Module 6 - Preparing Electrical Power and Hydraulic Tools

Republic of the PhilippinesDepartment of Education

PUBLIC TECHNICAL-VOCATIONAL HIGH SCHOOLS

mhar cueto

Unit of Competency: PREPARE ELECTRICAL AND HYDRAULIC TOOLS

Module No.: 6 Module Title: PREPARING OF ELECTRICAL AND HYDRAULIC TOOLS

ACKNOWLEDGMENT

Copyright Department of Education 2008

First Published JUNE 2008

This draft was prepared during the Competency-Based Learning Materials Development Workshop conducted at the Marikina Hotel, Marikina City on February 18-22, 2008 and finalized on May 23-25, 2008 at the Development Academy of the Philippines (DAP), Tagaytay City.

This learning instrument was developed by the following personnel:

Technology Teacher:

MR. MARINO C. CUETOCommunity Vocational High SchoolMinSCAT Calapan City Campus,Masipit, Calapan City

Contextual Teacher:

Ms. Gina C. delos SantosA.F.G. Bernardino Memorial Trade SchoolLias, Marilao, Bulacan

Facilitators:

Dr. Corazon C. Echano Project Coordinator

DepED - TechVoc Task Force

Encoder:

Mr. Lemuel C. VallesAdminstrative Officer IIEducational Information Division

Fund: Department of Education

REFERENCES AND FURTHER READING

Handley, William, Industrial Safety Handbook, McGraw-Hill Book Co.; 1977, pp.

Hubert, Charles I. Preventive Maintenance of Electrical Equipment – 2nd Ed., New York: McGraw Hill Book Co.; 1974, pp.

Institute of Integrated Electrical Engineers, Inc. Philippine Electrical Code, Part I, 2002, # 41, Monte de Piedad St., Cubao, Quezon City, Philippines: Bookman Inc., June 2002.

TABLE OF CONTENTS

Page

How to Use this Module.....................................................................................iIntroduction......................................................................................................iiTechnical Terms..............................................................................................iiiLearning Outcome 1: Prepare electrical tools

Learning Experiences/Activities..............................................................2 Information Sheet 1.1.............................................................................3 Self-Check 1.1......................................................................................12 Self-Check 1.2......................................................................................13 Self-Check 1.3......................................................................................15 Performance Test.................................................................................17

Learning Outcome 2: Prepare hydraulic tools Learning Experiences/Activities............................................................19 Information Sheet 2.1...........................................................................20 Job Sheet 2.1........................................................................................24 Activity Sheet 2.1.................................................................................25

Learning Outcome 3: Store electrical power and hydraulic tools Learning Experiences/Activities............................................................27 Information Sheet 3.1...........................................................................28 Self-Check 3.1......................................................................................31

Assessment Plan............................................................................................32Observation Checklist....................................................................................33Observation and Questioning Checklist.........................................................34Demonstration...............................................................................................35Written Report...............................................................................................36Performance Test...........................................................................................37Answer Key 1.1..............................................................................................38Answer Key 1.2..............................................................................................38Answer Key 1.3..............................................................................................38Answer Key 3.1..............................................................................................39

HOW TO USE THIS MODULE

Welcome to the Module “Preparing of Electrical Power and Hydraulic Tools”. This module contains training materials and activities for you to complete.

The unit of competency “Prepare Electrical Power and Hydraulic Tools” contains the knowledge, skills and attitudes required for a Building Wiring Installation course. It is one of the specialized modules at National Certificate (NC) Level II.

You are required to go through a series of learning activities in order to complete each of the learning outcomes of the module. In each learning outcome there are Information Sheets, Job Sheets, Operation Sheets and Activity Sheets. Do these activities on your own and answer the Self-Check at the end of each learning activity.

If you have questions, do not hesitate to ask your teacher for assistance.

Recognition of Prior Learning (RPL)

You may already have some or most of the knowledge and skills covered in this module.

If you can demonstrate competence to your teacher in a particular skill, talk to your teacher so you do not have to undergo the same training again. If you have a qualification or Certificate of Competency from previous trainings, show it to him/her. If the skills you acquired are consistent with and relevant to this module, they become part of the evidence. You can present these for RPL. If you are not sure about your competence / skills, discuss this with your teacher.

After completing this module ask your teacher to assess your competence. Result of your assessment will be recorded in your competency profile. All the learning activities are designed for you to complete at your own pace.

In this module, you will find the activities for you to complete and relevant information sheets for each learning outcome. Each learning outcome may have more than one learning activity.

This module is prepared to help you achieve the required competency, in receiving and relaying information. This will be the source of information that will enable you to acquire the knowledge and skills in Building Wiring Installation NC II independently at your own pace or with minimum supervision or help from your teacher.

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Program/Course: BUILDING WIRING INSTALLATION NC II

Unit of Competency: PREPARE ELECTRICAL POWER AND HYDRAULIC TOOLS

Module Title: Preparing Electrical Power and Hydraulic Tools

INTRODUCTION:

This module contains the “know” and “do” units in preparing electrical power and hydraulic tools.

It covers the knowledge, skills and attitude in preparing electrical power tools needed before starting work. Tools are inspected and damaged tool, if any, must be reported to the teacher and serviced. Proper checking must also be done before commencing work so that lubrications and auxiliary parts are per enterprise specifications. Proper storing must also be practiced.

This module consists of three (3) learning outcomes (LOs) that contain learning activities for both knowledge and skills supported with information sheets, job/operation sheets and self-check. Before attempting to perform the manual exercises, see to it that you have already read and understood the information/operation sheet and answered correctly the self-check provided in every Learning Activities.

SUMMARY OF LEARNING OUTCOMES:

Upon completion of the module the students shall be able to:

LO1. Prepare electrical power tools

LO2. Prepare hydraulic tools

LO3. Store electrical power and hydraulic tools

ASSESSMENT CRITERIA:

Refer to assessment criteria of learning outcomes 1-3 of this module.

PREREQUISITES:

None

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TECHNICAL TERMS

Accuracy means how near the instrument reading is to the actual value.

Amperage means electricity; electrical current flow; electron flow; must be measured at a point within a circuit.

Bender is a tool used to make various angles or bends in conduit.

Calibration is a technique of testing and adjusting an instrument by referring to another instrument or device of known accuracy and precision.

Chuck is a portion of drill that holds the bit.

Cross handle is the handle set across a power tool to prevent the tool from burning.

Cutter is a hardened steel device used to cut holes in metal boxes.

Die is a component that bucks up cutter on opposite side of metal box.

Cold is the absence of heat; a temperature considerably below normal

Ground is an electrical point or any good conductor that is connected to a common chassis with zero relative voltage; usually conductors are connected to the earth.

Hydraulic is using pressurized fluid oil to accomplish work.

Hydraulic oil is specially formulated oil for hydraulic pumps.NOTE: No oil or fluid should ever be substitute for hydraulic oil.

Knockout punch is a device used to make openings for conduit in metal enclosures

Ram is a device used to transfer hydraulic pressure to a mechanical device

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Learning Outcome 1: Prepare electrical power tools

Assessment Criteria:

1. Parts of electrical power tools are identified in accordance to manufacturer’s manual.

1. Electrical power tools are inspected for damage in line with a prescribed checklist.

2. Defective parts /components/accessories are replaced according to manufacturer’s specification.

3. Electrical power tool is stored in line with the manufacturer’s requirements.

References:

1. Mulin, R.C., Smith R.L. Electrical Wiring-Commercial, Six Ed., New York: Delmar’s Publishing Inc.; 1984, pp.

2. Agpoa, Feleciano. Interior and Exterior Wiring Troubleshooting ; National Bookstore: 1991

3. www.diydata.com/tool/drills/drills.php

4. www.powertoolinstitute.com

5. www.technologystudent.com

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http://www.technologystudent.com/

http://www.powertoolinstitute.com/

http://www.diydata.com/tool/drills/drills.php

LEARNING EXPERIENCES/ACTIVITIES

Learning Outcome 1: Prepare electrical power tools

Learning Activities Special Instructions

1. Read: Information sheet # 01 in this module

You can ask the assistance of your teacher to show you and explain further topic you can’t understand.

2. Listen to the teacher’s demonstration and list the different kinds of defects of electrical tools.

Observe and write the different kinds of defect of electrical tools from the teacher’s demonstration.

Perform the performance test

3. Answer the Self-check 1-3 Check your answer by using the answer key.

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INFORMATION SHEET 1.1

PREPARE ELECTRICAL POWER TOOLS

COMMON ELECTRICAL POWER TOOLS

Tools are used to modify raw materials for human use. Tools can be considered as extension of the human hand thereby increasing its speed, power, and accuracy.

Advantages of using the proper tools

1. Efficiency of the work2. High quality of work is achieved3. Speed of accomplishment is faster4. Accuracy

However, these advantages depend upon the three factors, namely:

availability and sufficiency of materials experience and skill of the workers in their respective fields tools and equipment of good quality

The different kinds of construction tools maybe classified according to the different kinds of trade involve, namely:

carpentry tools; masonry tools; tinsmith tools; painters tools; plumbing tools; and electrical tools

General safety rules for using power equipment

Always follow manufacturer’s operating instructions Never place hands in a pinch point. Use eye protection. Wear gloves when working with hot equipment or materials. Always secure loose clothing such as shirt sleeves and shirttails. Tie back long hair and do not wear dangling jewelry. Never exceed rated capacity of equipment. Never remove protective guards from equipment. Be prepared for the unexpected.

Portable Hand drill is a small drilling machine with a chuck of ¼” and 3/8”. It is used to bore holes on lighter metal work.

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Portable Electric Drill Safety

1. Wear safety glasses when operating with portable electric drill.2. Disconnect the drill from the electrical supply when installing bits.3. Clamp stock so it will not move during the drilling operation.4. Before drilling, turn the drill on to see if the bit is centered and running

true.5. Align the bit with the desired hole location before turning the drill on.6. Hold the drill firmly with both hands while drilling.7. When drilling deep holes with a twist drill, move the bit up and down

several times while drilling to remove cuttings and reduce overheating in the bit.

8. Do not allow the cord to become wrapped around the drill when working.

9. If the electrical cord becomes frayed or starts to separate from the drill housing, repair it immediately!

10. Remove the bit from the drill as soon as the work is completed.11. Select the correct bit for the finish and material being drilled. Make

sure the bit is securely tightened in the drill chuck.12. Be extremely careful when using larger portable electric drills (3/8" and

1/2"). If the bit should hang or get caught the drill will twist in the operator’s hands causing a sprain or bruised fingers.

13. Always remove the key from the chuck before drilling.14. To prevent seizing, reduce the feed pressure when the drill bit is about

to come through the material.

Procedures in using Portable Hand Drill

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Figure 1. Parts of a Portable Hand Drill

1. Always center punch or make a starting indentation in the material being drilled to get an accurate starting point for the drill bit.

2. Tighten the drill bit by rotating the chuck key to all three holes in the chuck. This will help to keep the drill bit centered.

3. Use only straight shank or Silver and Deming drill bits in portable electric drills.

4. Apply moderate even pressure to the drill during the drilling operation. If excessive pressure is required to make the bit cut then the bit is dull and needs to be sharpened.

5. Maintain good balance at all times when drilling.6. Use slow drill speeds for drilling metal and fast speeds for drilling wood.7. To obtain holes that are placed accurately, drill a small pilot first then

drill the final hole.

Portable Grinder is a small drilling machine used for several function including, grinding and cutting processes depending on the type of disc fitted to the machine.

Portable Disc Grinder Safety

1. Wear safety glasses, or face shield at all times when using the portable disc grinder.

2. Wear hearing protection when grinding operating the portable disc grinder.

3. Position the grinder so that sparks and grit thrown of during grinding will not hit the operator or others working in the area.

4. Make sure the material being ground is well secured.

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Figure 2. Parts of a Portable Grinder

5. Never grind with the portable disc grinder in an area which houses flammable materials or combustible gases.

6. Replace the grinding disk when it becomes worn to half its original diameter.

7. Wear long sleeve leather gloves when grinding with the portable disc grinder to protect hands and forearms.

8. Hold the portable disk grinder with both hands when grinding.9. Never lay the portable disc grinder down until the disk stopped rotating.10.Keep the electrical cord and extension cords out of the way of the work

when grinding.11.When using the wire brush attachment on the portable disc grinder,

hold the grinder extra firm to prevent it from being thrown about and cause an accident.

12.Caution others in the work area to wear safety glasses, hearing protection and to watch out for flying sparks and grit.

Procedures in using Portable Disc Grinder

1. Tighten the grinding disk snuggly when mounting it on the portable disc grinder. The disk will tighten itself during normal operation.

2. Be sure to hold the portable disc grinder firmly when the off/on switch is turned on. The centrifugal force created by the rotating disk will cause the portable disc grinder to move or jump.

3. For extended periods of grinding the operator may lock the off/on switch in the on position to avoid fatigue from holding the switch on manually.

4. When an extension cord is used with the portable disc grinder, make sure that the cord is sufficiently large in size for the grinder being used. A #14 gauge extension cord is minimum and #12 gauge is preferred.

5. Keep the electrical and extension cords positioned away from the grinding area. Cords are easily severed by the portable disc grinder.

6. When laying the portable disc grinder down, always position it on the tool rest.

7. Before using the switch lock on the portable disc grinder always check to make sure the lock is functioning properly.

8. Hold the portable disc grinder so that sparks and grit are thrown away from the operator and from others who are working in the area.

9. Using the portable disc grinder is hard work and causes rapid fatigue, rest frequently and do not become exhausted to help avoid accidents.

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TYPICAL POWER EQUIPMENT

Parts of a hammer drill

Safety rules for using a hammer drill

Always hold the drill steady and perpendicular to the work to prevent the bit from breaking or binding.

Always use a T-handle when drilling to allow you to secure the drill when it encounters especially hard surfaces.

Never lock the trigger in the “on” position. Never drill while off balance. Always wear eye protection.

Parts of a core drilling machine

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Figure 3

Safety rules for using a core drilling machine

Ensure that the core drilling machine is securely mounted to the surface to be drilled.

Never leave the machine drilling while unattended. Do not try to force the drill to cut faster than suggested by

the manufacturer. Never drill while off balance. Always wear eye protection.

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Figure 4

Parts of a power drill

Safety rules for using power drills

Check area to be drilled for hidden wires or pipes. Hold drill securely with both hands. Place small objects to be drilled in a vise. Always hold the drill steady and perpendicular to the work

to prevent the bit from breaking or binding. Always use a T-handle when drilling to allow you to secure

the hammer drill when it encounters especially hard surfaces. Never lock the trigger in the “on” position. Never drill while off balance. Always wear eye protection.

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Figure 5

Parts of portable and table band saws (Figure 6 and 7)

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Figure 6. Parts of a Portable Band Saw

Safety rules for using portable and table bandsaws

Secure object to be cut in a vise or other stable rest. Check the blade for missing teeth that could result in the blade

binding or breaking. Do not remove or alter safety guards. Keep hands clear off the blade. Never saw while off balance. Always wear eye protection.

SELF-CHECK 1.1

Direction: Identify the position of the parts of portable electric drill. Write the number of its position on the space before each letter.

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Figure 7. Parts of a Table Band Saw

A. Chuck

B. Chuck Wrench

C. Cord Strain Relievers

D. Electrical Cord

E. Piston Grip

F. Reversing Switch

G. Switch Lock

H. Trigger Switch

.

SELF-CHECK 1.2

Portable Electric Drill Safety and Procedure Test

Name _________________________ Date___________________ Year/Sec:____________

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Multiple Choice: Write the letter of the most correct answer on your answer sheet.

1. The purpose of turning the drill on before attempting to drill a hole is to ____.

a. see if the drill operates.b. see if the drill bit is running true.c. make sure the chuck key has been removed.d. check if the power cord is good

2. The purpose of moving the drill and bit up and down often when drilling deep hole is to __________________.

a. ream the hole slightly larger.b. give the drill operator better drilling leverage.c. help keep the hole centered.d. reduce overheating in the drill bit.

3. If a large capacity portable drill bit hangs during the drilling operation what will likely to happen?

a. The bit will break.b. The drill will twist in the operator's hands causing a sprained wrist

or bruised fingers.c. The drill will likely stall out and overheat.d. The hole will become badly distorted.

4. What kind of pressure should be applied to a drill during the drilling operation?

a. Light, even.b. Medium, even.c. Moderate, even.d. Heavy, even.

5. What type of drill speed is needed for wood drilling operations?

a. Lowb. Low-mediumc. Mediumd. High

6. What type of drill speed is needed for most metal drilling operations?

a. Lowb. Medium-lowc. Medium-high

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d. High

7. The purpose of a pilot hole when drilling is to ____________.

a. make the final hole drilling operation easier.b. guide the final drilling operation and achieve a more accurately

place hole.c. reduce the feed pressure needed to drill the hole.d. allow the final hole to be drilled at a faster rpm and achieve a

smoother finish.

8. To prevent seizing when drilling, the operator should ____________.

a. reduce the rpm's of the portable electric drillb. lubricate the drill bit.c. use a high speed drill bit.d. reduce the feed pressure when the bit is about to come through

the material being drilled.

SELF-CHECK 1.3

Portable Disc Grinder Safety and Procedure Test

Name _________________________ Date___________________ Year/Sec:____________

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Multiple Choice – Write the letter of the most correct answer on your answer sheet.

1. What personal protective equipment should be worn when operating the portable disc grinder?

a. Safety glassesb. Safety glasses and hearing protectionc. Safety glasses, hearing protection and glovesd. Safety glasses, hearing protection, gloves and respirator.

2. When operating the portable disc grinder the grinding disk should be positioned so the sparks and grit are thrown _____________.

a. away from the operator.b. away from the operator and others in the work area.c. up to avoid hitting others.d. down to avoid hitting others.

3. Grinding with the portable disc grinder, should not occur in an area which______________.

a. is enclosed.b. is freshly painted.c. has windows.d. houses flammables or combustible gases.

4. The grinding disc should be replaced when worn to _____________ of its original diameter.

a. 1/4b. 1/2c. 5/8d. 3/4

5. Hands and arms should be protected by wearing ____________ when using the portable disc grinder.

a. glovesb. long sleeved shirtc. long sleeved leather jacketd. long sleeved leather gloves.

6. What can the operator expect to happen when the wire brush attachment is used on the portable disc grinder?

a. The grinder may jump or be thrown about.b. The grinder rocks back and forth.c. The grinder stays steady on the material being bushed.

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d. The grinder perform well.

7. When the portable disc grinder is laid down, it should be positioned _____________.

a. with the disc down.b. on its left side.c. on its right side.d. on the tool rest with the grinding disc facing up.

8. What is the minimum size of electrical extension cord should be used with most portable disc grinders?

a. #14b. #12c. #10d. #8

9. Why is it only necessary to tighten the disk lock nut snuggly when the disc is replaced on the portable disc grinder?

a. The threads will be stripped on the spindle.b. The disc may be too difficult to remove the next time.c. The natural rotation of the disc and spindle will cause the threads

to tighten.d. To allow the loose threads to absorb some of the vibration

created by the portable disc grinder.

10. What can the operator do to avoid hand and finger fatigue when using the portable disc grinder for extended periods of time?

a. Eat lots of carbohydrates.b. Drink plenty of water.c. Wear long sleeved glovesd. Use the switch lock.

PERFORMANCE TEST


Portable Electric Drill

Name _________________ Date________________ Year/Sec:____________

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The student performs the following while operating the portable electric drill.Yes No

1. Safety glasses are worn while the portable electric drill is being used.

2. The portable drill is unplugged while the drill bit is being changed.

3. The drill bit is tight in the chuck, runs true, and the chuck wrench has been removed from the chuck key before the drilling operation begins.

4. The portable electric drill is held firmly in both hands as the switch is turned on and as the hole is being drilled.

5. The portable electric drill has stopped rotating before the drill is laid down.

6. The portable electric drill is positioned so that chips are thrown away from the operator and others working in the area.

7. The electrical cord and extension cord(s) are positioned away from the work being performed.

8. The student can properly select, remove and replace bits on the portable electric drill.

9. The correct drill speed is selected for the type of material being drill.

10.

The student can safely control the portable electric drill and perform satisfactory drill work.

Comments: _________________________________________________________ _________________________________________________________

I do hereby certify that the student has satisfactorily demonstrated ability to operate the portable electric drill by passing this performance test.

Conformed: Attested:

_________________ __________ _______________ _______ Student Date Teacher Date

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Learning Outcome 2: Prepare Hydraulic Tools


1. Parts and functions of hydraulic tools are identified in accordance to manufacturer’s manual.

2. Hydraulic tools are inspected for damage in line with a prescribed checklist.

3. Defective parts/components/accessories are replaced according to manufacturer’s specification

References: :

1. Mulin, R.C., Smith R.L. Electrical Wiring-Commercial, Six Ed., New York: Delmar’s Publishing Inc.; 1984, pp.

2. Agpoa, Feleciano. Interior and Exterior Wiring Troubleshooting ; National Bookstore: 1991




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Learning Outcome # 2: Prepare Hydraulic Tools


1. Read: Information sheet # 2 in this module


2. Listen to the teacher’s demonstration and answer the attached activity sheet # 01 and list the different kinds of defects of electrical tools.

Observe and write the different kinds of defect of electrical tools from the teacher’s demonstration.

3. Read activity sheet # 1 and listen to teacher’s presentation

Follow the procedure, label the good and defective tools, and report the defective tools to the teacher’s.

4. Perform Job Sheet No. 1 Bend a 90-Degree Stub Using a Hydraulic Pipe Bender


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PREPARE HYDRAULIC TOOLS

Hydraulic means using pressurized fluid oil to accomplish work.

Hydraulic oil is a specially formulated oil for hydraulic pumps.(Note: No oil or fluid should ever be substitute for hydraulic oil.)

Chuck is a portion of drill that holds the bit.

Ram is a device used to transfer hydraulic pressure to a mechanical device

Hydraulic Pipe Bender

Safety rules in using hydraulic pipe bender

Never substitute brake fluid for hydraulic oil. Never disconnect the hose when it is under pressure. Never place hands near ram or shoe while bending. Always use proper size conduit shoe and support. Be sure that floor area is clear for pipe movement. Lift heavy bender parts correctly. Make sure that the shoe, follow bar, saddle, pipe support and other

accessories are appropriate for the size of the size and type being bent.

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Figure 1. Parts of a Hydraulic Pipe Bender

Hydraulic Knockout Set

Safety rules for using hydraulic knockout sets

Never substitute brake fluid for hydraulic oil. Do not near live electrical parts. Never force the pump handle. Always wear eye protection.

Dieless Hydraulic CrimperNote: This model has a hinged crimping head for easy splice loading and Unloading. The crimper swivel head also rotates 180 degrees for flexibility.

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Figure 2. Parts of a Hydraulic Knockout Set

Safety rules in using hydraulic crimpers

Ensure that die is mounted securely on threading machine. Keep die flooded with cutting oil during operation. Keep hands, clothing and hair away from rotating parts. Always wear eye protection.

Portable Power Threader

Portable Power Tool Safety

If you have spent your day operating a drill press, your hand drill may not seem like a particularly dangerous tool. Not true. It is estimated that about 8% of industrial accidents involve the unsafe use of hand tools (both manual and power). These accidents result from using the wrong tool for the job (or

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Figure 3. Parts of a Dieless Hydraulic Crimper

Figure 4. Parts of a Portable Power Threader

using the right tool incorrectly), failing to wear personal protective equipment, or failing to follow approved safety guidelines. The following checklist provides some basic rules for the safe use of portable power tools. Take a moment to review this list, and use the tips here whenever you use a portable power tool--on or off the job.

Power Tool Rules

Use your tool only for the specific task it was designed to do. Read the owner's manual before using your tool. Never use any tool--power or manual--unless you are trained to

do so. Inspect before each use and replace or repair if parts are worn or

damaged. Inspect screws, nuts, bolts and moveable parts to make sure they

are tightened. Before plugging or unplugging tools, be sure power switch is

turned "OFF." Never disconnect power by pulling on the cord--remove the plug

from the outlet. Never clean or repair a tool unless power is disconnected. (Repair

tools only if you are trained to do so.) When working on ladders or scaffolding, rest power tools on a flat

surface or in a bin secured to the ladder itself. ( A falling tool can seriously injure a coworker or bystander.)

Use a ground fault circuit interrupter when working with power tools.

Do not wear rings, jewelry, or loose clothing when operating power tools.

Wear Personal Protective Equipment (PPE) such as face shields, safety goggles, disposable masks, etc. as required.

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JOB SHEET 2.1

Bend a 90-Degree Stub Using a Hydraulic Pipe Bender

Name ________________________________________ Attempt Number ____

Date _________________________________________ Overall Rating ____

Instruction: When you are ready to perform this task, ask your teacher to observe the procedure and rate your performance using the above criteria.

Equipment and Materials

Hydraulic pipe bender 5 feet of 1-inch rigid galvanized conduit Tape Marking pencil

Procedure (NOTE: The procedures that follow are especially for a Greenlee #880 bender. Other benders may vary in measurements, but the procedure will be basically the same.)

1. Assemble hydraulic bender using a 1-inch shoe and pipe support.

2. Check chart on bender for minimum stub length, required deduction for stub, and ram travel measurement. Record the data.

Minimum stub length = _____________________

Stub deduction= ___________________________

Ram travel= ___________________________

3. Mark stub length (24 inches) on pipe.

4. Subtract stub deduction measurement from 24-inch mark, and make a second mark at that point.

5. Place the pipe in bender shoe, matching center mark of shoe with 6. second mark on pipe.

7. Close hydraulic pump valve, and pump handle until ram travel gauge indicates amount of travel for a 1-inch pipe with a 90-degree bend.

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8. Release hydraulic pump valve and allow ram to return fully before removing pipe.

9. Check height of stub and accuracy for evaluation.

10. Disassemble bender, clean work area and return equipment and materials to their proper places.

Assessment CriteriaRating

Appropriate equipment and materials are gathered and used in line with the job requirements.

The procedure is safely performed.

The procedure is followed in chronological order.

Work area is cleaned.

Teacher Comments:

___________________________________________________ ___________________________________________________

___________________________________________________

ACTIVITY SHEET 2.1

PREPARE HYDRAULIC TOOLS

Procedure in checking the condition of tools.

Specific Instruction:

1. Follow the procedure in checking the condition of electrical tools.

2. Label the good and defective electrical tools.

3. Report to the teacher the defective electrical tools.

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Course BUILDING WIRING INSTALLATION

Unit of Competency

PREPARE ELECTRICAL POWER AND HYDRAULIC TOOLS

Module Title Preparing Electrical Power and Hydraulic Tools

Learning Outcome 3: Store electrical power and hydraulic tools


1. Electrical and Hydraulic tool are stored in line with the manufacturer’s requirements

2. Safety procedure in storing tools is strictly followed according to occupational health and safety procedure.

3. Electrical tools and equipment are safely stored in line with enterprise requirements.

4. Tools are properly kept to its classification5. Damaged tools are reported.

References:

1. Handley, William, Industrial Safety Handbook, McGraw-Hill Book Co.; 1977, pp.

2. Hubert, Charles I. Preventive Maintenance of Electrical Equipment – 2nd Ed., New York: McGraw Hill Book Co.; 1974, pp.




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Learning Outcome # 3: Store Electrical Power and Hydraulic Tools


1. Read: Information sheet # 3 You can ask the assistance of your teacher to show you and explain further topic you can’t understand.

2. Answer self-check Check your answer by using the answer key

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STORE ELECTRICAL POWER AND HYDRAULIC TOOLS

Power Tool Safety Rules

Safety, within the shop and beyond, is an ongoing concern for every vocational teacher. Teaching young people to respect power tools and take hazards and safety procedures to heart represents a continual challenge and a serious responsibility. Some students come to class having never before seen a power tool. Others have received poor instruction or downright bad advice and mistakenly think they “know what they are doing.” It’s essential that both groups gain from you a solid foundation in modern power tool safety practices that they can use in class and throughout their lives. To avoid accidents, power tool operators must be knowledgeable and thoroughly prepared. Inexperienced, untrained, and unprepared operators can be injured within minutes of attempting to use a power tool.

Every tool has its rules and precautions that apply to it. In the case of power tools, many of these are the same for each tool every time. Learn these by heart and you’ll always be off to a safe start.

Always read, understand and follow the Instruction Manual before attempting to use any power tool in any way. Also read the nameplate information and follow the warning labels on the tool itself.

Always wear safety goggles or safety glasses with side shields. Use a dust mask for dusty operations, and wear hearing protection if you’ll be using the tool for an extended period of time.

Dress right, and remember that looks don’t count. No loose-fitting clothing, no neckties, no jewelry, no dangling objects of any kind. Long hair must be tied back out of your way. Non-slip footwear is recommended.

Make sure your work area is neat and clean and free of any debris that might get in your way or be ignited by hot tools, chips or sparks.

Make sure your work area has plenty of bright, shadow-free light.

Before you plug in any power tool, make sure the power switch is off.

Be sure all appropriate guards are in place and working.

Always turn off and unplug the tool before you make any adjustments or change accessories.

Never use any accessory except those specifically supplied or recommended by the manufacturer. They should be described in the tool’s Instruction Manual.

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Never use power tools in wet or damp conditions.

Never use a tool that is damaged or malfunctioning in any way.

Need an extension cord? Make sure it’s a heavy-duty cord and don’t use indoor rated cords outside. If the tool has a three-pronged plug, make sure you use a three-pronged extension cord plugged into a three pronged outlet.

Never use power tools if you are tired, sick, distracted, or under the influence of drugs or alcohol.

Make sure cutters or blades are clean, sharp and securely in place. Never use bent, broken, or warped blades or cutters.

Never overreach when using a power tool. Stay firmly planted on both feet.

Never rush what you are doing. Always pay close attention. Don’t let anything distract you. Think ahead!

When using hand-held power tools, always keep a firm grip with both hands. Losing control creates a hazardous situation. Do not use any tool that is too heavy for you to easily control.

Always use the right tool for the right job. No substitutions allowed!

Always unplug, clean and store the tool in a safe, dry place when you are finished using it.

Safety Symbols

Your power tool and its Owners Manual may contain "WARNING ICONS" (a picture symbol intended to alert you to, and/or instruct you how to avoid, a potentially hazardous condition). Understanding and heeding these symbols will help you operate your tool better and safer.

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SAFETY ALERT(Potential Personal Injury Hazards)

PROHIBITION

31

DANGER: indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING: indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION: indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION: used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided,may result in property damage

WEAR EYE PROTECTION

SELF-CHECK 3.1

1. CAUTION: used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

2. DANGER: indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

3. CAUTION: indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

4. READ AND UNDERSTAND INSTRUCTION MANUAL

5. WARNING: indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

6. SAFETY ALERT (Potential Personal Injury Hazards)

7. PROHIBITION

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READ AND UNDERSTAND INSTRUCTION MANUAL

BA

E

33

C D

F

G

H

ASSESSMENT PLAN


Unit of Competency: PREPARE ELCTRICAL POWER AND HYDRAULIC TOOLS


Assessment Criteria

Assessment Methods

Dem

onst

ratio

n

Ob

serv

ati

on

Ora

l Q

uesti

on

ing

Wri

tten

Test*

Work

S

am

ple

LO 1. Prepare electrical power tools

1. Parts of electrical power tools are identified in accordance to manufacturer’s manual.

2. Electrical power tools are inspected for damage in line with a prescribed checklist.

3. Defective parts /components/accessories are replaced according to manufacturer’s specification.

4. Electrical power tool is stored in line with the manufacturer’s requirements.

LO 2. Prepare hydraulic tools

1. Parts and functions of hydraulic tools are identified in accordance to manufacturer’s manual.

2. Hydraulic tools are inspected for damage in line with a prescribed checklist.

3. Defective parts /components/accessories are replaced according to manufacturer’s specification

LO 3. Store electrical power and hydraulic tools

1. Electrical and Hydraulic tools are stored in line with the manufacturer’s requirements.

2. Safety procedure in storing tools is strictly followed according to occupational health and safety procedure.

3. Electrical tools and equipment are safely stored in line with prescribed requirements.

4. Tools are properly kept to their classification

5. Damaged tools are reported.

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Observation Checklist

Student’s name:

Teacher’s name:

Name of School:

Competency standards

Unit of competency:

Instructions for the assessor:

1. Observe the student [insert description of activity being observed].2. Describe the assessment activity and the date on which it was undertaken.3. Place a tick in the box to show that the candidate completed each aspect of

the activity to the standard expected in the enterprise.4. Complete the feedback sections of the form.

Date of observation

Description of assessment activity

Location of assessment activity

The student…. If yes, tick the box

can

Did the student’s overall performance meet the standard?

Yes No

Feedback to student:

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Teacher’s signature: Date:

36

Observation and Questioning Checklist

Student’s name:

Teacher’s name:

Name of School:


Unit of competency:

Instructions for the teacher:

1. Observe the student [insert description of activity being observed].2. Describe the assessment activity and the date on which it was undertaken.3. Place a tick in the box to show that the student completed each aspect of the

activity to the standard expected in the enterprise.4. Ask the student a selection of the questions from the attached list to confirm

his/her underpinning knowledge5. Place a tick in the box to show that the student answered the questions

correctly.6. Complete the feedback sections of the form.

Date of observation

Description of assessment activity

Location of assessment activity

The student…. If yes, tick the box can

Did the student’s overall performance meet the standard?

Yes No

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Demonstration

Student’s name:

Teacher’s name:

Unit of competency:

Competency standards:

Date of assessment:

Time of assessment:

Instructions for demonstration

Given the necessary materials the trainee/student must be able to:

Materials and equipment:

P to show if evidence is demonstrated

During the demonstration of skills, did the student:

Yes No N/A

o o oo o oo o oo o o

The student’s demonstration was:

Satisfactory q Not Satisfactory q

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Written report

Student’s name:

Teacher’s name:

Name of School:


Unit of competency:

Task:

Your task is to: [insert description of task]

Submission date:

Use the checklist below as a basis for judging whether the student’s report meets the required competency standards.

The student’s report…. If yes, tick the box

Overall did the student’s report meet the standard?

Yes No

Comments:

Student’s signature:

Date:

Teacher’s signature:

Date:

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PERFORMANCE TEST

Student's Name Date

Competency: Test Attempt 1st 2nd 3rd

Directions: CALL TEACHER, ask teacher to assess your performance in the following critical task and performance criteria below

You will be rated based on the overall evaluation on the right side.

OVERALL EVALUATIONLevel

Achieved PERFORMANCE LEVELS

4 - Can perform this skill without supervision and with initiative and adaptability to problem situations.

3 - Can perform this skill satisfactorily without assistance or supervision.

2 - Can perform this skill satisfactorily but requires some assistance and/or supervision.

1 - Can perform parts of this skill satisfactorily, but requires considerable assistance and/or supervision.

Teacher will initial level achieved.

PERFORMANCE STANDARDSFor acceptable achievement, all items should receive a "Yes" or "N/A" response. Ye

sNo

N/A

Get from Performance criteria of the module

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ANSWER KEY


Self-Check No. 1.1

1. E 2. C 3. D 4. G 5. H 6. B 7. F 8. A

Self-Check No. 1.2

1. A 2. A3. D 4. C 5. B 6. C 7. B 8. D

Self-Check No. 1.3

1. A2. A 3. D 4. C 5. B 6. C 7. D 8. A 9. C 10. D

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ANSWER KEY

42

STORE ELECTRICAL POWER AND HYDRAULIC TOOLS

Self-Check No. 3.1

1. E 2. C 3. D 4. G 5. H 6. B 7. F 8. A

Module 6 - Preparing Electrical Power and Hydraulic Tools

Documents

Transcript of Module 6 - Preparing Electrical Power and Hydraulic Tools