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7

EYESHIELDS

WARNING! 

Never operate grinder with eyeshields removed.

Position the eyeshields so that manipulation of the work piece to the grinding stone is not

obstructed by the shield and that the piece of work is between the stone and the eyeshield.

SPARK DEFLECTORS
•   

Adjust periodically to insure that the distance between O.D. of the stone/wire wheel and

the bottom edge of the spark deflector is 

1

/

16

" clearance.

•   

Insure screws are securely tightened.

TOOL RESTS
•   

Keep tool rests adjusted to 

1

/

16

" clearance between O.D. of stone/wire wheel and the

inside edge of tool rests.

•   

Adjust the tool rests to insure the work piece to be ground will contact the wheel slightly

above centre line of the shaft.

•   

Periodically check adjustment to insure proper clearance is maintained.

GRINDING STONE
•   

To replace grinding wheel remove outer guard by removing 3 screws (Fig 5 A)

•   

Remove hex nut (Fig. 5B) using appropriate wrench.

•   

Remove and replace stone with a proper size stone of choice insuring that the speed rat-

ing of the stone is equal to or greater than the machine nameplate.

•   

Assemble as shown in Fig. 5. The nut should be tightened to a recommended 55 in/pds of

torque. Note the orientation of the flanged washers whereby the large diameter of washer

should bear against the wheel. Under no condition should the washers be reversed.

Caution

: The grinding wheels must always be checked for cracks of imperfections. 

This is done with the “ring test”. Tap the wheel gently near the outer rim with the handle of a 

screwdriver; you should hear a clear bell-like ringing. If a dull thud occurs do not use the

wheel! This means the wheel has been damaged and will, most likely, come apart during 

normal operations.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for 143388

Page 1: ...INDER OWNER S MANUAL Item 143388 WARNING Read carefully and understand all INSTRUCTIONS before operating Failure to follow the safety rules and other basic safety precautions may result in serious personal injury ...

Page 2: ...800 222 5381 INTENDED USE This bench grinder is designed for general metal grinding and sharpening TECHNICAL SPECIFICATIONS Description Specifications Voltage Frequeney 120V 60Hz Power 3 4 HP Rated running speed 3550 RPM Wheel Size 8 x 7 x 5 8 GENERAL SAFETY RULES WARNING Read and understand all instructions Failure to follow all instructions listed below may result in electric shock fire and or s...

Page 3: ...a qualified electrician if you are in doubt as to whether the outlet is properly grounded Double insulated tools are equipped with a polarized plug one blade is wider than the other This plug will fit in a polarized outlet only one way If the plug does not fit fully in the outlet reverse the plug If it still doesn t fit contact a qualified electrician to install a polar ized outlet Do not change t...

Page 4: ...systems and hearing protection when appropriate Avoid accidental starting Ensure the switch is in the off position before plugging tool into power outlet In the event of a power failure while a tool is being used turn the switch off to prevent surprise starting when power is restored Do not overreach Keep proper footing and balance at all times Remove adjusting keys or wrenches before connecting t...

Page 5: ...ING When unpacking the Bench Grinder please check if any parts are missing or broken please call Northern Tool Equipment Carefully remove the grinder and related hardware from the carton and examine it thoroughly to insure it has not been damaged This carton should contain the following items Description Qty Bench Grinder 1 Eye Shields 2 Tool Restst 2 Spark Guards 2 Manual 1 Short bolts 4 Bolts 2 ...

Page 6: ... from the bag the two spark guards and the two smaller bolts and washers Install the spark guards to the wheel guards of your grinder as shown in Figure 2 Adjust them to within 1 16 of the grinding wheel or other accessory being used NOTE There is a left and right spark guard Refer to Figure 2 to ensure that you install them correctly INSTALLING THE EYE SHIELDS Turn off and unplug the bench grinde...

Page 7: ...ace General operation Step 1 Obtain a tray that is large enough for the workpiece to fit into fill it with water and place it near the Bench Grinder Step 2 Turn the Bench Grinder on Step 3 Once the GRINDING WHEEL has reached full speed bring the workpiece up to the wheel gently and without jarring Step 4 Use the TOOL REST to steady the workpiece Step 5 The workpiece will quickly become heated Freq...

Page 8: ...oper clearance is maintained GRINDING STONE To replace grinding wheel remove outer guard by removing 3 screws Fig 5 A Remove hex nut Fig 5B using appropriate wrench Remove and replace stone with a proper size stone of choice insuring that the speed rat ing of the stone is equal to or greater than the machine nameplate Assemble as shown in Fig 5 The nut should be tightened to a recommended 55 in pd...

Page 9: ... any abnormal vibrations or noise occurs turn the tool off immediately and have the problem corrected before further use Have necessary repairs made by qualified service personnel Keep cutting tools sharp and clean Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control Keep handles dry clean and free from oil and grease Cleaning Use only soap a...

Page 10: ...9 DIAGRAM PARTS LIST ...

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