSATION

: : BUTTON, PLUG V90763, No. SS-

48152

TERMINAL, FANN ING STRIP V71785,

l . No. 20-161-L

CABLE, CLAMP V71785, No. CC-161-

l l 12 I

UN ITS

A&

3

1

1

1 1

2

1

1

1

1

2

1

1

1

1

2

1

1

3

1

1

4-3

Page 33

4-3

Page 34

HOBART

e QQ :MOTOR GENERATOR DIVISION

:: : HOBART BROTHERS COMPANY “0 2

B . I ,,I++

May 12n5

FOBART

e f QQ

$a’lOTOR GENERATOR DIVISION

“0 I HOBART BROTHERS COMPANY ti

B . LI ,,d

N OMENC LATURE

FIGURE HOBART

IlEMNO. PART N 0. 1234567

ll- 48 16DA-1997-3 BUTTON, PLUG V90763,

46

l ’ No. SS-48192

lCZ-101 NAMEPLATE, ADJUST

50 1c z-74 : : INSULATOR EPOXY MICA 0012 ,

51 I W-9026-9 . . RESISTOR V44655, 3000 OHM,

10 WATT

52 400032 . . BRACKET, MTG. RESISTOR V44655

No. 5

53 430188 . i PANEL, CONlROL

May 12n5

UN ITS

EFF A%

1

1

3

1

2

1

I

4-3

Page 35

FOBART

z 5 QQ

;MOTOR GENERATOR DlVlSlON

“0 2 HOBART BROTHERS COMPANY

*F *. sh,+*

4-3

Page 36


Figure 12 I

May ‘lip5

j FOBAFt?

e :, QQ

iMOTOR GENERATOR DIVISION HOBART BROTHERS COMPANY

“0 : % c 0. #),I+

FIGURE HOBART

ITEM NO. PART NO.

NOMENCLATURE UN ITS

1234567 EFF ASP;?;

12- 481061-2

1 ’ 2

3

9

10 40191 l-8

11 75GH -566

12 75GH-49

13 75GH -50

14 W-l 1278-5

15 5CW-2127

16 lOOGH-112

17 5Cw-975

18 5CW-976A

19 W-l 1242-10

20 W-l 12546

21 W-l 1097-8

22 w-9549-19

23 DW-1704

24 A-25

25 W-l 1242-5

26 W- 11254-4

27 W- 11278-7

28 AW-626

29 lCZ-148

30 W- 11097-22

31 W- 11263-6 * 32 w- 10079-5

33 5ONH-815

May 12n5

481061-l

381081

381082

381083

381084

75GH -48

75GH -47

75GH -46

75GH-51

15GH-519-2

15GH-519-1

400589-5

MODULE ASSY, POWER (For NHA See

Fig. 3) ABCDEF

MODULE ASSY, POWER (For NHA See

Fig. 3) GHJ KL

COVER, OUTPUT TERMINAL

: . COVER, OUTPUT TERMINAL

. . HINGE, COVER

BRACKET, MTG., COVER, OUTPUT

. TERMINALS

. NAMEPLATE, C

. NAMEPLATE, B

. NAMEPlATE, A

. NAMEPLATE, N

. TRANSFORMER, CURRENT

. TRANSFORMER, CURRENT

. STRIP, TERMINAL V98410, No.

38012-3820

ABCDEF

GHJ KL

. STRIP, TERMINAL V88223, No.

441-8

. CONTACTOR V74063, No. A-874C

. NAMEPLATE, E

. NAMEPLATE, F

NUT, 3/8-16, HEX, ST.

: BUSHING

. TERMINAL, OUTPUT

. BUSHING, INSULATOR

. WASHER, INSULATOR

WASHER, 3/8 FL. ST.

: WASHER, LOCK, 3/8, ST.

. SCREW, 3,‘8-16 X 2, HHCS, ST.

. STUD

. BUSHING

. WASHER, INSULATOR V89873

WASHER, l/4, FL., ST.

: WASHER, l/4, LOCK, ST.

NUT, l/4, l/4 HEX, ST.

: BUSHING

. TRANSFORMER, CURRENT V14831,

No. E-6170

SCREW 3/8-16 X 2, HHCS, ST.

: WASHER, LOCK, 3/8, ST.

. CONNECTOR, CONDUIT, l-1/4

. BAR, BUS I

REF.

REF.

1

1

1

1

1

1

1

1

14

4

4

4

8

18

17

7

2

2

12

4

1

4

3

1

1

2

3

4-3

Page 37

FCDBARZ

z QQ ;MOTOR GENERATOR DIVISION

f : z HOBART BROTHERS COMPANY

“c

b. s,,\@-

Page 38

’ May 12n5

YOBAR’G:

e z QQ

jMOTOR GENERATOR DIVISION

i HOBART BROTHERS COMPANY “c b . I) ,,R

N OME NC lATURE UN ITS FIGURE HOBART

ITEM NO. PART NO. 1234567 EFF ASP;?;

12- 34 381086

36 33

w- 11097-3 :

BOX, POWER MODULE 1 SCREW, 3/8-16 x l-1/4 HHC, ST.

W-11242-12 WASHER, FLAT, l/2, ST. : * 37 TRY-154-l : CAPACITOR V14101, No. 2OOP1868,

’

3MFD, 660 V. F 1

* 38 TRY-174-3 . BRACKET, MTG., CAPACITOR V14101,

Type 3-36-161, No. 2OOP1823 F 1

May 12n5

I

4-3

Page 39

FOBART

e I ; QQ

;MOTOR GENERATOR DIVISION -


46 Q. B&O 6

24.

25

Mounting Frame & Trailer Group

Figure 13 I

May 12n5 4-3

Page 40

FOBART

s a QQ

yMOTOR GENERATOR DIVISION HOBART BROTHERS COMPANY

“0 i 46 *. BL,l~e

FIGURE HOBART

ITEM NO. PART NO.

13- No Number

1 ’ 60GH-92

2

3 ,

4

5

6

7 HF-1882

8 HF-1900

9

10

11

12 * 13

* 14 DW-3342

15 H F-2266

16 W-9558-l 0

17 5ONH-196

* 18 12CW-869

19 12CW-873

20 12C W-880

21 12CW-871

22 5CN H-142

23 H F-2698

24 12CW-882

25 xw-930

May 12/“75

50N H -743

381090

W-4460B -26

6FW-5937-2

50NH-191

5CNH-150

50NH-151

50NH-152

HF-1902

HF-1899

HF-1885

50NH-194 12CW-870

DW-4 135

N OME NC LATURE

1234567 EFF

MOUNTING FRAME & TRAILER

GROUP (For NHA See Fig. 1)

. YOKE ASSEMBLY, LIFTING

FRAME ASSEMBLY, MOUNTING

: SUPPORT, MOUNTING, CONTROL

BOX, REGULATOR 8, POWER MODULE

TRAILER ASSEMBLY (COMPLETE)

: . TRAILER ASSEMBLY

CEJ L

CEJ L

AXLE ASSEMBLY, REAR

: : : BRAKE ASSEMBLY

CEJ L

CEJ L

. . . . LEVER & BRAKE MOUNT ASSY CEJL

. . . . ANGLE ASSY, MOUNTING,

BRAKE SHOE CEJ L

. . . . SHOE ASSY, BRAKE CEJ L

. . . . ROD ADJUSTING BRAKE

(RIGHT HAND) CEJ L

. . . . ROD ADJUSTING BRAKE

(LEFT HAND) CEJ L

. . . . BRACKET, MOUNTING, BRAKE

SHOE ANGLE CEJ L

. . . . GLEVIS ASSEMBLY, ADJUST.

-BRAKE CEJ L

. . . AXLE ASSEMBLY, FRONT CEJ L

. . . . SPINDLE ASSY, RIGHT FRONT CEJL

. . . . BOLT, RADIUS ROD TO RADIUS

ARM(5/8x l8x2)CASTELNUT

(5/8 x 18) CEJ L

. . . . PIN, KING CEJ L

. . . . CLEVIS, TIE ROD TOSPINDLE CEJL

. . . . ROD, TIE CEJ L

. . . . AXLE, FRONT CEJ L

. . . . BOLT, HITCH CEJ L

. . . . HITCH ASSY, TRAILER CEJ L

. . . . BLOCK, MTG., TIE ROD CEJL

SPINDLE ASSY, LEFT, FRONT CEJL

1 1 1 ~HANNE L, MTG. FRONT AXE

TO FRAME CEJ L

SHAFT, PIN ION, FRONT AXLE

: : : TONGUE, TRAILER CEJ L

CEJ L

. . . CUP, BEARING V60038, No.

T-50,000 CEJ L

I

UN ITS

A”s’u

REF.

1

1

1

1

4

1

1

2

2 1

1

2

2

2

2

1

1

1

2

1

4

4-3

Page 41

4-3

Page 42

~ORAR~

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“c d HOBART BROTHERS COMPANY

46 0. 8.0 8

May 12p5

FIGURE HOBART

ITEMNO. PART N 0.

13- 26 5C W-927

271 5CW-928

28 5C W-929

FOBARX

I ::


“c QQ 2 HOBART BROTHERS COMPANY

46 8 Q. II,>\

29

30

31 * 32

33

34

35 400238

36 400599

W-l 1242-15 W- 11275-4 5C W-260$,

12CW-1232

5C W-2402-0

5CW-246 1A 430468

NOMENCLATURE

1234567 EFF

. . . CUP , BEAR IN G V60038,

No. 14275

. . . CONE , BEAR IN G V60038,

No. 14136A

CONE, BEAR IN G V60038,

. . l No. 14137A

WASHER, BEAR IN G

: : : NUT, FASTENING, AXLE

CAP, HUB

: : : PIN, TRAILER TONGUE

CEJ L

CEJ L

CEJ L

CEJ L

CEJ L

CEJ L

CEJ L . . . WHEEL&HUB6X9 CEJ L

. . . . HUB, WHEE L CEJ L

. . . . WHEEL, SPLIT (One disc required

with hole for valve stem, one

disc required without hole) CEJ L

. . . . TIRE, 6:90/6:00 x 9, 6 Ply, or equiv. CEJ L

. . . . TUBE CEJ L

UN ITS

A&

8

4

1

1 1

I

4-3

Page 43

MOTOR GENERATOR DIVISION HOBART BROTHERS COMPANY

.I

Power Factor Correction Capacitors

(Specs 4713A, Var. 5)

Figure 14 I

4-3

Page 44

T,/ i u 5 ,i,J

May 12/‘75

Revised Aug 2Ofl5

rOBART

8 f QQ


“c i HOBART BROTHERS COMPANY

48 ‘* Q. .gkO Addendum Sheet

Specs 4713A, Var. 5

FIGURE HOBART

ITEMNO. PART NO.

14- No Number

I 1 5CNH-1196

2 3OGH-1037-1

3 5ONH-1193

4 402037-9

N OME NC LATURE

1234567

POWER FACTOR CORRECTION CAPACITORS

(Mounted ins ide of mounting frame)

LID, BOX, CAPACITOR

: CAPACITOR, V14655, 34 MFD, 400 CYC.,

220 v.

BOX, CAPAC ITOR

: GROMMET, RUBBER V02231, No. AGW-4211

I

Aug 20/75

UN ITS

A&

‘1

.1

16

1

‘2

Page 45

FOBART

e, QQ ;MOTOR GENERATOR DIVISION

c p: 2 HOBART BROTHERS COMPANY

“0

%. ,,,I6

I

4-3

Page 46

,-

Aug 20/75

- -... ~. __. _. -

YOBAR?

e QQ :MOTOR GENERATOR DIVISION

z s 2 HOBART BROTHERS COMPANY

“c

% . 8 @--

ADDENDUM

to

4713A INSTRUCTION S TM-318

for

4713A - Variation 4

with

PHASE REVERSAL RELAY

(For machines connected for 460-V input only)

The generator set identified as Specification No. 4713A-Variation 4 is equipped

with a phase reversal relay which prevents operation of the motor (and generator)

in a reverse direction. This feature is very useful especially when the generator

set is moved and reconnected frequently.

The relay is connected in the motor start circuit to prevent the motor from starting

if input power is connected in a reverse phase sequence.

If the motor will not start when the START switch is pushed, reverse the connection

of any two of the three input cables (Ll, L2, L3) to connect forproper phase sequence

and motor rotation.

TM-318 / 020674 / OPERATION AND MAINTENANCE MANUAL ... · SAFETY INSTRUCTIONS AND WARNINGS FOR...

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Transcript of TM-318 / 020674 / OPERATION AND MAINTENANCE MANUAL ... · SAFETY INSTRUCTIONS AND WARNINGS FOR...