Harbor Freight Tools 30304 User Manual
4" AIR ANGLE GRINDER
®
ASSEMBLY and OPERATING INSTRUCTIONS
3491 Mission Oaks Blvd. / Camarillo, CA 93011
Copyright © 1997 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.
SPECIFICATIONS
Air Pressure 90 PSI
Air Consumption 6 CFM
Air Inlet 1/4" NPT
Grinding Wheel 24 Grit, 4" x 1/8"
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!
1. KEEP WORK AREA CLEAN. Cluttered areas invite injuries.
2. OBSERVE WORK AREA CONDITIONS. Do not use tools in damp, wet, or poorly lit locations. 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.
3. KEEP CHILDREN AWAY. Children must never be allowed in the work area. Do not let them
handle machines, tools, or hoses.
4. STORE IDLE EQUIPMENT. 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.
5. DO NOT FORCE THE 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’s
capacities.
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. Do not use a tool for a purpose for which it was not
intended.
7. DRESS PROPERLY. Do not wear loose clothing or jewelry as they can be caught in moving
parts. Non-skid footwear is recommended. Wear restrictive hair covering to contain long hair.
8. USE EYE AND EAR PROTECTION. Always wear ANSI approved chemical splash goggles
when working with chemicals. Always wear ANSI approved impact safety goggles at other
times. Wear a full face shield if you are producing metal filings or wood chips. Wear an ANSI
approved dust mask or respirator when working around metal, wood, and chemical dusts
and mists.
9. DO NOT ABUSE THE POWER CORD. Do not yank compressor’s cord to disconnect it
from the receptacle. Do not carry tools by the cord.
10. DO NOT OVERREACH. Keep proper footing and balance at all times. Do not reach over or
across running machines.
11. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safer performance. 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.
Page #2 -- SKU: 30304
12. REMOVE ADJUSTING KEYS AND WRENCHES. Make it a habit to check that keys and
adjusting wrenches are removed from the tool or machine work surface before plugging it in.
13. AVOID UNINTENTIONAL STARTING. Do not carry any tool with your finger on the trigger,
whether it is connected to the compressor or not.
14. STAY ALERT. Watch what you are doing; use common sense. Do not operate any tool when
you are tired.
15. CHECK 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
fixtures; and any other condition that may affect proper operation. Any part that is damaged
should be properly repaired or replaced by a qualified technician. Do not use the tool if any
switch does not turn on and off properly.
16. 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.
17. DO NOT OPERATE TOOL IF UNDER THE INFLUENCE OF ALCOHOL OR DRUGS. Read
warning labels on prescriptions to determine if your judgment or reflexes are impaired while
taking drugs. If there is any doubt, do not operate the tool.
18. DRAIN COMPRESSOR EVERY DAY. Do not allow moisture to build up inside the compressor. Do not allow compressor to sit pressurized for longer than one hour.
19. MAKE SURE ALL EQUIPMENT IS RATED TO THE APPROPRIATE CAPACITY. Make
sure that regulator is set at least 10 PSI lower than the lowest rated piece of equipment you
are using.
UNPACKING
When unpacking your Air Angle 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 Angle Grinder Assembly 1
47 Handle 1
48 Wrench (A) 1
49 Wrench (B) 1
45 Grinding Wheel 1
Page #3 -- SKU: 30304
ASSEMBLY
Step 1: Thread the HANDLE (#47) into the side of the Angle Grinder as shown in Figure 1.
Tighten.
Angle Grinder Assembly
Handle (#47)
Figure 1 — Handle Assembly
Step 2: Remove the FLANGE NUT (#46) from the ARBOR (#4).
Warning:
There are certain applications for which this tool was designed. Harbor Freight Tools
strongly recommends that this tool not be modified 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 rated speed can fly
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 Wire Wheel Brushes
Always use an approved and proper guard when using the above mentioned accessories. Each accessory must have the correct arbor size and must fit properly on
the shoulder bushing. Make sure accessories are tightened down securely.
CAUTION: 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 ON THIS ANGLE GRINDER.
Page #4 -- SKU: 30304
REV 05/03
Loading...