Chicago Electric 42934 Assembly And Operating Instructions Manual

Brand: Chicago Electric

Model: 42934

Category: Power tools

Type: Assembly And Operating Instructions Manual

ANGLE GRINDER - 5 INCH

WITH METAL CASE

ASSEMBLY and OPERATING

INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www.harborfreight.com

this manual or any artwork contained herein may be reproduced in any shape

or form without the express written consent of Harbor Freight Tools.

For technical questions and replacement parts, please call 1-800-444-3353

42934

Page 2SKU 42934

Specications

ITEM DESCRIPTION

Power Consumption 120V, 60 Hz, single phase, 780 Watts

Motor 9,500 RPM

Spindle 5/8 inches x 11 TPI with lock

Arbor 7/8 inch

Switch Paddle type

Wheel 5 inch diameter

Line Cord 8 foot, 18 gauge, 2-prong, polarized

Weight 7.92 lbs

Features

3-position handle

Heavy duty steel wheel guard

Lock-on switch button

Save This Manual

You will need the manual for the safety warnings and precautions, assembly instructions,

operating and maintenance procedures, parts list and diagram. Keep your invoice with this

manual. Write the invoice number on the inside of the front cover. Keep the manual and

invoice in a safe and dry place for future reference.

Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to

reduce the risk of personal injury and damage to equipment.

Read all instructions before using this tool!

1. Keep work area clean. Cluttered areas invite injuries.

2. Observe work area conditions. Do not use machines or power tools in damp or wet

locations. Don’t expose to rain. Keep work area well lighted. Do not use electrically

powered tools in the presence of ammable gases or liquids.

3. Keep children away. Children must never be allowed in the work area. Do not let

them handle machines, tools, or extension cords.

4. Store idle equipment. When not in use, tools must be stored in a dry location to

inhibit rust. Always lock up tools and keep out of reach of children.

5. Do not force tool. It will do the job better and more safely at the rate for which it

was intended. Do not use inappropriate attachments in an attempt to exceed the tool

capacity.

6. Use the right tool for the job. Do not attempt to force a small tool or attachment to

do the work of a larger industrial tool. There are certain applications for which this tool

was designed. Do not modify this tool and do not use this tool for a purpose for which

it was not intended.

Rev 09/00

Page 3SKU 42934

7. Dress properly. Do not wear loose clothing or jewelry as they can be caught in

moving parts. Protective, electrically non-conductive clothes and non-skid footwear

are recommended when working. Wear restrictive hair covering to contain long hair.

8. Use eye and ear protection. Always wear ANSI approved impact safety goggles.

Wear a full face shield if you are producing metal lings or wood chips. Wear an ANSI

approved dust mask or respirator when working around metal, wood, and chemical

dusts and mists.

9. Do not overreach. Keep proper footing and balance at all times. Do not reach over

or across running machines.

10. Maintain tools with care. Keep tools sharp and clean for better and safer

performance. Follow instructions for lubricating and changing accessories. Inspect

tool cords periodically and, if damaged, have them repaired by an authorized

technician. The handles must be kept clean, dry, and free from oil and grease at all

times.

11. Disconnect power. Unplug tool when not in use.

12. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches

are removed from the tool or machine work surface before plugging it in.

13. Avoid unintentional starting. Be sure the switch is in the Off position when not

in use and before plugging in. Do not carry any tool with your nger on the trigger,

whether it is plugged in or not.

14. Stay alert. Watch what you are doing, use common sense. Do not operate any tool

when you are tired.

15. Take caution as some woods contain preservatives such as copper chromium

arsenate (CCA) which can be toxic. When cutting these materials extra care should

be taken to avoid inhalation and minimize skin contact.

16. Check for damaged parts. Before using any tool, any part that appears damaged

should be carefully checked to determine that it will operate properly and perform its

intended function. Check for alignment and binding of moving parts; any broken parts

or mounting xtures; and any other condition that may affect proper operation. Any

part that is damaged should be properly repaired or replaced by a qualied technician.

Do not use the tool if any switch does not turn On and Off properly.

17. Guard against electric shock. Prevent body contact with grounded surfaces such

as pipes, radiators, ranges, and refrigerator enclosures. Replace the Line Cord if cut,

burnt, or the wires are exposed.

18. Replacement parts and accessories. When servicing, use only identical

replacement parts. Use of any other parts will void the warranty. Only use accessories

intended for use with this tool. Approved accessories are available from Harbor

Freight Tools.

19. Do not operate tool if under the inuence of alcohol or drugs. Read warning

labels on prescriptions to determine if your judgment or reexes are impaired while

taking drugs. If there is any doubt, do not operate the tool.

Page 4SKU 42934

20. Use proper size and type extension cord. If an extension cord is required, it must

be of the proper size and type to supply the correct current to the tool without heating

up. Otherwise, the extension cord could melt and catch re, or cause electrical

damage to the tool. This tool requires use of an extension cord of 0 to 10 amps

capability (up to 50 feet), with wire size rated at 18 AWG. Longer extension cords

require larger size wire. If you are using the tool outdoors, use an extension cord

rated for outdoor use. (signied by “WA” on the jacket).

21. Do not abuse Line Cord. Never carry the tool by the Line Cord or disconnect the plug

from the electrical outlet by pulling on the Line Cord. Do not cut the Line Cord or place

near heat that could melt it.

22. Secure the material being cut. Never use your hands to hold the material while

grinding or cutting. Keep one hand on the Handle and the other on the body of the

Angle Grinder at all times during operation.

23. Never use the tool without the Wheel Safety Guard in place. If the wheel breaks

apart, ying pieces could cause personal injury.

24. Use the proper grinding or cutting wheels. Use wheels rated for the speed of this

tool. Otherwise, the wheels could y apart and cause injury.

25. Do not grind or sand lead-based paints. Lead-based paints are hazardous to your

health and should only be removed by a professional.

26. Maintenance. For your safety, service and maintenance should be performed

regularly by a qualied technician.

Note: Performance of this tool may vary depending on variations in local line voltage. Exten-

sion cord usage may also affect tool performance.

Warning: The warnings, cautions, and instructions discussed in this instruction manual

cannot cover all possible conditions and situations that may occur. It must be under-

stood by the operator that common sense and caution are factors which cannot be

built into this product, but must be supplied by the operator.

Unpacking

When unpacking, check to make sure the following parts are included: Angle Grinder,

Wrench, Metal Case, and Handle. Refer to the Parts List and Assembly Drawing at the end

of this manual. If any parts are missing or broken, please call Harbor Freight Tools at the

number on the cover of this manual as soon as possible.

Assembly

WARNING: Always use an approved and proper guard when using the recommended

accessories (listed at the bottom of page 5). Each accessory must have the correct

arbor size and must t properly on the shoulder bushing. Make sure accessories are

tightened down securely. Never install a carbide tipped or steel circular saw blade for

use on this Angle Grinder. Never install a wood carving blade, carving disc with saw

chain cutters, or a cutting-carving disc.

Page 5SKU 42934

Mounting the Wheel Accessory and Handle

WARNING: Disconnect the electrical power before following this procedure.

1. Turn the Angle Grinder over to expose the Clamp Nut (42) and Backup Flange (41).

2. Press the Spindle Lock (28) button and turn the Clamp Nut (42) by hand until the lock

engages and the Spindle (34) does not turn.

3. Keep pressing the Spindle Lock button, and using the Wrench (54), loosen the Clamp

Nut by turning it counterclockwise.

4. Remove the Clamp Nut and place the accessory wheel over the Spindle, on top of the

Backup Flange (41).

5. Replace the Clamp Nut and tighten clockwise using the Wrench.

6. Screw in the Handle (44) into the hole on the right, left, or top of the Gear Cover (31).

See the photos above.

The Angle Grinder is ready for use.

Operation

WARNING: There are certain applications for which this tool was designed. Harbor

Freight Tools strongly recommends that this tool not be modied and/or used for any

application other than which it was designed. All accessories must be rated for at least

the RPM speed recommended on the tool’s warning label. Wheels and other accessories

running over their rated speed can y apart and cause injury.

For safest operation, it is recommended that only these accessories be used with this

product: Abrasive Cut-off Discs and Wheels, Flap Wheels, Wire Brushes, and Wire

Wheel Brushes.

Clamp Nut (42)

Backup Flange (41)

Spindle Lock (28)

Handle (44)

Page 6SKU 42934

1. Plug the Line Cord into the electrical outlet, or into an approved extension cord.

2. Grasp the Handle with one hand, and the body with the other hand.

The Angle Grinder must be used with the Guard in between you and the grinding

wheel. If may be necessary to loosen, rotate, and retighten the Guard to achieve this

position.

3. Press down on the Trigger (3).

The motor will start. Allow the motor to attain full speed before grinding.

4. For cutting or grinding, approach the material at an angle between 15 and 30 degrees

to the wheel. Maintain that angle until the cutting is complete.

Let the wheel do the work. Never apply too much pressure.

5. Optionally, to lock the Trigger in the ON position, slide the Trigger tab back.

6. When nished working, let go of the Trigger to turn it OFF.

If the Trigger was locked ON, press the Trigger in to unlock it, and the let go, turning

the unit OFF.

7. Hold the tool with both hands until the motor stops, then set it down.

Maintenance

1. Periodically blow out the motor air vents with compressed air to keep clean.

2. All plastic parts should be cleaned with a clean damp cloth.

Never use solvents.

3. Over time, if the performance of the tool diminishes, or it stops working completely, it

may be necessary to replace the motor’s Carbon Brush Assembly (8, 19, 1, and 20).

This procedure must be completed by a qualied technician.

4. When not in use, store the Angle Grinder in it’s metal box and store in a clean and dry

location (away from the hands of children).

5. Under normal operating conditions, lubrication is not required.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN

THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DIS-

TRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER

THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE

OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANU-

FACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS

REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS

AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF

HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO,

OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.

Page 7SKU 42934

Parts List

Item # Description Qty

1 Tapping Screw 4

2 Right End Cover 1

3 Trigger 1

4 Anti-self-lock Button 1

5 Power Spring 1

6 Power Pin 1

8 Carbon Brush 1

9 Brush Strip 1

10 Line Cord 1

11 Switch 1

12 Cord Protector 1

13 Contact Strip 2

14 Terminal 2

15 Lock Button 1

16 Housing 1

17 Sleeve Bearing 1

18 Brush Holder 2

19 Brush Spring 2

20 Brush Ring 1

21 Name Plate 1

22 Left End Cover 1

23 Plastic Screw 2

24 Stator 1

25 Fan Bafe 1

26 Washer 1

27 O-ring 1

Item # Description Qty

28 Spindle Lock 1

29 Spring 1

30 Tapping Screw 4

31 Gear Cover 1

32 Needle Bearing 1

33 Big Cone Gear 1

34 Spindle 1

35 Case Cover 1

36 Roll Bearing 1

37 Screw 3

38 Screw 4

39 Machine Screw 2

40 Guard Clamp 1

41 Backup Flange 1

42 Clamp Nut 1

43 Guard 1

44 Handle 1

45 Retaining Ring 1

46 Washer 1

47 O-ring 1

48 Mini Cone Gear 1

49 Roll Bearing 1

50 Bearing Retainer 1

51 Retaining Ring 1

52 Armature 1

53 Roller Bearing 1

54 Wrench 1

NOTE: Some parts are listed and shown

for illustration purposes only and are not

available individually as replacement parts.

Page 8SKU 42934

Assembly Drawing

Chicago Electric 42934 Assembly And Operating Instructions Manual

Brand: Chicago Electric

Model: 42934

Category: Power tools

Type: Assembly And Operating Instructions Manual

Download PDF

report

Chicago Electric 42934 Assembly And Operating Instructions Manual

Chicago Electric 42934 Assembly And Operating Instructions Manual

Related papers

Other documents