Delta SHOPMASTER GR250 User Manual

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6" Variable Speed

Grinder / Sharpener

(Model GR250)

PART NO. 905595 - 05-03-02

Copyright © 2002 Delta Machinery

To learn more about DELTA MACHINERY

ESPAÑOL: PÁGINA 13

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).

MANUAL INSTRUCTION

GENERAL 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 exercisecaution 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. 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.

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.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.

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

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

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

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

17.REDUCE THE RISK OF UNINTENTIONAL STARTING. Make sure switch is in “OFF” position before plugging in power cord. In the event of a power failure, move switch to the “OFF” position.

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

19.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.

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

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

22.STAY ALERT, WATCH WHAT YOU ARE DOING, AND USE COMMON SENSE WHEN OPERATING A POWER TOOL. DO NOT USE TOOL WHILE TIRED OR UNDER THE INFLUENCE OF DRUGS, ALCOHOL, OR MEDICATION. A moment of inattention while operating power tools may result in serious personal injury.

23.MAKE SURE TOOL IS DISCONNECTED FROM P O W E R S U P P LY w h i l e m o t o r i s b e i n g m o u n t e d , connected or reconnected.

24.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.

25.WARNING: SOME DUST CREATED BY POWER SANDING, SAWING, GRINDING, DRILLING, AND OTHER CONSTRUCTION ACTIVITIEScontains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

· lead from lead-basedpaints,

· crystalline silica from bricks and cement and other masonry products, and

· arsenic and chromium from chemically-treatedlumber. 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.

Refer to them often and use them to instruct others.

2

ADDITIONAL SAFETY RULES FOR

GRINDERS

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

1. DO NOT OPERATE THIS MACHINEuntil it is assembledand installedaccording to the instructions.

2.OBTAIN ADVICE FROM YOUR SUPERVISOR, instructor, or another qualified person if you are not familiar with the operation of this machine.

3.FOLLOW ALL WIRING CODES and recommended electrical connections.

4.USE THE GUARDS WHENEVER POSSIBLE.

Check to see that they are in place, secured, and working correctly.

5.ALWAYS USE THE BLOTTER (furnished) and wheel flanges to mount the grinding wheels on the grinder shaft.

6.USE ONLY GRINDING WHEELS suitable for the speed of the machine.

7.USE ONLY GRINDING WHEELS that have a bore exactly equal to the arbors of the machine. Never attempt to machine an undersized wheel to fit an arbor.

8.DO NOT USE A GRINDING WHEEL THAT VIBRATES. Dress the grinding wheel, replace it, or replace the bearings of the shaft.

9.INSPECT GRINDING WHEELS BEFORE STARTING THE MACHINE for cracks or chips. REPLACE DAMAGED GRINDING WHEELSimmediately.

10.ADJUST SPARK GUARDS close to the grinding wheel, andre-adjustas the wheel wears down.

11.ADJUST TOOL RESTS close to the grinding wheel (1/8" (3.8mm) separation or less). Tighten the tool rest securely to prevent shifting positions.

12.STAND TO ONE SIDE before turning the machine “ON”.

13.NEVER GRIND ON A COLD GRINDING WHEEL.

Run the grinder at idle speed for one full minute before applying the workpiece.

14.NEVER START THE MACHINE with the workpiece against the grinding wheel.

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

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

17.KEEP ARMS, HANDS, AND FINGERS away from the grinding wheel.

18.HOLD WORK FIRMLY against the tool rests.

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

20.GRIND A WORKPIECE using the face of the grinding wheel only.

21.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.

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

23.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.

24..TURN THE MACHINE “OFF”, disconnect the machine from the power source, and clean the table/work area before leaving the machine. If your machine has a switch lock-out feature, LOCK THE SWITCH IN THE “OFF” POSITION to prevent unauthorized use.

25.ADDITIONAL INFORMATION regarding the safe and proper operation of this tool is available from the Power Tool Institute, 1300 Summer Avenue, Cleveland, OH 44115-2851. 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.

3

POWER CONNECTIONS

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-wireextension cords which have 3- prong grounding type plugs and matching receptacle which will accept the machine’s plug. Before connecting the motor to the power line, make sure the switch 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 motor.

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

MOTOR SPECIFICATIONS

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

GROUNDING INSTRUCTIONS

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

1. All grounded, cord-connectedmachines:

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-groundingconductor 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 theequipment-groundingconductor to a live terminal.

Check with a qualified electrician or service personnel if t h e g ro u n d i n g i n s t r u c t i o n s a re n o t c o m p l e t e l y understood, or if in doubt as to whether the machine is properly grounded.

Use only 3-wireextension cords that have3-pronggrounding type plugs and matching3-conductorreceptacles that accept the machine’s plug, as shown in Fig. A.

Repair or replace damaged or worn cord immediately.

GROUNDED OUTLET BOX

CURRENT

CARRYING

PRONGS

2. Grounded, cord-connectedmachines 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-conductorreceptacle 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. Thegreen-coloredrigid 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.

WARNING: IN ALL CASES, MAKE CERTAIN THE RECEPTACLE IN QUESTION IS PROPERLY G R O U N D E D . I F Y O U A R E N O T S U R E H AV E A

QUALIFIED ELECTRICIAN CHECK THE RECEPTACLE.

GROUNDED OUTLET BOX

GROUNDING

MEANS

ADAPTER

GROUNDING BLADE

IS LONGEST OF THE 3 BLADES

Fig. A

Fig. B

4

EXTENSION CORDS

Use proper extension cords. Make sure your extension cord is in good condition and is a 3-wireextension cord which has a3-pronggrounding 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. D, 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.

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

 

 

 

 

Fig. D

OPERATING INSTRUCTIONS

FOREWORD

The Delta ShopMaster Model GR250 is a 6"Variable Speed Grinder / Sharpener. The Model GR250 comes with a flexible lamp, adjustable tool rests, 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 MANUAL COVER PHOTO ILLUSTRATES THE CURRENT PRODUCTION MODEL. ALL OTHER ILLUSTRATIONS ARE REPRESENTATIVE ONLY AND MAY NOT DEPICT THE ACTUAL COLOR, LABELING OR ACCESSORIES AND MAY BE INTENDED TO ILLUSTRATE TECHNIQUE ONLY.

5

GRINDER PARTS

1

10

18

17

12

11

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

5

 

 

 

 

 

 

 

8

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

3

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 2

 

 

 

 

 

 

 

 

 

 

 

1.

Grinder

 

 

 

 

 

 

 

 

10.

Eye shield (2)

 

 

 

 

2.

1/4-20x1/4"hex head screw (2)

 

 

 

 

 

 

11.

Left tool rest

 

 

 

 

3.

5/16-18x5/8"hex head screw (4)

 

 

 

 

 

 

12.

Left tool rest arm

 

 

 

 

4.

Eye shield bolt (2)

 

 

 

 

 

 

 

 

13.

Left spark guard

 

 

 

 

5.

5/16-18x3/4"knob (2)

 

 

 

 

 

 

 

 

14.

Right spark guard

 

 

 

 

6.

Eye shield knob (2)

 

 

 

 

 

 

 

 

15.

Right tool rest arm

 

 

 

 

7.

Eye shield spacer (2)

 

 

 

 

 

 

 

 

16.

Right tool rest

 

 

 

 

8.

5/16" flat washer (6)

 

 

 

 

 

 

 

 

17.

Wrench

 

 

 

 

9.

1/4" flat washer (4)

 

 

 

 

 

 

 

 

18.

Wheel dresser

 

 

 

 

6

ASSEMBLY

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

TOOL RESTS

1.Assemble left tool rest (A) Fig. 3, to left tool rest arm (B), as shown, and fasten with one 5/16-18x3/4"knob

(C) and 5/16" flat washer (D). Assemble the remaining tool rest in the same manner. Do not completely tighten hardware at this time.

2.Assemble left tool rest assembly (D) Fig. 4, to the inside of left wheel guard (E), and fasten with two 5/1618x5/8" screws (F) and 5/16" flat washers (G) as shown.

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

4.Each tool rest assembly (D) Fig. 4, is adjustable so 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 piece that is being ground. Always maintain a distance of 1/8" or less between the grinding wheel and the inside edge of the tool rest. As the wheels wear down, the tool rest should be adjusted accordingly. When the tool rest is positioned correctly, tighten hardware (C) and (F). Freehand grinding without the use of a tool rest should always be done on the lower quarter of the wheel.

SPARK GUARDS

The spark guard (A) Fig. 5, is mounted to the side of each wheel guard, using a 1/4-20x1/4"hex head screw (B) and 1/4" flat washer (C) as shown.NOTE: The tab (D)

Fig. 5, 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.

C

A

D

B

Fig. 3

G

D

C F E

Fig. 4

C

A B

D

E

Fig. 5

EYE SHIELDS

 

Your grinder is supplied with two eye shields for operator

 

protection.

 

 

WARNING: ALWAYS WEAR EYE PROTECTION. To

A

 

assemble the eye shields, proceed as follows:

 

1. Place the eye shield (A) on the spark guard as shown

 

in Fig. 6.

 

 

 

 

Fig. 6

7

2. Align the holes in the eye shield with the holes in the spark guard and place the eye shield spacer (A) Fig. 7, in the space in the spark guard as shown.

3.Insert the eye shield bolt (A) Fig. 8, through the hole in the eye shield (B), eye shield spacer (C), and spark guard (D).

4.Place a 1/4" flat washer (E) Fig. 8, onto the end of the eye shield bolt and fasten the eye shield knob (F) to the end of the eye shield bolt.

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

A

 

Fig. 7

 

D

C

E

F

A

B

Fig. 8

FASTENING GRINDER TO

 

 

SUPPORTING SURFACE

 

 

IF DURING OPERATION THERE IS ANY TENDENCY

 

 

FOR THE GRINDER TO TIP OVER, SLIDE OR

 

 

“WALK,” THE GRINDER MUST BE SECURED TO THE

 

 

SUPPORTING SURFACE USING FASTENERS (NOT

A

A

SUPPLIED) THROUGH THE TWO HOLES (A) Fig. 9, IN

 

 

THE GRINDER BASE.

 

 

 

Fig. 9

 

OPERATING CONTROLS AND ADJUSTMENTS

 

STARTING AND STOPPING GRINDER

The switch (A) Fig. 10, is located on the front of the grinder. To turn the grinder “ON” move the switch up to the “ON” position. To turn the grinder“OFF” move the switch down to the “OFF” position.

LOCKING SWITCH IN

THE “OFF” POSITION

IMPORTANT: When the machine is not in use, the switch should be locked in the “OFF” position to prevent unauthorized use. This can be done by grasping the switch toggle (A) and pulling it out of the switch, as shown in Fig. 10. With the switch toggle (A) removed, the switch will not operate. However, should the switch toggle be removed while the sander is running, it can be turned “OFF” once, but cannot be restarted without inserting the switch toggle (A).

A

B

Fig. 10

8

VARIABLE SPEED

CONTROL

The grinder is equipped with a variable speed control (B) Fig. 10. When the variable speed control knob is positioned to the furthermost left position (counter clockwise), the RPM is 2000. The rotation increases as the knob is turned clockwise. When the variable speed control knob is positioned to the furthermost right position (clockwise), the RPM is 3450.

FLEXIBLE LAMP

The flexible lamp operates independently of the grinder. To turn the lamp on and off, rotate switch (A) Fig. 11.

WARNING: To reduce the risk of fire, use 40 watt or less, 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.

GRINDING WHEELS

WARNING: THE USE OF ACCESSORIES AND ATTACHMENTS NOT RECOMMENDED BY DELTA MAY RESULT IN RISK OF INJURIES.Attachments used with this grinder should be rated for 3600 RPM or higher and be 6" in diameter with a 1/2" arbor hole.

Two aluminum oxide grinding wheels are supplied with your grinder; one 36 grit and one 60 grit. For best grinding results, and to maintain good balance, always keep the wheels properly dressed. Do not force the work against a cold wheel. The grinding wheel should always be run at idle speed for one full minute before applying work. It is recommended that only balanced wheels be used with your grinder. The use of balanced wheels adds years to the life of the bearings on the grinder and by eliminating the most common source of vibration, more accurate work is accomplished. 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.

DRESSING A

GRINDING WHEEL

When dressing a grinding wheel, use a suitable silicone carbide stick type dresser or the wheel dresser provided with the grinder, as shown in Fig. 12. Bring the dresser forward on the tool rest until it just touches the high point on the face of the wheel and dress the wheel by moving the dresser back and forth. Repeat this operation until the face of the grinding wheel is clean and the corners of the wheels are square.

A

Fig. 11

Fig. 12

9

CHANGING GRINDING WHEELS

1.DISCONNECT MACHINE FROM POWER SOURCE.

2.When changing wheels, remove the screws attaching the side covers to the grinder and remove the side covers.

3.To prevent shaft rotation, place a wedge between the grinding wheel and the tool rest. NOTE: Facing the front of the grinder: to replace the wheel on the left side of the grinder, turn the arbor nut clockwise to loosen; counterclockwise to tighten the arbor nut.

4.To replace the grinding wheel on the right, turn the arbor nut, counterclockwise to loosen; clockwise to tighten the arbor nut.

5.The arbor bushing should be saved, for future use, if the replacement wheel does not require the bushing.

WARNING: DO NOT OVERTIGHTEN WHEEL NUTS WHEN INSTALLING GRINDING WHEELS. TIGHTEN WHEEL NUT ENOUGH TO DRIVE THE WHEEL AND PREVENT SLIPPAGE.

WRENCH STORAGE

The open end wrench (A) and the wheel dresser wrench

(B) can be stored in the wrench holder located at the rear of the grinder as shown in Fig. 13.

A

B

Fig. 13

10