Delta 23-980, 23-880 User Manual

8" and 10"

Bench Grinders

(Models 23-880 & 23-980)

The Serial No. and Model No. plate
is attached to the front of the
motor. Locate this plate and record
the Serial No. and Model No. in
your manual for future reference.
SERIAL NO.
MODEL NO.

INSTRUCTION MANUAL

PART NO. 1345338

© Delta International Machinery Corp. 1995

Dated 8-11-95

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 possiblity 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.

DELTA INTERNATIONAL MACHINERY CORP.

MANAGER OF TECHNICAL SERVICES

246 ALPHA DRIVE

PITTSBURGH, PENNSYLVANIA 15238

(IN CANADA: 644 IMPERIAL ROAD, GUELPH, ONTARIO N1H 6M7)

SAFETY RULES

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. GROUND ALL TOOLS. If tool is equipped with three­prong plug, it should be plugged into a three-hole electri­cal receptacle. If an adapter is used to accommodate a
two-prong receptacle, the adapter lug must be attached
to a known ground. Never remove the third prong.

5. REMOVE ADJUSTING KEYS AND WRENCHES.
Form habit of checking to see that keys and adjusting
wrenches are removed from tool before turning it “on.”

6. KEEP WORK AREA CLEAN. Cluttered areas and
benches invite accidents.

7. 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.

8. KEEP CHILDREN AND VISITORS AWAY. Children
and visitors should be kept a safe distance from work
area.

9. MAKE WORKSHOP CHILDPROOF - with padlocks,
master switches, or by removing starter keys.

10. DON'T FORCE TOOL. It will do the job better and be
safer at the rate for which it was designed.

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

12. 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.

13. ALWAYS USE SAFETY GLASSES. Wear safety glass­es (must comply with ANSI Z87.1). Everyday eyeglasses
only have impact resistant lenses; they are not safety
glasses. Also use face or dust mask if cutting operation is
dusty.

14. 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.

15. DON'T OVERREACH. Keep proper footing and bal­ance at all times.

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

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

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

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

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

21. 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.

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

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

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

25. MAKE SURE TOOL IS DISCONNECTED FROM
POWER SUPPLY while motor is being mounted, connect­ed or reconnected.

ADDITIONAL SAFETY RULES FOR GRINDERS

1. WARNING: Do not operate your grinder until it is
completely assembled and installed according to the

instructions.

2. IF YOU ARE NOT thoroughly familiar with the
operation of grinders, obtain advice from your supervisor,

instructor or other qualified person.

3. ALWAYS use grinding wheels that have a bore
exactly equal to the arbor of the grinder. NEVER 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 immediately.

5. ALWAYS maintain a distance of 1/8² or less
between the grinding wheel and the tool rest. Adjust the
tool rests as the grinding wheels decrease in size with
use.

6. SECURELY tighten tool rests so they cannot shift
position while in use.

7. NEVER grind on a cold wheel. The grinder should
always be started and run at idle speed for one full
minute before applying work.

8. NEVER grind on the side of the wheel. ALWAYS
grind on the face of the wheel only.

9. 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.

10. SPARKS ARE A HAZARD! NEVER grind near
flammable gas or liquids.

11. ALWAYS MAKE SURE the wheel guards and eye
shields are in place, properly adjusted and secured.

12. KEEP the spark guards close to the wheel and
re-adjust them as the wheel wears.

13. MAKE CERTAIN the blotter and wheel flanges
are used to mount the grinding wheels onto the grinder
shaft.

14. STAND to one side of the wheel when turning on
the power.

15. AVOID awkward hand positions where a sudden slip
could cause a hand to move into the grinding wheel.

16. ALWAYS keep hands and fingers away from the
grinding wheel.

17. NEVER start the grinder with the workpiece pressed
against the grinding wheel.

18. DRESS the wheel on the face only. Dressing the side
of the wheel can cause it to become too thin for safe use.

19. DO NOT use a wheel that vibrates. Dress the wheel,
replace the wheel, or replace the shaft bearings, if worn.

20. GRINDING CREATES HEAT. Do not touch the work­piece until you are sure it has cooled sufficiently.

21. ALWAYS use grinding wheels that are suitable for
the speed of the grinder. NEVER use a wheel that is rated
lower than the grinder speed.

22. ALWAYS keep guards in place when using a wire
brush or buffing wheel in place of the standard grinding
wheel.

23. SHOULD any part of your grinder 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.

24. THE USE of attachments and accessories not rec­ommended by Delta may result in the risk of injuries.

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.

26. SAVE THESE INSTRUCTIONS. Refer to them often
and use them to instruct others.

UNPACKING AND CLEANING

Your new grinder is shipped complete in one carton. Carefully unpack the grinder and all loose items from the carton.

WARNING: FOR YOUR OWN SAFETY, DO NOT CONNECT THE GRINDER TO THE POWER SOURCE UNTIL THE
MACHINE IS COMPLETELY ASSEMBLED AND YOU HAVE READ AND UNDERSTAND THE ENTIRE INSTRUCTION
MANUAL.