Delta 23-840 - Manual (Page 3)

3
ADDITIONAL SAFETY RULES FOR GRINDERS
1. DO NOT OPERATE your tool until it is completely assem-
bled and installed according to the instructions.
2. IF YOU ARE NOT thoroughly familiar with the oper-
ation of grinders, obtain advice from your supervisor,
instructor or other qualified person.
3. USE only grinding wheels rated for 3600 RPM with a
1/2" arbor hole. NEVER use a wheel rated lower than
3600 RPM or attempt to machine an undersize wheel to
fit an arbor.
4. NEVER use a chipped or cracked grinding wheel.
ALWAYS inspect each wheel before mounting on the
grinder. REPLACE A CRACKED WHEEL IMMEDIATE-
LY.
5. DO NOT overtighten wheel nut.
6. ALWAYS maintain a distance of 1/8" or less between
the grinding wheel and the tool rest. Adjust the tool rests
as the grinding wheels decrease in size with use.
7. SECURELY tighten tool rests so they cannot shift
position while in use.
8. NEVER grind on a cold wheel. The grinder should
always be started and run at idle speed for one full
minute before applying work.
9. NEVER grind on the side of the wheel. ALWAYS
grind on the face of the wheel only.
10. NEVER apply coolant directly to a grinding wheel.
Coolant can weaken the bonding strength of the wheel
and cause it to fail. Dip the workpiece into water to cool
it.
11. SPARKS ARE A HAZARD! NEVER grind near flam-
mable gas or liquids.
12. ALWAYS MAKE SURE the wheel guards and eye
shields are in place, properly adjusted and secured.
13. KEEP the spark guards close to the wheel and re-
adjust them as the wheel wears.
14. MAKE CERTAIN the blotter and wheel flanges furn-
ished are used to mount the grinding wheels onto the
grinder shaft.
15. STAND to one side of the wheel when turning on the
power.
16. AVOID awkward hand positions where a sudden slip
could cause a hand to move into the grinding wheel.
17. ALWAYS keep hands and fingers away from the
grinding wheel.
18. NEVER start the grinder with the workpiece pressed
against the grinding wheel.
19. DRESS the wheel on the face only. Dressing the side
of the wheel can cause it to become too thin for safe use.
20. DO NOT use a wheel that vibrates. Dress the wheel,
replace the wheel, or replace the shaft bearings, if worn.
21. GRINDING CREATES HEAT. Do not touch the
workpiece until you are sure it has cooled sufficiently.
22. REDUCE THE RISK of unintentional starting. Move
switch to the “OFF” position in the event of a power
failure.
23. ALWAYS keep guards in place when using a wire
brush or buffing wheel in place of the standard grinding
wheel.
24. SHOULD any part of your grinder be missing, dam-
aged, or fail in any way, or any electrical component fail
to perform properly, shut off switch and remove plug
from power supply outlet. Replace missing, damaged or
failed parts before resuming operation.
25. ADDITIONAL information regarding the safe and
proper operation of this product is available from the
National Safety Council, 1121 Spring Lake Drive, Itasca,
IL 60143-3201 in the Accident Prevention Manual for
Industrial Operations and also in the Safety Data Sheets
provided by the NSC. Please also refer to the American
National Standards Institute ANSI B7.1 Safety
Requirements for the use, care, and protection of abra-
sive wheels; ANSI B11.9 Safety Requirements for the
construction, care and use of grinding machines; and the
U.S. Department of Labor OSHA 1910.215 Regulations
for Abrasive Wheel Machinery.