Fiat 780 | 780DT | 880 - Tractor Manuals | Tractor Parts ......101 - ENGINE - Engine Block -...
Transcript of Fiat 780 | 780DT | 880 - Tractor Manuals | Tractor Parts ......101 - ENGINE - Engine Block -...
FI-S-780+
FFiiaatt Service Manual
780, 780DT, 880,880DT, 880-5, 880DT-5,
980, 980DTTechnical Specs Only
Chassis Only
THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF FIAT OR IT’S SUCCESSORS. FIAT AND IT’S SUCCESSORS
ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.
TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.
Serv
ice
Man
ual
FiatTrattori ,.IIIi1B
7BO-780DT 880-880DT
QUICK REFERENCE INDEX
Section
GENERAL . ... A
SPECIFICATION 00
WORKSHOP ENGINE . . . 10
MANUAL POWER TRAIN 20
FRONT AXLE
- STEERING. 30
LIVE FRONT AXLE 40
LIFT UNIT . . . . 50
ELECTRICAL SYSTEM . 60
SERVICE TOOLS . . . 90
DIREZ/ONE COMMERCIALE
Fiat Trattori GENERAL: A 780-880 Contents
page 3
CONTENTS
A - GENERAL . ....
00 - SPECIFICATION
Page
6-7-8-9-10
Identification data - Weights 1 Engine .. 2-3-4 Power Train - Brakes - Steering - Front
Axle. 4 Drive Train Diagrams . 5-6-7-11-12 Front Axle - Rear Wheels - Power Take
Off 8 Lift - Towing Attachments 8 Ballasting - Body - Electrical System 9 Lighting - Instruments and Accessories-
Tyre Size 10 Dimensions • 13 Capacities 14
10 - ENGINE - Specification and Data
Engine Block - Cylinder Head • 1 Crank Gear 2-3-4 Crank Gear 5 Valve Gear 6 Valve Gear 7-8 Lubrication System 8 Cooling System • 9 Fuel System 10-11-12-13-14-15 Tightening Torque Figures ... 16 Longitudinal Section through Engine - 780 Tractor 17 - 880 Tractor 18 Fuel System. 19
Dale
IV-1981
X-1979 IV-1981
IV-1981 IV-1981
X-1979 X-1979 X-1979
X-1979 IV-1981 IV-1981
X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979
X-1979 X-1979
IV-1981
100 - ENGINE - Description - Performance Data -To Remove - To Refit
Description • • . • • • Performance Data. • • Compression Test •• To Remove - To Refit
2-3 4
4-5
X-1979 IV-1981 IV-1981 IV-1981
101 - ENGINE - Engine Block - Cylinder Head
Cylinder Liners Cylinder Head
102 - ENGINE - Valve Gear
Camshaft - Valves, Guides and Springs Tappets, Pushrods and Rockers Valve Timing Gear Train . • . .
103 - ENGINE - Crank Gear
Crankshaft . • . . • • . . • . • Main and Big-End Bearings and Caps Pistons and Rings Connecting Rods Flywheel ..•••
1-2 I X-1979 3-4 IV-1981
1 2 3
1 2 3 4 5
X-1979 X-1979 X-1979
X-1979 X-1979 X-1979 X-1979 X-1979
Page
Dynamic Balancer - 780 Tractor - 880 Tractor
104 - ENGINE - Fuel System
Not available
105 - ENGINE - Lubrication System
Lubrication System Diagram - 780 Tractor ..••••• - 880 Tractor .••....••.•• Oil Pump - Oil Filter - Oil Pressure
Warning System . . • • . • . • . •
106 - ENGINE - Cooling System
Cooling System Diagram . . • • • • • Description - Water Pump .•.••• Radiator •.••.•••....•.. To Adjust Belt Tension - Water Tempe
rature Gauge - Thermostat. • • • •
6 7-8
1 2
3
2 3
4
Dale
X-1979 X-1979
X-1979 X-1979
X-1979
X-1979 X-1979 X-1979
X-1979
20 - POWER TRAIN - Specification and Data
Clutches 1-2-3-4 X-1979 Gearbox and Splitter 4-5-6 X-1979 Crawler Gear 6 X-1979 Rear Bevel Drive and Differential 7 IV-1981 Brakes 8-9 IV-1981 Final Drives . 9 X-1979 Power Take Off • 9-10 X-1979 Tightening Torque Figures 11-12 X-1979 Cross Section through Power Train - 780 Tractor . . .. 13 IV-1981 - 880 Tractor .. 14 IV-1981 Longitudinal Section through Power
Train - 780 Tractor 15 X-1979 - 880 Tractor 16 X-1979
200 - POWER TRAIN - To Remove and Refit
Control Platform ••••••••••
201 - POWER TRAIN - Clutch
To Remove and Refit •.• To Overhaul Ferodo Clutch To Adjust Ferodo Clutch • To Adjust Ferodo Clutch . Luk or O.M.G. Clutches. • To Overhaul Luk or O.M.G. Clutches To Adjust Luk or O.M.G. Clutches To Adjust Clutch Linkage •••••
1 I X-1979
1 2-3-4
4 5 6
7-8 8-9 10
X-1979 X-1979 X-1979
IV-1981 IV-1981 X-1979 X-1979 X-1979
Print No. 603.54.201/01 - IV-1981
A GENERAL:
page 4 Contents
202 - POWER TRAIN - Gearbox and Splitter Page Date
To Remove - To Refit - To Dismantle Sections through Gearbox
1-2-7 X-1979
- 780, 8-speed • • • 3 - 880, a-speed, AM 4 - 780, 12-speed " 5 - 880, 12-speed, PM 6 To Inspect - To Reassemble 7-8-9 To Adjust Gearbox, 880 Tractor 10-11-12-13-14-15
203 - POWER TRAIN - Crawler Gear Description - Overhaul, 8-speed Trans-
mission ••••••• • • • • • •• 1-2 Description - Overhaul, 12-speed Trans-
mission ••••• • • • • • • • • • 3
X-1979 X-1979 X-1979 X-1979 X-1979 X-1979
X-1979
X-1979
204 - POWER TRAIN - Rear Bevel Drive and Differential To Remove - To Refit - To Dismantle -
To Reassemble •••••••••• 1 To Adjust Bevel Drive •• 2-3-4-5-7-8-9-10-11 Sections through Bevel Drive and Diffe-
rential • • • • • • • • • • • • • • • 6 To Adjust Differential. • • • • • • • • 11-12 To Reassemble and Readjust Differential
Lock. • • • • • • • • • • • • • •• 12 To Adjust Differential Lock Control Pedal 13
205 - POWER TRAIN - Brakes Operation ••••• · .. 1 To Dismantle and Reassemble Brake
Units .... · . . 2 To Dismantle and Reassemble Master
Cylinder . . . . . . · ... 3 To Adjust the Pedals • . . · ... 4 To Reinstall the Pedals - To Bleed the
System ... · .. 5 To Bench Test Master Cylinder. 6-7 Parking Brake • • • · a
206 - POWER TRAIN - Final Drives To Remove To Refit •••••••••••••••• ~ I 207 - POWER TRAIN - Power Take-Off To Remove - To Refit ••••• To Dismantle - To Reassemble •••• 2~ I
X-1979 X-1979
X-1979 X-1979
X-1979 X-1979
IV-1981
IV-1981
IV-1981 IV-1981
X-1979 X-1979 X-1979
X-1979 X-1979
X-1979 X-1979
208 - POWER TRAIN - Reverses Main Data - Tightening Torque Figures Description • • • • • • • • • • • • • • Overhaul •••••••••••••••
1 IIV-1981 2 IV-1981 3 IV-1981
30 - FRONT AXLE - STEERING - Specification and Data Front Axle •••••••••••• Manual Steering - Power Steering Tightening Torque Figures
DIREZIONE COMMERCIALE
1 I X-1979 2~-4 IV-1981
5 IV-1981
301 - FRONT AXLE - STEERING - Front Axle Page Date
To Remove and Refit Axle Beam - To Overhaul Axle Arms •
To Inspect •••••••••••••• 1 IIV-1981 2 IV-1981
302 - FRONT AXLE - STEERING - Manual Steering
To Overhaul Steering Box Linkage •••••••••• ~ I X-1979
X-1979
303 - FRONT AXLE - STEERING - Power Steering
To Overhaul Power Steering • • • • • 1 To Overhaul Power Cylinder • • • •• 2 To Overhaul Steering Pump and Reser-
voir - To Bleed the System 3 To Adjust the Valves • • • • • • 4 To Adjust the Valves • • • • • • 5 Fault Finding Chart • • • • • • • 6-7 Operation Diagram and Section • 9
X-1979 X-1979
X-1979 X-1979 X-1979 X-1979 X-1979
40 - LIVE FR!lNT AXLE - Specification and Data
Front Axle •••••••••• Front Axle Drive - Drive Shaft Tightening Torque Figures • •
1-2: IIV-1981 IV-1981 IV-1981
401 - LIVE FRONT AXLE - Front Axle
To Remove - To Overhaul Final Drives Hubs and Steering Joints • • • •• 1-2
To Adjust King Pin Bearings - To Adjust Wheel Bearings • • • • • • • • •• 3-4
To Overhaul Bevel Drive and Differential 5 To Adjust Bevel Drive 6-7-8-9 To Adjust Differential. • • • • • • •• 10
X-1979
IV-1981 IV-1981 IV-1981 IV-1981
402 - LIVE FRONT AXLE - Drive Shafts - Axle Drive
To Remove and Refit Drive Shafts - To Dismantle Axle Drive •••••
To Reassemble Axle Drive • • • • Sections through Live Front Axle •
1 2 3
50 - LIFT UNIT - Specification and Data
Lift •••••••••• Lift Pump ••••••••• Implement Attachment • • Fault Finding Chart • • • • Tightening Torque Figures
501 - LIFT UNIT - Lift
Description • • • • • • • • To Remove - To Dismantle. Hydraulic System Diagrams • Lift Schematics To. Inspect • • To Reassemble
1-2 3-4
4 5 6
1 2 3 4 5 6
X-1979 X-1979
IV-1981
X-1979 IV-1981 X-1979 X-1979 X-1979
X-1979 X-1979
IV-1981 IV-1981 X-1979 X-1979
Fiat Trattori GENERAL: A 780-880 Contents page 5
Page
To Adjust ••••••••••••• 7-8-9-10 To Adjust. . • • • • • • • . . • • 11 To Adjust Relief and Cylinder Safety
Valves. • • • • • • 12 To Check Drain Valve • • • • • • •• 13
502 - LIFT UNIT - Lift Pump
To Overhaul •••••• Output Test - Oil Filter •
1-2 3
Date
X-1979 IV-1981
IV-1981 X-1979
X-1979 X-1979
503 - LIFT UNIT - Implement Attachment
Three-point Linkage - Draught Control. 1-2-3 I IV-1981 To Adjust Sensing Bar End Float. • • 4 IV-1981
504 - LIFT UNIT
SALAMI - Remote Control Valves
Main Data. • • • • • • • • 1 Tightening Torque Figures 1 To Dismantle.". • • • • • 2 Description and Operation 3 Relief Valve Adjustment. 4-5 Spool Return Test . 6 Spool Leakage Test. • • 7"
X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979
KONT AK - Remote Control Valves
Main Data •••.••••• Tightening Torque Figures To Dismantle ••..••• Description and Operation Relief Valve Check • Spool Return Test • Spool Leakage Test.
505 - LIFT - Auxiliary Cylinder
Main Data •••••••• Torque Figures • • • • • • Hydraulic System Diagram
Page
9 9
10 11-12
13 14 15
i I
Date
IV-1981 IV-1981 IV-1981 IV-1981 IV-1981 IV-1981 IV-1981
X-1979 X-1979 X-1979
60 - ELECTRICAL SYSTEM - Specification and Data
Charging System Starter - Marelli ••• - Bosch ••• Battery - Fuses Lighting - Signals - Accessories Starter Switch - Lighting Switch - Direc-
tion Light Switch Controls and Instruments. C.A.V. Start Retard Device Wiring Diagrams • • • • •
2-3 4-5-6-7
8 9
10 11 12
1:3-14
90 - SERVICE TOOLS . .1-2-3-4-5
X-1979
X-1979 X-1979 X-1979 X-1979
X-1979 X-1979 X-1979 X-1979
IV-1981
Print No. 603.54.201/01 - IV-1981
Fiat Trattori 00 SPECIFICA TION 780-880
IDENTIFICATION DATA Marketing Code - Rear wheel drive (RWD) - Live front axle (IF A) Engineering code: - 8-speed, rear wheel drive
(780 and 880 AM) - 12-speed, rear wheel drive
(780 and 880 AM) - 8-speed, four wheel drive
(780 and 880 AM) - 12-speed, four wheel drive
(780 and 880 AM) - 12-speed, rear wheel drive
(780 and 880 PM) - 16-speed, rear wheel drive
(780 and 880 PM) - 12-speed, four wheel drive
(780 and 880 PM) - 16-speed, four wheel drive
Engine type (all versions)
WEIGHTS (780 AM and 880)
~perating weight (includi~g .lift ~ ~~~: ~~g DT Implement attachment, sWinging / Mod 880 drawbar and ROP frame) Mod: 880 DT
WEIGHTS (780 PM) Operating weight wi~h I~ft, imple- ! Mod. 780 ment attachment, sWinging draw- Mod. 780 DT bar and ROP frame
(*) AM version 8 + 4 speeds
page 1
780 880 780 DT 880 DT
655.100.000 656.100.000 (*)
655.111.000 656.111.000
655.127.000 656.127.000 (*)
655.129.000 656.129.000
655.100.000 var. 720.286.040 656.100.000
655.100.000 var. 720.111.170 656.100.000 var. 720.111.150
655.127.000 var. 720.286.050 656.127.000
655.127.000 var. 720.111.170 656.127.000 var. 720.111.150 FIAT 8045.04.2 .. (with BOSCH PUl'l1p) FIAT OM C 03/75 FIAT 8045.04.3.. (with C.A.V. pump) (with C.A. V. pump)
kg 2440 2740
2530 2770
Ibs. 5380 6040
5580 6110
kg
2780 3080
Ibs.
6130 6790
Print No. 603.54.201 - X-1979
Fiat Trattori
780-880 102
ENGINE: Valve Gear
CAMSHAFT
To remove the camshaft take out screws (5) and withdraw thrust plate (7).
To inspect, place the camshaft over V-blocks and check journal eccentricity using a suitable dial gauge. Maximum allowance is .02 mm (.0008 in).
To straighten the camshaft use a press of adequate size for up to .2 mm (.008 in) distortion. If distortion exceeds .2 mm (.008 in), renew the camshaft without hesitation.
Section through Camshaft Drive a. Model 780 - b. Model 880 - 5. Retaining screw - 6. Drive gear -
7. Thrust plate- 8. Camshaft
:;
• 130
53.875 •
page 1
On Model 780, renew the bushes using suitable extractor and drivers.
After fitting, the new bushes must be reamed to size as prescribed in the illustration, using reamer A.390363 (293269).
VALVES, GUIDES AND SPRINGS
To remove and reinstall the valves use tool 291050.
If defective sealing is detected, grind in together with the seats using air grinder 290064 or hand grinder 290891. If necessary, re-cutthe valve seats as directed and grind the valves (page 2).
After grinding, check that the minimum land below valve head chamfer is not less than .5 mm (.020 in).
To remove and reinstall the valve guides, use driver 291046.
On Model 880, guides should protrude as indicated in Fig. b, page 3, Section 101.
Moreover, they should be a drive fit in their housings. If loose, they should be renewed without hesitation using oversize guides.
~ --- --- - -
49,450 49,475
~~" l)==tt=y--~ . .. - ~--- ---V----a
Camshaft, Journal and Housing Details
Note: Bush fitted 1.0. given (Model 780) a. Model 780 (with bushes) - b. Model 880 (no bushes)
b
Print No_ 603.54.20t - X-1979
Fiat Trattori 106 ENGINE: Cooling System 780-880
- Take out the shaft with attached bearing and fan hub using a suitable driver.
The water seal (5, page 2) should only be removed for replacement purposes when the carbon face in contact with the impeller bush is worn or damaged to the point of preventing efficient sealing.
On reassembly, note the following points:
- Bearing (2, page 2) is sealed and does not require lubrication.
- Impeller (7) must be fitted flush with the end of the shaft.
RADIATOR
The radiator cap houses a pressure release valve (13), set to .5 kg/cm2 (7 psi), and a vacuum release valve (14).
These valves should be checked periodically.
Removing Water Pump Impeller with Extractor 291182/1
7. Impeller
page 3
To recondition a furred radiator proceed as follows:
- Prepare a descaling solution using warm water and FIAT des caler in the proportion indicated on the container or 30 grams of bicarbonate of soda to each litre of water. If bicarbonate of soda is used, filter the solution prior to pouring.
- Pour the solution in the radiator, drain and rinse thoroughly.
To check the radiator for leakage, dip in a bath of water at 20° to 40°C and pressurize at 1 kg/cm2
(14 psi) for approximately 2 minutes. Repeat the test at least three times.
Whenever possible, the cleaning operation should be extended to the entire system, filling as indicated above and running the tractor for a minimum of 1 hour. Subsequently, stop the engine and drain through the valves provided.
Radiator Assembly
11. Sealing surround - 12. Vent pipe - 13. Pressure release valve (set to .5 kg/em" or 7 psi) -14. Vacuum release valve -15. Filler cap
Print No. 603.54.201 - X-1979
Fiat Trattori allBfl
880-5 8800T-5
WORKSHOP
MANUAL
DIREZIONE
QUICK REFERENCE INDEX
Section
GENERAL . ... A
SPECIFICATION 00
ENGINE . . . 10
POWER TRAIN 20
FRONT AXLE
- STEERING. 30
LIVE FRONT AXLE 40
LIFT UNIT . . . . 50
ELECTRICAL SYSTEM . 60
SERVICE TOOLS . . 90
COMMERCIALE
Reprinted
Fiat Trattori GENERAL: A 880-5 Contents
page 3
Page
A - CONTENTS - See Model 7BO and BBO ............ . 6-7
00 - SPECIFICATION
Identification Data - Weights Engine 1-2 Power Train - Brakes - Steering - Front
Axle 2-3 Power Train Schematics - See Model
880 New 7 live Front Axle ~ Rear Wheels - Power
Take-Off 3 Lift - Towing Attachments 3-4 Ballasting - Body - Electrical System 4-5 lighting - Instruments and Accessories-
Tyre Sizes 5 Dimensions - See Model 880 13 Capacities. 6
10 - ENGINE - Specification and Data
Engine Block - Cylinder Head Crank Gear. 2-3-4 Valve Gear 5-6-7 Lubrication System 7-8 Cooling System . B Fuel System. 9-10 Torque Data 11 Longitudinal Section through Engine 12
Date
IV-19B1
IV-1981 IV-19B1
IV-1981
X-1979
IV-19B1 IV-19B1 IV-1981
IV-19B1 IV-1981 IV-19B1
IV-19B1 IV-19B1 IV-1981 IV-19B1 IV-19B1 I V -19B1 IV-19B1 IV-19B1
100 - ENGINE - Description - Performance Data -To Remove - To Refit
Description . . . . . . . . . . . . . . Performance Data. . . . . . . . . . . Compression Test - See Model 7BO and
IV-19B1 IV-19B1
880, . . . . . . . . . . . . . . . . 3 IV-19B1 IV-19B1 To Remove and Refit - See Model 7BO 4-5
101 - ENGINE - Engine Block - Cylinder Head
Cylinder liners - See Model 780 Cylinder Head ......... .
102 - ENGINE - Valve Gear
Camshaft - Valves. Guides and Springs Tappets. Pushrods and Rockers. Valve Timing Gears. . . . . . . . . .
1-2 I X-1979 1 IV-1981
IV-1981 IV-1981 IV-1981
103 - ENGINE - Crank Gear
Crankshaft . . . . . . . . . . . Main and Big· End Bearings and Caps -
See Model 780 . . . . . . . . . . Pistons and Rings - See Model 780 . Connecting Rods - See Model 7BO Flywheel - See Model 780 . . . . . .
104 - ENGINE - Fuel System
Note: Not available.
Page 1
2 3-4 4-5
5
105 - ENGINE - Lubrication System
Lubrication System Diagram. . . . . . Oil Pump - Oil Filter - Oil Pressure Warn-
ing System ............ .
106 - ENGINE - Cooling System
Cooling System Diagram . . . . . . . Description - Water Pump - See Model
780 ......... . Radiator - See Model 780 . . . . . . . To Adjust Belt Tension ....... . Water Temperature Gauge - Thermostat
- See Model 780 . . . . . . . . .' .
2
2-3 3
4
Date IV-1981
X-1979 X-1979 X-1979 X-1979
IV-19B1
IV-1981
IV-1981
X-1979 X-1979
IV-1981
X-1979
20 - POWER TRAIN - Specification and Data
Clutches - See Model 880 with FERODO or LUK 12"/12" Clutches 3-4
12-speed Transmission and Splitter -See Model 880 new 4-5-6
Crawler Gear - See Models 780 and 880 new 6
Bevel Drive and Differential - See Model 880 new
Brakes - See Models 780 and 880 new
Final Drive - See Model 880. Power Take-Off - See Model 880 new Torque Data - See Model 880 new Cross Section through Power Train -
See Model 880 . Longitudinal Section through Power
Train - See Model 880
7 B 9 9
9-10 11-12
14
16
X-1979
X-1979
X-1979
IV-1981 IV-1981 X-1979 X-1979 X-1979 X-1979
IV-19B1
X-1979
PNnt No. 603.54.201/01 - IV-1981
A
page 4
200 • POWER TRAIN • To Remove and Refit
page1 I Control Platform - See Models 780 and
880 ••••...•••...•...
201 • POWER TRAIN • Clutch
To Remove and Refit - See Models 880 with 12./12° Clutches. . . . •..
To Overhaul FERODO 1~/12H Clutch To Adjust FERODO 12H/12H Clutch • To Overhaul LUK 12·/12· Clutch. . • To Adjust LUK 12N/1~ Clutcli. . . • To Adjust Clutch Linkage - See Models
780 and 880 ..•.•..•.•..
1 1 2 2
10
Dale
X-1979
X-1979 IV-1981 IV-1981 IV-1981 IV-1981
X-1979
202 • POWER TRAIN· Transmission and Splitter
To Remove - To Refit - To Dismantle -See Model 880, 12-speed. . • • . • 1-2-7
Sections through Transmission - See Model 880, 12-speed, new • • • . . 6
To Inspection - See Models 780 and 880 7 To Reassemble - See Model 880, 12-
speed, new as from Frame No. 889370 7-8-9 To Adjust Transmission - See Model 880, To Adjust Transmission - See Model
880, 12-speed, new as from Frame No. 889370 • • • • • . • . • • •• 13-14-15
203 • POWER TRAIN • Crawler Gear
Description - To Overhaul 12-speed Crawler Gear - See Models 780 and 880, 12-speed. • • • • • • • • . • •
,
X-1979
X-1979 X-1979
X-1979
X-1979
X-1979
204 - POWER TRAIN - Rear Bevel Drive and Differential
To Remove - To Refit - To Dismantle -To Reassemble - See Model 880.. 1-2
To Adjust Bevel Drive - See Model 880 New as from Frame No. 887701. • 3-5-7-10
To Adjust Differential - See Model 880 11-12
DIREZIONE COMMERCIALE
X-1979
X-1979 X-1979
GENERAL: Contents
Page Dale To Reassemble and Adjust Differential
Lock - See Models 780 and 880 .. 12 X-1979 To Adjust Differential Lock Control
Pedal - See Model 780 and 880 new 13 X-1979
205 • POWER TRAIN • Brakes
Operation - See Models 780 and 880 IV-1981 To Dismantle and Reassemble Brake
Units - See Models 780 and 880 . • 2 IV-1981 To Dismantle and Reassemble Master
Cylinder - See Models 780 and 880 3 IV-1981 To Adjust the Pedals - See Models 780
and 880 . . . . . • . . • . • • . • 4 IV-1981 To Reinstall the Pedals - To Bleed the
System - See Models 780 and 880 5 X-1979 To Bench Test Master Cylinder - See
Models 780 and 880 . . . • . • .• 6-7 X-1979 Parking Brake - See Models 780 and 880
new . . . . • • • . • . • • . • • • 8 X-1979
206 • POWER TRAIN • Final Drives
To Remove and Dismantle - See Models 780 and 880 . • . • . • . • • • • •
To Reassemble - See Models 780 and 880 2
207 • POWER TRAIN • Power Take-Off
To Remove - To Refit - See Models 780 and 880 •.•.•..•••••••
To Dismantle - To Reassemble - See Models 780 and 880 with 540-1000 rpm Power Take-Off •••••••••• 2-3
X-1979 X-1979
X-1979
X-1979
30 • FRONT AXLE· STEERING • Specification and Data
Front Axle • • • • • • • • • • • • • • 1 Power Steering • • • • • . • • • . •• 1-2 Torque Data - See Models 780 and 880 5
IV-1981 IV-1981 IV-1981
Fiat Trattori GENERAL: A 880-5 Contents
301 - FRONT AXLE - STEERING - Front Axle
To Remove and Refit Axle Beam - To Overhaul Axle Arms - See Models 780 and 880 with Power Steering ..
To Inspect - See Models 780 and 880
Page Dale
2 IV-1981 IV-1981
303 - FRONT AXLE - STEERING • Power Steering
To Overhaul Power Steering - See Models 780 and 880 .•... • . . . .
To Overhaul Hydraulic Cylinder - See Models 780 and 880 . . • . . • . . 2
To Overhaul Steering Pump and Reser-voirs •...•........•..
To Bleed the System - See Models 780 and 880 . • • . • • . . . • • • . . 3
To Bench Test Steer Cylinder Relief Valve « OVP 20» - See Models 780 and 880 . . • • . . • . • . • • . • 4
To Bench Test Steer Cylinder Safety Valves « OVP 20 » - See Models 780 and 880 • . . . • • • • . . . . • • 5
Trouble-Shooting Chart - See Models 780 and 880 • . • . . . . . . • •. 6-7
Operation Diagram and Sections - See Models 780 and 880 . . • . . • . • 9
X-1979
X-1979
IV-1981
X-1979
X-1979
X-1979
X-1979
X-1979
40 - LIVE FRONT AXLE - Specification and Data
Live Front Axle - See Model 880 DT. 1-2 Front Axle Drive - Drive Shaft - See Mod-
els 780 DT and 880 DT. . . . • 3 Torque Data - See Model 880 DT • . • 4
401 - LIVE FRONT AXLE - Front Axle
To Remove - To Overhaul Final Drives, Hubs and Steering Joints - See Model 880 DT • • . • . . . . . .• 1-2
To Adjust King Pin Bearings - To Adjust Wheel Bearings - See Model 880 DT 3-4
To Overhaul Bevel Drive and Differential - See Model 880 DT • • • . . • .• 5-6
To Adjust Bevel Drive - See Model 880 DT . . • • • • • . • . . • • 6-7-8-9-10
IV-1981
IV-1981 IV-1981
X-1979
IV-1981
IV-1981
IV-1981
page 5
402 • LIVE FRONT AXLE - Drive Shafts· Axle Drive
Page Dale To Dismantle, and Reassemble Drive
Shafts - To Dismantle Axle Drive -See Models 780 DT and 880 DT new 1-2 X-1979
To Reassemble Axle Drive - See Models 780 DT and 880 DT. . . . . • . . . 2 X-1979
Sections through Live Front Axle - See Models 780 DT and 880 DT new .. 3 IV-1981
50 - LIFT UNIT - Specification and Data
Lift - See Models 780 and 880. . . •. 1-2 X-1979 Lift Pump. . . . . . • • . . • . . • . 1 IV-1981 Implement Attachment - See Models
780 and 880 . . . . . • • • . . . • 4 X-1979 Trouble-Shooting Chart - See Models
780 and 880 . . . . . • . . . . . . 5 X-1979 Torque Data - See Models 780 and 880 6 X-1979
501 • LIFT UNIT· Lift
Description - See Models 780 and 880 To Remove - To Dismantle - See Models
780 and 880 • • . • . • • . . • .. 2-5 Hydraulic System Diagrams - See Models
780 and 880 • . . . . . . • . • • . 3 Operation - Linkage - See Models 780
and 880 • . • • . . . . . . . . . . 4 To Inspect - See Models 780 and 880 5 To Reassemble - See Models 780 and
880. • • • • • . . . . . . . . • . • 6 To Adjust - See Model 880 new as from
Frame No. 892290 ...•... 7-8-9-10-11 To Adjust Relief and Cylinder Safety
Valves - See Model 880/12 • • . •• 12 To Check Unload Valve - See Models
780 and 880 • • . • . • . • . • .• 13
502 - LIFT UNIT - Lift Pump
Lift Pump. . . • . . . • • . . • . 1 To Overhaul - See Models 780 and 880 1-2 Output Test - Oil Filter - See Models
780 and 880 . . . . • . . . . . . • 3
X-1979
X-1979
IV-1981
IV-1981 X-1979
X-1979
X-1979
IV-1981
X-1979
IV-1981 X-1979
X-1979
Print No. 603.54.201/01 - IV-1981
A
page 6
503 - LIFT UNIT - Implement Attachment Page
Draught Control Device - See Model 880 new as from Frame No. 894073.. 1-2-3-4
504 - LIFT UNIT
SALAMI Remote Control Valves
Specification - See Models 780 and 880 1 Torque Data - See Models 780 and 880 1 To Dismantle - See Models 780 and 880 2 Description and Operation - See Models
780 and 880 . . • . • • • . • • . • 3 To Adjust Relief Valve - See Model 880
/12 ••••••••.••••.•• , 4-5 Spool Return Test - See Models 780 and
880. • . . • • • • • • • . . • . . • 6 Spool Leakage Test - See Models 780
and 880 . • . • • • . • . . . • • • 7
KONT AK Remote Control Valve
Specification and Data - See Models 780 and 880 . • • • • • • . . . • . . • 9
Torque Data - See Models 780 and 880 9 To Dismantle - See Models 780 and 880 10 Description and Operation - See Models
780 and 880 • • • • . . • • . • • • 11-12 To Check Relief Valve - See Models 780
and 880 • . . . • • • • • • . . .• 13 Spool Return Test - See Models 780 and
880. • . • • . • • • . • • • • . •• 14
DIREZIONE COMMERCIALE
I Dale
IV-1981
X-1979 X-1979 X-1979
X-1979
X-1979
X-1979
X-1979
IV-1981 IV-1981 IV-1981
IV-1981
IV-1981
IV-1981
GENERAL: Contents
Page Spool Leakage Test - See Models 780
and 880 • • • • • . • • • • • • •• 15
505 - LIFT UNIT - Auxiliary Cylinder
Specification and Data - See Models 780 and 880 •.••••.•••••••
Torque Data - See Models 780 and 880 Lift Schematics - See Models 780 and 880
1 1 2
Dale
IV-1981
X-1979 X-1979 X-1979
60 - ELECTRICAL SYSTEM - Specification and Data
Charging System 1 Starter - MARELLI 2-3 Starter - BOSCH 4-5 Battery - Fuses - See Model 880 8 Lighting - Signals - Accessories - See
Models 780 and 880 • • • • 9 Starter Switch - Lighting Switch - Direc-
tion Light Switch - See Models ~ and 880 • • • •• • ••• 10
Controls and Instruments - See Models 780 and 880 11
Wiring Diagram. • • • • • 7-8
90 - SERVICE TOOLS
IV-1981 IV-1981 IV-1981 X-1979
X-1979
X-1979
X-1979 IV-1981
See those listed for 780 and 880 Mod- I els. • • • • • • • • • . • • • • .1-2-3-4-5 IV-1981
FiatTrattori BilBO 980 9800T
WORKSHOP
MANUAL
DIREZIONE
QUICK REFERENCE INDEX
Section
GENERAL . ... A
SPECIFICATION 00
ENGINE . . . 10
POWER TRAIN 20
FRONT AXLE - STEERING. 30
LIVE FRONT AXLE 40
LIFT·UNIT . . . 50
ELECTRICAL SYSTEM . 60
SERVICE TOOLS . . . 90
COMMERCIALE Reprinted
Fiat Trattori GENERAL: A 980 Contents
A - GENERAL
See Models 780 and 880.
00 - SPECIFICATION
Identification Data - Weights
Engine •••••••••••
Power Train - Brakes - Steering - Front Axle - Live Front Axle - Rear WheelsPower Take-Off . • . . • • • • • •
Power Train Schematics ••• • • • .
Lift - Towing Attachments - Tyre Sizes Ballasting - Body - Electrical System -
Lighting - Instruments and Accessories ••
Dimensions •
Capacities. •
Page
6-7
1-2
3
4
5
6 7
8
10 - ENGINE - Specification and Data
Engine Block - Cylinder Head •
Crank Gear •.•• 2-3-4 Valve Gear •••• 5-6-7 Lubrication System 7-8 COOling System. 8 Fuel System. • • • 9-10-11 Torque Data . . . 12 Longitudinal Section through Engine 13
Date
IV-1981
IV-1981
IV-1981
IV-1981
IV-1981 IV-1981
IV-1981
IV-1981
IV-1981
IV-1981 IV-1981
IV-1981
IV-1981
IV-1981
IV-1981 IV-1981
IV-1981
100 - ENGINE - Description· Performance Data· To Remove • To Refit
Description • • • • • • • • . . • • •
Performance Data. • • . • • . • • •
Compression Test - See Model 780 • 3
IV-1981 IV-1981
IV-1981
IV-1981 To Remove - To Refit - See Model 780 4-5
101 - ENGINE· Engine Block • Cylinder Head
Cylinder Sleeves
Cylinder Head. •
102 • ENGINE· Valve Gear
Camshaft •••••••.•.••
Valves - Guides and Springs - See Model 780 •••••••••••••••••
Tappets - Push Rods and Rockers - See Model 780 •••
Timing Gear Train • • • • • • • • • •
1 j'V-1981 1 IV-1981
2
IV-1981
IV-1981
IV-1981
IV-1981
page 3
103 • ENGINE· Crank Gear
Crankshaft • • • .
Main and Big-End Bearings and Caps -See Model 780 •
Pistons and Rings Connecting Rods
Flywheel - See Model 780 .
104 - ENGINE. Fuel System
Note: Not Available.
Page
1
2 2
2
5
105 - ENGINE· Lubrication System
Lubrication System Diagram. •. ••
Oil Pump - Oil Filter - Oil Pressure Sending Unit. • • • • •
106 • ENGINE - Cooling System
Cooling System Diagram ••••••
Description - Water Pump - See Model
2
780. 2-3
Radiator - See Model 780 • • • • • • • 3 To Adjust Belt Tension. • ••.
Water Temperature Gauge - Thermostat - See Model 780 • • . • • 4
Date
IV-1981
X-1979 IV-1981
IV-1981 X-1979
IV-1981
IV-1981
IV-1981
X-1979 X-1979
IV-1981
X-1979
20 •. POWER TRAIN • Specification and Data
Clutches - See Model 880 with FERODO or LUK 12"/12" Clutch .. 2-3-4 X-1979
Transmission and Splitter - 12-speed -See Model 880 new 4-5-6 X-1979
Crawler Unit - See Models 780 and 880 new 6 X-1979
Rear Bevel Drive and Differential - See Model 880 new • . . 7 IV-1981
8 IV-1981 Brakes - See Models 780 and 880 new 9 X-1979
Final Drives. IV-1981
Power Take-Off • IV-1981
Torque Data . IV-1981
Cross Section through Power Train. 2 IV-1981
Longitudinal Section through Power Train. . . 3 IV-~981
200 • POWER TRAIN· To Remove and Refit
Control Platform - See Models 780 and 880 ................. . X-1979
Print No. 603.54.201/01 - /V-1981
A
page 4
201 • POWER TRAIN • Clutch
To Remove and Refit - See Model 880 with 12"/12" Clutch • . • • • • • .
To Overhaul FERODO 12"/12" Clutch
To Adjust FERODO 12"/12" Clutch To Overhaul LUK 12H /12" Clutch. • •
To Adjust LUK 12"/12" Clutch •••.
To Adjust Clutch Linkage - See Models 780 and 880 .••••••••••.
Page
1
2
2
10
Date
X-1979
IV-1981
IV-1981 IV-1981
IV-1981
X-1979
202 • POWER TRAIN • Gearbox and Splitter
To Remove - To Refit - To Dismantle -See Model 880, 12-speed • • • • • • 1-2-7
Longitudinal and Cross Sections - See Models 880, 12-speed, new • • • • • 6
To Inspect - See Models 780 and 880 7
To Reassemble - See Model 880, 12-speed, new, from Frame 889370 •• 7-8-9
To Adjust Gearbox - See Model 880, 12-speed, new, from Frame 889370 • 13-14-15
203 • POWER TRAIN • Crawler Gear
Description - To Overhaul Crawler for 12-speed Transmission - See Models 780 and 880, 12-speed Transmission
X-1979
X-1979
X-1979
X-1979
X-1979
X-1979
204 • POWER. TRAIN • Rear Bevel Drive and Differential
To Remove - To Refit - To Dismantle -To Reassemble - See Model 880.. 1-2
To Adjust Bevel Drive - See Model 880, new, from Frame 887701 • • • • • 3-5-7-10
To Adjust Differential - See Model 880 11-12
To Reassemble and Adjust Differential Lock - See Models 780 and 880 .. 12
To Adjust Differential Lock Control Pedal - See Models 780 and 880, new Pedal •••••••• • • • • • •. 13
DIREZIONE COMMERCIALE
X-1979
X-1979
X-1979
X-1979
X-1979
GENERAL: Contents
205 • POWER TRAIN • Brakes
Operation of Hydrostatic Circuit - See Models 780 and 880 • . • • . . • •
To Dismantle and Reassemble Brake Units - See Models 780 and 880 • .
To Dismantle and Reassemble Master Cylinder - See Models 780 and 880
To Adjust the Pedals - See Models 780 and 880 •.••••••.•.••.
To Re-install the Pedals - To Bleed the
Page
2
3
4
System - See Models 780 and 880 5
To Bench Test Master Cylinder - See Models 780 and 880 . • • • • . .. 6-7
Parking Brake - See Models 780 and 880 new ••...••••••••••• 8
206 • POWER TRAIN • Final Drives
To Dismantle • • • • . . . • • • • • •
To Reassemble - See Models 780 and 880 2
207 • POWER TRAIN • Power Take-Off
To Remove - To Refit - See Models 780 and 880 ••••••••••••.•
To Dismantle - To Reassemble - See Models 780 and 880, 540 - 1000 rpm
1 I
P.T.O. • • • • • • • • • • • • • •• 2-3
Date
IV-1981
IV-1981
IV-1981
IV-1981
X-1979
X-1979
X-1979
IV-1981
X-1979
X-1979
X-1979
30 - FRONT AXLE - STEERING - Specification and Data
Front Axle Hydrostatic Power Steering . • • • .• 1-2
Torque Data - See Models 780 and 880 5
IV-1981
IV-1981
IV-1981
301 • FRONT AXLE· STEERING • Front Axle
To Remove and Refit Axle - To Overhaul Steering Knuckles - See Models 780 and 880, Hydrostatic Steering. • • •
To Inspect Axle - See Models 780 and 880 .•..•.••.••..•...
IV-1981
2 IV-1981
Fiat Trattori GENERAL: A 980 Contents
page 5
303 - FRONT AXLE - STEERING - Power 402 - LIVE FRONT AXLE - Drive Shafts - Axle Steering Drive
Page Dale To Overhaul Power Steering - See
Models 780 and 880 . . . . X-1979
To Overhaul Power Cylinder - See Models 780 and 880 . . . .
To Overhaul Pump and Reservoir ...
To Bleed the System - See Models 780 and 880 ......••......
To Adjust Relief Valve of OVP 20 Unit on Bench - See Models 780 and 880
To Adjust Cylinder Overload Valves of OVP 20 Unit on Bench - See Models 780 and 880 . . . . • • • . . • . •
Fault Finding Chart - See Models 780 and 880 •.•.....•.....
Operation Diagrams and Sections - See Models 780 and 880 . . . . . . . •
2 X-1979
IV-1981
3 X-1979
4 X-1979
5 X-1979
6-7 X-1979
9 X-1979
40 - LIVE FRONT AXLE - Specification and Data
Front Axle - See Model 880DT . • . .1-2 (*)
Front Axle Drive • Drive Shafts - See Models 780 DT and 880 DT. • • 3
Torque Data - See Model 880DT •. , 4
(*) For turning radius see page 3, section 00.
401 - LIVE FRONT AXLE - Front Axle
To Remove - To Overhaul Final Drives and King Pins - See Model 880DT 1-2
To Adjust King Pin Bearings - To Adjust Wheel Bearings - See Model 880 DT 3-4
To Overhaul Bevel Drive and Differential - See Model 880 DT . . • • • . •. 5-6
To Adjust Bevel Drive - See Model 880DT ..•..•••••.•• 6-7-8-9-10
IV-1981
IV-1981
IV-1981
X-1979
IV-1981
IV-1981
IV-1981
Page To Dismantle and Reassemble Drive
Shaft - To Dismantle Axle Drive -See Models 880 DT and 880 DT, new 1-2
To Reassemble Axle Drive - See Models 780 DT and 880 DT. • . • . . . . . 2
Sections through Live Front Axle - See Models 780 DT and 880 DT, new . . 3
50 - LIFT UNIT· Specification and Data
Lift
Lift Pump.
Implement Attachment
Fault-Finding Chart - See Models 780 and 880 5
Torque Data - See Models 780 and 880:
- Section 50 . 6 - Section 505
501 - LIFT UNIT - Lift
Description - See Models 780 and 880
To Remove •......•.•...•
To Dismantle - See Models 780 and 880 2-5
Hydraulic System Diagrams . . . • • . 1
Lift Schematics - See Models 780 and 880 4
To Inspect - See Models 780 and 880 5
To Reassemble - See Models 780 and 880 & To Adjust - See Model 880, new, from
Frame 892290 .•.••.•.•. 7-8-9-10-11
To Adjust Relief and Cylinder Overload Valves - See Model 880/12 . . . • .
To Check Unload Valve - See Models 780 and 880 ••...••.•..•.•
502 - LIFT UNIT - Lift Pump
Hydraulic Pump. . . . • . . . • •
13
To Overhaul - See Models 780 and 880 1-2
Output Test - Oil Filter - See Models 780 and 880 .••••..••..• 3
Dale
X-1979
X-1979
IV-1981
IV-1981
IV-1981
IV-1981
X-1979
X-1979
X-1979
X-1979
IV-1981
X-1979
IV-1981
IV-1981
X-1979
X-1979
X-1979
IV-1981
X-1979
IV-1981
X-1979
X-1979
pHnt No. 603.54.201/01 - IV-1981
A
page 6
503 - LIFT UNIT - Implement Attachment Page Dale
Draft Control Device - See Model 880, I new, from Frame 894073 • • • •• 1-2-3-4 IV-1981
504 - LIFT UNIT
SALAMI Remote Control Valves
Specification and I;>ata - See Models 780 and 880 •••••••••••.••
Torque Data - See Models 780 and 880 1
To Dismantle - See Models 780 and 880 2
Description and Operation - See Models 780 and 880 • • • • • • • • • • •• 3
To Adjust Relief Valve - See Model 880 /12. • • • • • • • • • • • • • • •• 4-5
Spool Return Test - See Models 780 and 880. • • • • • • • • • • • • • • • • 6
Leakage Test - See Models 780 and 880 7
KONT AK Remote Control Valves
Specification and Data - See Models 780 and 880 ••••••••••••••
Torque Data - See Models 780 and 880
DIREZIONE COMMERCIALE
9
9
X-1979 X-1979
X-1979
X-1!i79
X-1979
X-1979
X-1979
IV-1981
IV-1981
GENERAL: Contents
Pal1e Dale
To Dismantle - See Models 780 and 880 10 IV-1981 Description and Operation - See Models
780 and 880 .. 11-12 IV-1981 To Check Relief Valve - See Models 780
and 880 · . . . . . . . 13 IV-1981 Spool Return Test - See Models 780 and
880 •• .. · ... . . 14 IV-1981 Spool leakage Test - See Models 780
and 880 . · . . . . . . . 15 IV-1981
60 - ELECTRICAL SYSTEM - Specification and Data
Charging System • •
Starter - MARELLI - See Model 880/5 2-3 Starter - BOSCH - See Model 880/5 • 4-5
Battery - Fuses - See Model 880 8
Lighting - Signals - Accessories - See Models 780 and 880 • • • • • 9
Starter Switch - Lighting Switch - Direc-tion Light Switch - See Models 780 and 880 • • • • • • • 10
Control and Instruments - See Models 780 and 880 • • • • • • • • • 11
Wiring Diagrams - See Models 780 and 880. • • • • • ••• 13-14
90 - SERVICE TOOLS
IV-1981
IV-1981 IV-1981
X-1979
X-1979
X-1979
X-1979
X-1979
See tools listed for Models 780 and I 880. • • • • • • ••••••••• 1-2-3-4-5 IV-1981