Harbor Freight Tools 93088 User Manual
ANGLE DIE GRINDER
Model
93088
SET UP AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright© 2005 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 or replacement parts, please call 1-800-444-3353.
Cover Revised 07i
SPECIFICATIONS
Air Requirements 3 CFM
Collet ¼”
Maximum RPM 20,000
Working Air Pressure 90 PSI
SAVE THIS MANUAL
You will need the manual for the safety warnings and cautions, assembly instructions, operating
procedures, maintenance procedures, trouble shooting, parts list, and diagram. Keep your invoice
with this manual. Write the invoice number on the inside of the front cover. Keep both this manual
and your invoice in a safe, dry place for future reference.
SAFETY WARNING & CAUTIONS
WARNING: When using pneumatic equipment, basic safety precautions should always be
followed to reduce the risk of personal injury and hazards due to over pressurization.
READ ALL INSTRUCTIONS BEFORE USING THIS TOOL!
KEEP WORK AREA CLEAN.1. Cluttered areas invite injuries.
OBSERVE WORK AREA CONDITIONS.2. Do not use tools in damp, wet, or poorly lit lo-
cations. Don’t expose to rain. Keep work area well lit. Do not use electrically powered air
compressors in the presence of flammable gases or liquids.
KEEP CHILDREN AWAY. 3. Children must never be allowed in the work area. Do not let
them handle machines, tools, or hoses.
STORE IDLE EQUIPMENT. 4. When not in use, tools must be locked up in a dry location to
inhibit rust. Always lock up tools and keep out of reach of children.
DO NOT FORCE THE TOOL.5. 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’s capacities.
USE THE RIGHT TOOL FOR THE JOB. 6. Do not attempt to force a small tool or attach-
ment to do the work of a larger industrial tool. Do not use a tool for a purpose for which it
was not intended.
DRESS PROPERLY.7. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Nonskid footwear is recommended. Wear restrictive hair covering to contain long hair.
USE EYE AND EAR PROTECTION.8. Always wear ANSI approved chemical splash gog-
gles when working with chemicals. Always wear ANSI approved impact safety goggles
at other times. 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.
REV 07k
SKU 93088 For technical questions, please call 1-800-444-3353. Page 2
DO NOT ABUSE THE POWER CORD.9. Do not yank compressor’s cord to disconnect it
from the receptacle. Do not carry tools by the cord.
DO NOT OVERREACH.10. Keep proper footing and balance at all times. Do not reach over
or across running machines.
MAINTAIN TOOLS WITH CARE.11. Keep tools sharp and clean for better and safer perfor-
mance. Follow instructions for lubricating and changing accessories. Inspect compressor’s cord periodically and, if damaged, have them repaired by an authorized technician.
Inspect all hoses for leaks prior to use. The handles must be kept clean, dry, and free
from oil and grease at all times.
REMOVE ADJUSTING KEYS AND WRENCHES.12. Make it a habit to check that keys and
adjusting wrenches are removed from the tool or machine work surface before plugging
it in.
AVOID UNINTENTIONAL STARTING. 13. Do not carry any tool with your nger on the trigger, whether it is connected to the compressor or not.
STAY ALERT.14. Watch what you are doing; use common sense. Do not operate any tool
when you are tired.
CHECK DAMAGED PARTS.15. 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.
REPLACEMENT PARTS AND ACCESSORIES.16. 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.
DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS. 17.
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.
DRAIN COMPRESSOR EVERY DAY. 18. Do not allow moisture to build up inside the com-
pressor. Do not allow compressor to sit pressurized for longer than one hour.
MAKE SURE ALL EQUIPMENT IS RATED TO THE APPROPRIATE CAPACITY. 19. Make
sure that regulator is set at least 10 PSI lower than the lowest rated piece of equipment
you are using.
SKU 93088 For technical questions, please call 1-800-444-3353. Page 3
WARNING:20. Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities, contains chemicals known [to the State of California] to cause
cancer, birth defects or other reproductive harm. Some examples of these chemicals
are:
• Lead from lead-based paints
• Crystalline silica from bricks and cement or other masonry products
• Arsenic and chromium from chemically treated lumber
Your risk from these exposures varies, depending on how often you do this type of work.
To reduce your exposure to these chemicals: work in a well ventilated area, and work
with approved safety equipment, such as those dust masks that are specially designed
to lter out microscopic particles. (California Health & Safety Code § 25249.5, et seq.)
UNPACKING
When unpacking your Angle Die Grinder, check the items against the list below. If any parts are
missing or broken, please call Harbor Freight Tools at the number on the cover of this manual.
Item Description Qty
N/A Die Grinder Assembly 1
N/A Wrench 2
31 Collet 1
32 Collet Nut 1
Grinding Attachment Installation
Select the Grinding Attachment appropriate for your needs.1.
Select the COLLET (31) that has the same diameter as the Grinding Attachment. 2.
The diameter will be either ¼” or 1/8”.
Collet Nut (32)
Figure 1 — Inserting the Collet
3. Insert the COLLET into the COLLET NUT (32) as shown in Figure 1.
Thread the COLLET NUT onto the CHUCK CASING (29) a few turns.4.
REV 08e; 08g
SKU 93088 For technical questions, please call 1-800-444-3353. Page 4
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