Delta GR450, ShopMaster GR450 Instruction Manual

INSTRUCTION MANUAL

8" Variable Speed Grinder

(Model GR450)

PART NO. 908944 - 06-30-04

Copyright © 2004 Delta Machinery

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).

ESPAÑOL: PÁGINA 15

2

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

Used without the safety alert symbol indicates potentially hazardous situation which, if not avoided, may
result in property damage.

This manual contains information that is important for you to know and understand. This information relates to protect­ing YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the
symbols below. Please read the manual and pay attention to these sections.

SAFETY GUIDELINES - DEFINITIONS

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, always wear MSHA/NIOSH
approved, properly fitting face mask or respirator when using such tools.

GENERAL SAFETY RULES

READ AND UNDERSTAND ALL WARNINGS AND OPERATING INSTRUCTIONS BEFORE
USING THIS EQUIPMENT. Failure to follow all instructions listed below, may result in electric shock,
fire, and/or serious personal injury or property damage.

IMPORTANT SAFETY INSTRUCTIONS

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. For additional information please visit our website www.deltamachinery.com.

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)

3

GENERAL SAFETY RULES

1. FOR YOUR OWN SAFETY, READ THE INSTRUCTION
MANUAL BEFORE OPERATING THE MACHINE.

Learning the machine’s application, limitations, and
specific hazards will greatly minimize the possibility of
accidents and injury.

2. WEAR EYE PROTECTION. ALWAYS USE SAFETY
GLASSES. Also use face or dust mask if cutting
operation is dusty. Everyday eyeglasses are NOT safety
glasses. USE CERTIFIED SAFETY EQUIPMENT. Eye
protection equipment should comply with ANSI Z87.1
standards, hearing equipment should comply with
ANSI S3.19 standards, and dust mask protection
should comply with MSHA/NIOSH certified respirator
standards. Splinters, air-borne debris, and dust can
cause irritation, injury, and/or illness.

3. WEAR PROPER APPAREL. Do not wear loose
clothing, gloves, neckties, rings, bracelets, or other
jewelry which may get caught in moving parts. Nonslip
footwear is recommended. Wear protective hair
covering to contain long hair.

4. DO NOT USE THE MACHINE IN A DANGEROUS
ENVIRONMENT. The use of power tools in damp or
wet locations or in rain can cause shock or
electrocution. Keep your work area well-lit to prevent
tripping or placing arms, hands, and fingers in danger.

5. MAINTAIN ALL TOOLS AND MACHINES IN PEAK
CONDITION. Keep tools sharp and clean for best and safest
performance. Follow instructions for lubricating and changing
accessories. Poorly maintained tools and machines can further
damage the tool or machine and/or cause injury.

6. CHECK FOR DAMAGED PARTS. Before using the
machine, check for any damaged parts. Check for
alignment of moving parts, binding of moving parts,
breakage of parts, and any other conditions that may
affect its operation. A guard or any other part that is
damaged should be properly repaired or replaced.
Damaged parts can cause further damage to the
machine and/or injury.

7. KEEP THE WORK AREA CLEAN. Cluttered areas and
benches invite accidents.

8. KEEP CHILDREN AND VISITORS AWAY. Your shop is a
potentially dangerous environment. Children and visitors can
be injured.

9. REDUCE THE RISK OF UNINTENTIONAL STARTING.
Make sure that the switch is in the “OFF” position
before plugging in the power cord. In the event of a
power failure, move the switch to the “OFF” position.
An accidental start-up can cause injury.

10. USE THE GUARDS. Check to see that all guards are in
place, secured, and working correctly to prevent injury.

11. REMOVE ADJUSTING KEYS AND WRENCHES
BEFORE STARTING THE MACHINE. Tools, scrap
pieces, and other debris can be thrown at high speed,
causing injury.

12. USE THE RIGHT MACHINE. Don’t force a machine or

an attachment to do a job for which it was not
designed. Damage to the machine and/or injury may
result.

13. USE RECOMMENDED ACCESSORIES. The use of

accessories and attachments not recommended by
Delta may cause damage to the machine or injury to the
user.

14. USE THE PROPER EXTENSION CORD. Make sure

your extension cord is in good condition. When using
an extension cord, be sure to use one heavy enough to
carry the current your product will draw. An undersized
cord will cause a drop in line voltage, resulting in loss of
power and overheating. See the Extension Cord Chart
for the correct size depending on the cord length and
nameplate ampere rating. If in doubt, use the next
heavier gauge. The smaller the gauge number, the
heavier the cord.

15. SECURE THE WORKPIECE. Use clamps or a vise to hold

the workpiece when practical. Loss of control of a
workpiece can cause injury.

16. FEED THE WORKPIECE AGAINST THE DIRECTION OF

THE ROTATION OF THE BLADE, CUTTER, OR ABRASIVE
SURFACE. Feeding it from the other direction will cause

the workpiece to be thrown out at high speed.

17. DON’T FORCE THE WORKPIECE ON THE MACHINE.

Damage to the machine and/or injury may result.

18. DON’T OVERREACH. Loss of balance can make you

fall into a working machine, causing injury.

19. NEVER STAND ON THE MACHINE. Injury could occur if the

tool tips, or if you accidentally contact the cutting tool.

20. NEVER LEAVE THE MACHINE RUNNING UNATTENDED.
TURN THE POWER OFF. Don’t leave the machine until it
comes to a complete stop. A child or visitor could be injured.

21. TURN THE MACHINE “OFF”, AND DISCONNECT THE
MACHINE FROM THE POWER SOURCE before installing
or removing accessories, before adjusting or changing
set-ups, or when making repairs. An accidental start-up
can cause injury.

22. MAKE YOUR WORKSHOP CHILDPROOF WITH

PADLOCKS, MASTER SWITCHES, OR BY
REMOVING STARTER KEYS. The accidental start-up

of a machine by a child or visitor could cause injury.

23. STAY ALERT, WATCH WHAT YOU ARE DOING, AND

USE COMMON SENSE. DO NOT USE THE
MACHINE WHEN YOU ARE TIRED OR UNDER THE
INFLUENCE OF DRUGS, ALCOHOL, OR MEDICA­TION. A moment of inattention while operating power

tools may result in injury.

24. TAKE PRECAUTIONS AGAINST DUST INHALATION.
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.

FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS INJURY.

4

ADDITIONAL SAFETY RULES

FOR GRINDERS

1. DO NOT OPERATE THIS MACHINE until it is

completely assembled and installed according to the
instructions. A machine incorrectly assembled can
cause serious injury.

2. OBTAIN ADVICE from your supervisor, instructor, or

another qualified person if you are not thoroughly
familiar with the operation of this machine. Knowledge
is safety.

3. FOLLOW ALL WIRING CODES and recommended

electrical connections to prevent shock or
electrocution.

4. ALWAYS USE THE PROVIDED BLOTTER AND
WHEEL FLANGES to mount the grinding wheels on
the grinder shaft to prevent wheel damage or acciden­tal separation. Separation can result in fragments
flying off the wheel at high speeds.

5. USE ONLY WHEELS suitable for the speed of the
machine. Unsuitable grinding wheels can come apart,
throwing fragments out at high speeds.

6. USE ONLY WHEELS that have a bore exactly equal
to the arbors of the machine. Never attempt to
machine an undersized wheel to fit an arbor.
Unsuitable grinding wheels can come apart, throwing
fragments out at high speeds.

7. DO NOT OVERTIGHTEN WHEEL NUT.

8. DO NOT USE A WHEEL THAT VIBRATES. Dress the
grinding wheel, replace it, or replace the bearings of
the shaft. Unsuitable grinding wheels can come apart,
throwing fragments at high speeds.

9. INSPECT WHEELS before starting the machine for
cracks or fragments. REPLACE DAMAGED WHEELS
immediately. Parts of the wheel can be thrown at high
speeds causing serious injury.

10. ADJUST EYE SHIELDS close to the grinding wheel,
and re-adjust as the wheel wears down. Flying sparks
are dangerous and can cause fires or explosions.

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

12. ADJUST TOOL RESTS close to the grinding wheel
(1/8" separation or less). Tighten the tool rest securely
to prevent shifting positions, and re-adjust as the
wheel wears down. The workpiece can be drawn into
the wheel, causing damage to the workpiece and/or
serious injury.

13. STAND TO ONE SIDE before turning the machine
“ON”. Loose fragments or wheel parts could fly from
the wheel at high speeds.

14. NEVER GRIND ON A COLD WHEEL. Run the grinder
for one full minute before applying the workpiece. A
cold wheel has a tendency to chip. Those fragments
could fly from the wheel at high speeds.

15. NEVER START THE MACHINE with the workpiece
against the grinding wheel. The workpiece can be
drawn into the wheel, causing damage to the machine
and/or serious injury.

16. CLEAN THE MACHINE thoroughly when processing

different types of workpieces (wood, steel, or
aluminum). Combining wood and metal dust can
create an explosion or fire hazard. DO NOT GRIND
OR POLISH MAGNESIUM. Fire will result.

17. NEVER GRIND NEAR FLAMMABLE GAS OR
LIQUIDS. Sparks can create a fire or an explosion.

18. AVOID AWKWARD OPERATIONS AND HAND
POSITIONS. A sudden slip could cause a hand to
move into the grinding wheel.

19. KEEP ARMS, HANDS, AND FINGERS away from the
wheel. The abrasive surfaces can cause serious injury.

20. HOLD THE WORKPIECE FIRMLY against the tool
rest. Loss of control of the workpiece can cause
serious injury.

21. DRESS THE WHEEL on the face only. Dressing the
side of the wheel could cause it to become too thin for
safe use.

22. GRIND A WORKPIECE using the face of the grinding
wheel only. Loss of control of the workpiece can
cause serious injury.

23. NEVER APPLY COOLANT directly to the grinding
wheel. Coolant can weaken the bonding strength of
the grinding wheel and cause it to fail. Dip the
workpiece in water to cool it.

24. DO NOT TOUCH the ground portion of a workpiece
until it has cooled sufficiently. Grinding creates heat.

25. PROPERLY SUPPORT LONG OR WIDE WORK-
PIECES. Loss of control of the workpiece can cause
serious injury.

26. NEVER PERFORM LAYOUT, ASSEMBLY, or set-up work
on the table/work area when the machine is running.
A sudden slip could cause a hand to move into the
wheel. Severe injury can result.

27. TURN THE MACHINE “OFF”, disconnect the
machine from the power source, and clean the
table/work area before leaving the machine. LOCK
THE SWITCH IN THE “OFF” POSITION to prevent
unauthorized use. Someone else might accidentally
start the machine and cause serious injury to
themselves.

28. ADDITIONAL INFORMATION regarding the safe
and proper operation of power tools (i.e. a safety
video) is available from the Power Tool Institute, 1300
Sumner Avenue, Cleveland, OH 44115-2851
(www.powertoolinstitute.com). Information is also
available from the National Safety Council, 1121
Spring Lake Drive, Itasca, IL 60143-3201. Please refer
to the American National Standards Institute ANSI

01.1 Safety Requirements for Woodworking Machines
and the U.S. Department of Labor OSHA 1910.213
Regulations.

SAVE THESE INSTRUCTIONS.

Refer to them often

and use them to instruct others.

FAILURE TO FOLLOW THESE RULES MAY RESULT IN SERIOUS INJURY.

5

A separate electrical circuit should be used for your machines. This circuit should not be less than #12 wire and should
be protected with a 20 Amp time lag fuse. If an extension cord is used, use only 3-wire extension cords which have 3­prong grounding type plugs and matching receptacle which will accept the machine’s plug. Before connecting the
machine to the power line, make sure the switch (s) is in the “OFF” position and be sure that the electric current is of
the same characteristics as indicated on the machine. All line connections should make good contact. Running on low
voltage will damage the machine.

DO NOT EXPOSE THE MACHINE TO RAIN OR OPERATE THE MACHINE IN DAMP LOCATIONS.

Fig. A Fig. B

GROUNDED OUTLET BOX

CURRENT

CARRYING

PRONGS

GROUNDING BLADE
IS LONGEST OF THE 3 BLADES

GROUNDED OUTLET BOX

GROUNDING

MEANS

ADAPTER

2. Grounded, cord-connected machines intended for
use on a supply circuit having a nominal rating less
than 150 volts:

If the machine is intended for use on a circuit that has an
outlet that looks like the one illustrated in Fig. A, the
machine will have a grounding plug that looks like the plug
illustrated in Fig. A. A temporary adapter, which looks like
the adapter illustrated in Fig. B, may be used to connect
this plug to a matching 2-conductor receptacle as shown
in Fig. B if a properly grounded outlet is not available. The
temporary adapter should be used only until a properly
grounded outlet can be installed by a qualified electrician.
The green-colored rigid ear, lug, and the like, extending
from the adapter must be connected to a permanent
ground such as a properly grounded outlet box. Whenever
the adapter is used, it must be held in place with a metal
screw.

NOTE: In Canada, the use of a temporary adapter is not
permitted by the Canadian Electric Code.

IN ALL CASES, MAKE CERTAIN THAT THE
RECEPTACLE IN QUESTION IS PROPERLY
GROUNDED. IF YOU ARE NOT SURE,
HAVE A QUALIFIED ELECTRICIAN CHECK
THE RECEPTACLE.

1. All grounded, cord-connected machines:

In the event of a malfunction or breakdown, grounding
provides a path of least resistance for electric current to
reduce the risk of electric shock. This machine is
equipped with an electric cord having an equipment­grounding conductor and a grounding plug. The plug must
be plugged into a matching outlet that is properly installed
and grounded in accordance with all local codes and
ordinances.

Do not modify the plug provided - if it will not fit the outlet,
have the proper outlet installed by a qualified electrician.

Improper connection of the equipment-grounding
conductor can result in risk of electric shock. The
conductor with insulation having an outer surface that is
green with or without yellow stripes is the equipment­grounding conductor. If repair or replacement of the
electric cord or plug is necessary, do not connect the
equipment-grounding conductor to a live terminal.

Check with a qualified electrician or service personnel if
the grounding instructions are not completely
understood, or if in doubt as to whether the machine is
properly grounded.

Use only 3-wire extension cords that have 3-prong
grounding type plugs and matching 3-conductor
receptacles that accept the machine’s plug, as shown in
Fig. A.

Repair or replace damaged or worn cord immediately.

POWER CONNECTIONS

MOTOR SPECIFICATIONS

Your machine is wired for 120V, 60 HZ alternating current. Before connecting the machine to the power source, make
sure the switch is in the “OFF” position.

GROUNDING INSTRUCTIONS

THIS MACHINE MUST BE GROUNDED WHILE IN USE TO PROTECT THE OPERATOR FROM
ELECTRIC SHOCK.

6

EXTENSION CORDS

Use proper extension cords. Make sure
your extension cord is in good condition and is a 3-wire
extension cord which has a 3-prong grounding type
plug and matching receptacle which will accept the
machine’s plug. When using an extension cord, be sure
to use one heavy enough to carry the current of the
machine. An undersized cord will cause a drop in line
voltage, resulting in loss of power and overheating. Fig.
C shows the correct gauge to use depending on the
cord length. If in doubt, use the next heavier gauge. The
smaller the gauge number, the heavier the cord.

Fig.C

MINIMUM GAUGE EXTENSION CORD

RECOMMENDED SIZES FOR USE WITH STATIONARY ELECTRIC MACHINES

Ampere Total Length Gauge of

Rating Volts of Cord in Feet Extension Cord

0-6 120

up to

25 18 AWG
0-6 120 25-50 16 AWG
0-6 120 50-100 16 AWG
0-6 120 100-150 14 AWG

6-10 120

up to

25 18 AWG
6-10 120 25-50 16 AWG
6-10 120 50-100 14 AWG
6-10 120 100-150 12 AWG

10-12 120

up to

25 16 AWG
10-12 120 25-50 16 AWG
10-12 120 50-100 14 AWG
10-12 120 100-150 12 AWG

12-16 120

up to

25 14 AWG
12-16 120 25-50 12 AWG
12-16 120

GREATER THAN 50 FEET NOT RECOMMENDED

FOREWORD

FUNCTIONAL DESCRIPTION

The Delta ShopMaster Model GR450 is an 8" Variable Speed Grinder. This model comes with a flexible lamp, adjustable
tool rests, buffing wheel, quick release arbor nut system, and two large eye shields for added safety.

UNPACKING AND CLEANING

Carefully unpack the machine and all loose items from the shipping container(s). Remove the protective coating from
all unpainted surfaces. This coating may be removed with a soft cloth moistened with kerosene (do not use acetone,
gasoline or lacquer thinner for this purpose). After cleaning, cover the unpainted surfaces with a good quality household
floor paste wax.

NOTICE: The photograph on the manual cover illustrates the current production model. All other illustrations
contained in the manual are representative only and may not depict the actual color, labeling, or accessories
and are intended to illustrate technique only.

7

1. Grinder

2. Buffing Wheel

3. Buffing Wheel Bushing

4. Wrench

5. Wheel Dresser

6. Eye Shield (2)

7. Left Side Spark Guard

8. Right Side Spark Guard

9. Tool Rest Arm (2)

10. Tool Rest (2)

11. Eye Shield Knob (2)

12. 1/4" Flat Washer (4)

13. 1/4-20x1/4" Hex Head Screw (2)

14. 3/4" Flat Washer (4)

15. 5/16-18x5/8" Hex Head Screw (4)

16. 5/16" Lockwasher (2)

17. 5/16-18x3/4" Hex Head Screw (2)

18. Eye Shield Spacer (2)

19. Eye Shield Bolt (2)

1

CARTON CONTENTS

4

3

2

5

6

7

8

9

10

11

12

13

14

15

17

16

18

19

8

For your own safety, do not connect the machine to the power source until the machine is
completely assembled and you read and understand the entire instruction manual.

1. Attach the adjustable tool rest (A) Fig. 1 to the left
side of the tool rest arm (B), and fasten with one
5/16-18x3/4" hex head screw (C) and 5/16"
lockwasher (D). Attach the remaining tool rest to
the right side of the tool. Loosely tighten the
hardware for further adjustment.

2. Attach the left tool rest assembly (D) Fig. 2 to the
inside of the left wheel guard (E), and fasten with
two 5/16-18x5/8" screws (F) and 3/4" flat washers
(G).

3. Attach the right tool rest assembly to the inside of
the right wheel guard and fasten with two 5/16­18x5/8" hex head screws and 3/4" flat washers.

4. Each tool rest assembly (D) Fig. 4 is adjustable so
that it can be positioned slightly below the center­line of the wheel and as close to the grinding wheel
as possible, giving maximum support to the
workpiece. Maintain a distance of 1/8" or less
between the grinding wheel and the inside edge of
the tool rest. Adjust the tool rest when the grinding
wheel wears down. When the tool rest is
positioned correctly, tighten the hardware, (C) and
(F) Fig. 2. Freehand grinding without the use of a
tool rest should always be done on the lower
quarter of the wheel.

The spark guard (A) Fig. 3 is mounted to the side of each
wheel guard, using a 1/4-20x1/4" hex head screw (B)
Fig. 3 and a 1/4" flat washer (C).

NOTE: The tab (D) Fig. 3 on the side of the spark guard
(A) must be placed in slot (E), before attaching the spark
guard (A) to the grinder.

The spark guard (A) should be adjusted as close as
possible to the grinding wheel so that sparks never
strike the operator’s hand. As the wheels wear down, the
spark guard (A) should be adjusted accordingly.

Your grinder is supplied with two shields to protect your
eyes.

ALWAYS WEAR EYE PROTECTION.

To attach the eye shields:

1. Place the eye shield (A) Fig. 4 on the spark guard.

Fig. 1

A

ASSEMBLY

TOOL RESTS

SP

ARK GUARDS

EYE SHIELDS

B

C

D

D

C

A

E

F

A

C

B

D

E

A

Fig. 2

Fig. 3

Fig. 4

9

2. Align the holes in the eye shield with the holes in the spark guard. Place the eye shield spacer (A) Fig. 5 in the

space in the spark guard.

3. Insert the eye shield bolt (A) Fig. 6 through the hole in the eye shield (B),the eye shield spacer (C), and the spark

guard (D).

4. Place a 1/4" flat washer (E) Fig. 6 on the end of the eye shield bolt. Attach the eye shield knob (F) to the end of

the eye shield bolt.

5. Install the other eye shield in the same manner.

FASTENING GRINDER TO SUPPORTING SURFACE

If, during operation, there is a tendency for the
grinder to tip over, slide, or walk, the grinder must be
secured to the supporting surface, using fasteners
(not supplied) through the two holes (A) Fig. 7 in the
grinder base.

The on/off switch (A) Fig. 8 is located on the front of the Grinder. To turn the machine “ON”, lift the switch to the “ON”
position. To turn the machine “OFF”, move the switch down to the “OFF” position.

IMPORTANT: When the machine is not in use, lock the switch in the “OFF” position to prevent unauthorized use. Lock
the grinder by grasping the switch toggle (A) and pulling it out of the switch (Fig. 9). With the switch toggle (A) removed,
the switch will not operate. However, should the switch toggle be removed while the grinder is running, the machine
can be turned “OFF” once, but cannot be restarted without inserting the switch toggle (A).

Fig. 5

Fig. 6

Fig. 7

Fig. 8

A

A

B

C

D

E

F

A

OPERATION

ST

ARTING AND STOPPING GRINDER

LOCKING SWITCH IN THE “OFF” POSITION

A

A

B

Fig. 9

ALWAYS maintain a distance of 1/8" or less between the grinding wheel and the tool rest. Adjust the
tool rests and spark guards as the grinding wheels decrease in size with use.

10

The flexible lamp operates independently of the grinder.
To turn the lamp on and off, rotate the switch (A) Fig. 10.

Use a suitable silicone carbide stick type dresser or the
wheel dresser provided with the grinder (Fig. 11). Bring
the dresser forward on the tool rest until it just touches
the high point on the face of the wheel. Dress the wheel
by moving the dresser back and forth. Repeat this
operation until the face of the grinding wheel is clean and
the edges are square.

The grinder is equipped with a variable speed control (B) Fig. 9. When the variable speed control knob is positioned at
the far left position (counter clockwise), the RPM is 1725. The rotation increases when the variable speed control knob

is turned clockwise. Positioned far right, the RPM is 3450

A

Fig. 10

Fig. 11

VARIABLE SPEED CONTROL

FLEXIBLE LAMP

GRINDING WHEELS

To reduce the risk of fire, use 40 watt
or smaller, 120 volt, reflector track
type light bulb (not supplied). A stan­dard household light bulb should not
be used. The reflector track type light
bulb should not extend below the
lamp shade.

The use of accessories and attachments not recommended by Delta may result in a risk of injury.

Grinding wheels used with this grinder should be rated for 3600 RPM or higher, 8" in diameter with a 5/8" arbor hole,
and 1" wide.

Using wheels less than 1" wide will cause vibration and could damage the machine.

Two aluminum oxide grinding wheels (36 grit and 60 grit) are supplied with your grinder. For best results, and to
maintain balance, keep the wheels properly dressed. Do not force the work against a cold wheel. The grinding wheel
should always be run for one full minute before applying a workpiece. Use only balanced wheels with your grinder.
Using balanced wheels adds years to the life of the bearings on the grinder. By eliminating the most common source
of vibration, your grinding projects will be more accurate.

DRESSING A GRINDING WHEEL

11

1. Loosen the knobs (A) Fig. 12 and remove.

2. Rotate the wheel covers (B) Fig. 12 toward the rear, and remove the wheel covers.

3. Pull the two arbor nut wings (A) Fig. 13 out.

4. To loosen, place the included wrench (B) Fig. 13B on the flats of the motor shaft and brace it on the tool rest to

keep the shaft from turning while removing the arbor nut (A) Fig. 13. To loosen either arbor nut, turn it toward the
front of the grinder.

NOTE: If necessary, insert a flat screwdriver (A) Fig. 13B through the opening in the arbor nut and use it to provide more

torque to loosen the nut.

5. Remove the arbor nut, wheel flange, and old grinding wheel.

6. Place the new grinding wheel on the arbor.
NOTE: Grinding wheel must be 1" wide.

7. Place the flange on the arbor and thread the arbor nut on the arbor until the arbor nut makes contact with the arbor

flange. Push the arbor nut wings (A) Fig. 13 out to the closed position. The wings must lay flat against the arbor
flange (Fig. 14) and not left in the open position (Fig. 15).

CORRECT

INCORRECT

CHANGING GRINDING WHEELS

DISCONNECT MACHINE FROM POWER SOURCE.

8. Replace the wheel covers that were removed in STEPS 1 and 2.

9. Adjust the spark guards and tool rests before operating the machine.

The arbor nut wings must be flat against the arbor flange to prevent vibration.

Fig. 12

Fig. 14

Fig. 13

Fig. 15

B

A

A

A

A

A

A

Fig. 13B

B

12

1. Remove one grinding wheel as instructed in the

section “CHANGING GRINDING WHEELS.”

2. Remove the inner wheel flange (A) Fig. 16.

3. Place the buffing wheel bushing (B) Fig. 17 on the

shaft.

4. Replace the inner wheel flange (A) Fig. 18 on the

shaft.

5. Place the buffing wheel (C) Fig. 19 on the shaft.

6. Place the other wheel flange (D) Fig. 20 on the

shaft.

7. Thread the arbor nut (E) Fig. 21 on the arbor until

the arbor nut makes contact with the arbor flange.

8. Push the arbor nut wings out to the closed position,

flat against the arbor flange (Fig. 21).

The arbor nut wings must contact the

arbor flange to prevent vibration.

9. Replace the wheel cover that was removed in

STEP 2.

10. Adjust the spark guard and tool rest.

INSTALLING BUFFING WHEEL

A

B

A

C

D

E

DISCONNECT MACHINE FROM POWER
SOURCE.

Fig. 16

Fig. 17

Fig. 19

Fig. 18

Fig. 21

Fig. 20

13

WRENCH STORAGE

Store the open end wrench (A) and the wheel dressing
wrench (B) in the holder at the rear of the grinder (Fig.

22.)

ACCESSORIES

A complete line of accessories is available from your Delta Supplier, Porter-Cable • Delta Factory Service Centers,
and Delta Authorized Service Stations. Please visit our Web Site www

.deltamachinery.com for a catalog or for the

name of your nearest supplier.

Since accessories other than those offered by Delta have not been tested with this
product, use of such accessories could be hazardous. For safest operation, only Delta
recommended accessories should be used with this product.

PARTS, SERVICE OR WARRANTY ASSISTANCE

All Delta Machines and accessories are manufactured to high quality standards and are serviced by a network
of Porter-Cable • Delta Factory Service Centers and Delta Authorized Service Stations. To obtain additional
information regarding your Delta quality product or to obtain parts, service, warranty assistance, or the location
of the nearest service outlet, please call 1-800-223-7278 (In Canada call 1-800-463-3582).

A

B

Fig. 22

14

Two Year Limited New Product Warranty

Delta will repair or replace, at its expense and at its option, any new Delta machine, machine part, or machine accessory
which in normal use has proven to be defective in workmanship or material, provided that the customer returns the product
prepaid to a Delta factory service center or authorized service station with proof of purchase of the product within two
years and provides Delta with reasonable opportunity to verify the alleged defect by inspection. For all refurbished Delta
product, the warranty period is 180 days. Delta may require that electric motors be returned prepaid to a motor
manufacturer’s authorized station for inspection and repair or replacement. Delta will not be responsible for any asserted
defect which has resulted from normal wear, misuse, abuse or repair or alteration made or specifically authorized by
anyone other than an authorized Delta service facility or representative. Under no circumstances will Delta be liable for
incidental or consequential damages resulting from defective products. This warranty is Delta’s sole warranty and sets
forth the customer’s exclusive remedy, with respect to defective products; all other warranties, express or implied, whether
of merchantability, fitness for purpose, or otherwise, are expressly disclaimed by Delta.

The following are trademarks of PORTER-CABLE •DELTA (Las siguientes son marcas registradas de PORTER-CABLE • DELTA S.A.) (Les marques
suivantes sont des marques de fabriquant de la PORTER-CABLE

•

DELTA): Auto-Set®, BAMMER®, B.O.S.S.®, Builder’s Saw®, Contractor’s Saw®,

Contractor’s Saw II™, Delta

®

, DELTACRAFT®, DELTAGRAM™, Delta Series 2000™, DURATRONIC™, Emc²™, FLEX®, Flying Chips™, FRAME SAW®,

Grip Vac™, Homecraft

®

, INNOVATION THAT WORKS®, Jet-Lock®, JETSTREAM®, ‘kickstand®, LASERLOC®, MICRO-SET®, Micro-Set®, MIDI LATHE®,

MORTEN™, NETWORK™, OMNIJIG

®

, POCKET CUTTER®, PORTA-BAND®, PORTA-PLANE®, PORTER-CABLE®&(design), PORTER-

CABLE

®

PROFESSIONAL POWER TOOLS, PORTER-CABLE REDEFINING PERFORMANCE™, Posi-Matic®, Q-3®&(design), QUICKSAND®&(design),

QUICKSET™, QUICKSET II

®

, QUICKSET PLUS™, RIPTIDE™&(design), SAFE GUARD II®, SAFE-LOC®, Sanding Center®, SANDTRAP®&(design), SAW

BOSS

®

, Sawbuck™, Sidekick®, SPEED-BLOC®, SPEEDMATIC®, SPEEDTRONIC®, STAIR EASE®, The American Woodshop®&(design), The Lumber

Company

®

&(design), THE PROFESSIONAL EDGE®, THE PROFESSIONAL SELECT®, THIN-LINE™, TIGER®, TIGER CUB®,TIGERSAW®,

TORQBUSTER

®

, TORQ-BUSTER®, TRU-MATCH™, TWIN-LITE®, UNIGUARD®, Unifence®, UNIFEEDER™, Unihead®, Uniplane™, Unirip®, Unisaw®,

Univise

®

, Versa-Feeder®, VERSA-PLANE®, WHISPER SERIES®, WOODWORKER’S CHOICE™.

Trademarks noted with ™ and ® are registered in the United States Patent and Trademark Office and may also be registered in other countries. Las
Marcas Registradas con el signo de ™ y ® son registradas por la Oficina de Registros y Patentes de los Estados Unidos y también pueden estar
registradas en otros países.

PORTER-CABLE • DELTA SERVICE CENTERS

(CENTROS DE SERVICIO DE PORTER-CABLE

• DELTA)

Parts and Repair Service for Porter-Cable •Delta Machinery are Available at These Locations

(Obtenga Refaccion de Partes o Servicio para su Herramienta en los Siguientes Centros de Porter-Cable

•

Delta)

Authorized Service Stations are located in many large cities. Telephone [phone] or 731-541-6042 for assistance locating one.
Parts and accessories for Porter-Cable

·

Delta products should be obtained by contacting any Porter-Cable·Delta Distributor, Authorized

Service Center, or Porter-Cable

·

Delta Factory Service Center. If you do not have access to any of these, call 800-223-7278 and you will

be directed to the nearest Porter-Cable

·

Delta Factory Service Center. Las Estaciones de Servicio Autorizadas están ubicadas en muchas

grandes ciudades. Llame al 800-438-2486 ó al 731-541-6042 para obtener asistencia a fin de localizar una. Las piezas y los accesorios
para los productos Porter-Cable

·

Delta deben obtenerse poniéndose en contacto con cualquier distribuidor Porter-Cable·Delta, Centro

de Servicio Autorizado o Centro de Servicio de Fábrica Porter-Cable

·

Delta. Si no tiene acceso a ninguna de estas opciones, llame al

800-223-7278 y le dirigirán al Centro de Servicio de Fábrica Porter-Cable

·

Delta más cercano.

ARIZONA

Tempe 85282 (Phoenix)
2400 West Southern Avenue
Suite 105
Phone: [phone]
Fax: [phone]

CALIFORNIA

Ontario 91761 (Los Angeles)
3949A East Guasti Road
Phone: [phone]
Fax: [phone]

San Diego 92111
7638 Clairemnot Blvd.
Phone: [phone]
Fax: [phone]

San Leandro 94577 (Oakland)
3039 Teagarden Street
Phone: [phone]
Fax: [phone]

COLORADO

Arvada 80003 (Denver)
8175 Sheridan Blvd., Unit S
Phone: [phone]
Fax: [phone]

FLORIDA

Davie 33314 (Miami)
4343 South State Rd. 7 (441)
Unit #107
Phone: [phone]
Fax: [phone]

Tampa 33609
4538 W. Kennedy Boulevard
Phone: [phone]
Fax: [phone]

GEORGIA

Forest Park 30297 (Atlanta)
5442 Frontage Road,
Suite 112
Phone: [phone]
Fax: [phone]

ILLINOIS

Addison 60101 (Chicago)
400 South Rohlwing Rd.
Phone: [phone]
Fax: [phone]

Woodridge 60517 (Chicago)
2033 West 75th Street
Phone: [phone]
Fax: [phone]

MARYLAND

Elkridge 21075 (Baltimore)
7397-102 Washington Blvd.
Phone: [phone]
Fax: [phone]

MASSACHUSETTS

Franklin 02038 (Boston)
Franklin Industrial Park
101E Constitution Blvd.
Phone: [phone]
Fax: [phone]

MICHIGAN

Madison Heights 48071 (Detroit)
30475 Stephenson Highway
Phone: [phone]
Fax: [phone]

MINNESOTA

Minneapolis 55429
5522 Lakeland Avenue North
Phone: [phone]
Fax: [phone]

MISSOURI

North Kansas City 64116
1141 Swift Avenue
Phone: [phone]
Fax: [phone]

St. Louis 63119
7574 Watson Road
Phone: [phone]
Fax: [phone]

NEW YORK

Flushing 11365-1595 (N.Y.C.)
175-25 Horace Harding Expwy.
Phone: [phone]
Fax: [phone]

NORTH CAROLINA

Charlotte 28270
9129 Monroe Road, Suite 115
Phone: [phone]
Fax: [phone]

OHIO

Columbus 43214
4560 Indianola Avenue
Phone: [phone]
Fax: [phone]

Cleveland 44125
8001 Sweet Valley Drive
Unit #19
Phone: [phone]
Fax: [phone]

OREGON

Portland 97230
4916 NE 122 nd Ave.
Phone: [phone]
Fax: [phone]

PENNSYLVANIA

Willow Grove 19090
(Philadelphia)
520 North York Road
Phone: [phone]
Fax: [phone]

TEXAS

Carrollton 75006 (Dallas)
1300 Interstate 35 N, Suite 112
Phone: [phone]
Fax: [phone]

Houston 77043
4321 Sam Houston Parkway,
West
Suite 180
Phone: [phone]
Fax: [phone]

WASHINGTON

Auburn 98001(Seattle)
3320 West Valley HWY, North
Building D, Suite 111
Phone: [phone]
Fax: [phone]

Printed in U.S.A. PC-0104-149

CANADIAN PORTER-CABLE • DELTA SERVICE CENTERS

ALBERTA

Bay 6, 2520-23rd St. N.E.
Calgary, Alberta
T2E 8L2
Phone: [phone]
Fax: [phone]

BRITISH COLUMBIA

8520 Baxter Place
Burnaby, B.C.
V5A 4T8
Phone: [phone]
Fax: [phone]

MANITOBA

1699 Dublin Avenue
Winnipeg, Manitoba
R3H 0H2
Phone: [phone]
Fax: [phone]

ONTARIO

505 Southgate Drive
Guelph, Ontario
N1H 6M7
Phone: [phone]
Fax: [phone]

QUÉBEC

1515 ave.
St-Jean Baptiste, Suite 160
Québec, Québec
G2E 5E2
Phone: [phone]
Fax: [phone]

1447, Begin
St-Laurent, (Montréal),
Québec
H4R 1V8
Phone: [phone]
Fax: [phone]