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
Copyright © 2000 by Harbor Freight Tools. All rights reserved. No portion of
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
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Specications
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
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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 qualied 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 inuence of alcohol or drugs. Read warning
labels on prescriptions to determine if your judgment or reexes are impaired while
taking drugs. If there is any doubt, do not operate the tool.
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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. (signied 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 qualied 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.
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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 modied 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)
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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 qualied 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.
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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 Bafe 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.
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Assembly Drawing
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