Delta 23-645, 23-640 User Manual

INSTRUCTION MANUAL

6" Bench Grinders

(Model 23-640 & 23-645)

PART NO. 900464 (011)

Copyright © 2001 Delta Machinery

ESPAÑOL: PÁGINA 11

To learn more about DELTA MACHINERY
visit our website at: www.deltamachinery.com.

For Parts, Service, Warranty or other Assistance,
please call

1-800-223-7278 (In Canada call 1-800-463-3582).

2

SAFETY RULES

Woodworking can be dangerous if safe and proper operating procedures are not followed. As with all machinery, there
are certain hazards involved with the operation of the product. Using the machine with respect and caution will
considerably lessen the possibility of personal injury. However, if normal safety precautions are overlooked or ignored,
personal injury to the operator may result. Safety equipment such as guards, push sticks, hold-downs, featherboards,
goggles, dust masks and hearing protection can reduce your potential for injury. But even the best guard won’t make
up for poor judgment, carelessness or inattention. Always use common sense and exercise caution in the workshop.
If a procedure feels dangerous, don’t try it. Figure out an alternative procedure that feels safer. REMEMBER: Your
personal safety is your responsibility.

This machine was designed for certain applications only. Delta Machinery strongly recommends that this machine not
be modified and/or used for any application other than that for which it was designed. If you have any questions relative
to a particular application, DO NOT use the machine until you have first contacted Delta to determine if it can or should
be performed on the product.

Technical Service Manager

Delta Machinery
4825 Highway 45 North
Jackson, TN 38305

(IN CANADA: 505 SOUTHGATE DRIVE, GUELPH, ONTARIO N1H 6M7)

WARNING: FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS PERSONAL INJURY

1. FOR YOUR OWN SAFETY, READ INSTRUCTION

MANUAL BEFORE OPERATING THE TOOL. Learn the

tool’s application and limitations as well as the specific
hazards peculiar to it.

2. KEEP GUARDS IN PLACE and in working order.

3. ALWAYS WEAR EYE PROTECTION.

4. REMOVE ADJUSTING KEYS AND WRENCHES.

Form habit of checking to see that keys and adjusting
wrenches are removed from tool before turning it “on”.

5. KEEP WORK AREA CLEAN. Cluttered areas and

benches invite accidents.

6. DON’T USE IN DANGEROUS ENVIRONMENT. Don’t

use power tools in damp or wet locations, or expose them
to rain. Keep work area well-lighted.

7. KEEP CHILDREN AND VISITORS AWAY. All children

and visitors should be kept a safe distance from work area.

8. MAKE WORKSHOP CHILDPROOF – with padlocks,

master switches, or by removing starter keys.

9. DON’T FORCE TOOL. It will do the job better and be

safer at the rate for which it was designed.

10. USE RIGHT TOOL. Don’t force tool or attachment to
do a job for which it was not designed.

11. WEAR PROPER APPAREL. No loose clothing, gloves,
neckties, rings, bracelets, or other jewelry to get caught in
moving parts. Nonslip footwear is recommended. Wear
protective hair covering to contain long hair.

12.

ALWAYS USE SAFETY GLASSES. Wear safety

glasses. Everyday eyeglasses only have impact resistant
lenses; they are not safety glasses. Also use face or dust
mask if cutting operation is dusty. These safety glasses
must conform to ANSI Z87.1 requirements. Note:
Approved glasses have Z87 printed or stamped on
them.

13. SECURE WORK. Use clamps or a vise to hold work
when practical. It’s safer than using your hand and frees
both hands to operate tool.

14. DON’T OVERREACH. Keep proper footing and
balance at all times.

15. MAINTAIN TOOLS IN TOP CONDITION. Keep tools
sharp and clean for best and safest performance. Follow
instructions for lubricating and changing accessories.

16. DISCONNECT TOOLS before servicing and when
changing accessories such as blades, bits, cutters, etc.

17. USE RECOMMENDED ACCESSORIES. The use of
accessories and attachments not recommended by Delta
may cause hazards or risk of injury to persons.

18. REDUCE THE RISK OF UNINTENTIONAL
STARTING. Make sure switch is in “OFF” position before
plugging in power cord.

19. NEVER STAND ON TOOL. Serious injury could occur
if the tool is tipped or if the cutting tool is accidentally
contacted.

20. CHECK DAMAGED PARTS. Before further use of the
tool, a guard or other part that is damaged should be
carefully checked to ensure that it will operate properly and
perform its intended function – check for alignment of
moving parts, binding of moving parts, breakage of parts,
mounting, and any other conditions that may affect its
operation. A guard or other part that is damaged should be
properly repaired or replaced.

21. DIRECTION OF FEED. Feed work into a blade or
cutter against the direction of rotation of the blade or cutter
only.

22. NEVER LEAVE TOOL RUNNING UNATTENDED.
TURN POWER OFF. Don’t leave tool until it comes to a
complete stop.

23. DRUGS, ALCOHOL, MEDICATION. Do not operate
tool while under the influence of drugs, alcohol or any
medication.

24. MAKE SURE TOOL IS DISCONNECTED FROM
POWER SUPPLY while motor is being mounted,
connected or re-connected.

25. THE DUST GENERATED by certain woods and wood
products can be injurious to your health. Always operate
machinery in well ventilated areas and provide for proper
dust removal. Use wood dust collection systems whenever
possible.

26.

WARNING: SOME DUST CREATED BY
POWER SANDING, SAWING, GRINDING, DRILLING,
AND OTHER CONSTRUCTION ACTIVITIES contains

chemicals known 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 and other

masonry products, and

· 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 filter out
microscopic particles.

SAVE THESE INSTRUCTIONS

3

ADDITIONAL SAFETY RULES FOR GRINDERS

1. DO NOT OPERATE your tool until it is completely
assembled 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 flam­mable 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 re­adjust 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
work-piece until you are sure it has cooled sufficiently.

22. REDUCE THE RISK of unintentional starting. Make
sure switch is in the “OFF” position during 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 tool be missing, damaged,
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
abrasive 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.