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READ & SAVE THESE INSTRUCTIONS 

 
 

 

 

8 Inch Benchtop Grinder 

 

Owner’s Manual 

 

 

 

 

WARNING:

 Read carefully and understand all ASSEMBLY AND OPERATION 

INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety 
precautions may result in serious personal injury. 

 

 

Item #61458 

 

Summary of Contents for 61458

Page 1: ...htop Grinder Owner s Manual WARNING Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating Failure to follow the safety rules and other basic safety precautions may result in serious personal injury Item 61458 ...

Page 2: ...hat you read the entire manual to become familiar with this product before you begin using it This benchtop grinder is designed for certain applications only Northern Tool and Equipment is not responsible for issues arising from modification or improper use of this product such as an application for which it was not designed We strongly recommend that this product not be modified and or used for a...

Page 3: ...Safety Information 4 Specific Operation Warnings 6 Grounding 6 Extension Cords 8 Main Parts of Benchtop Grinder 9 Assembly Instructions 9 Before Each Use 12 Operating Instructions 12 After Each Use 14 Maintenance 14 Troubleshooting 15 Parts Diagram 17 Parts List 18 Replacement Parts 18 Limited Warranty 19 ...

Page 4: ...tions that could occur Exercise common sense and caution when using this tool Always be aware of the environment and ensure that the tool is used in a safe and responsible manner Do not allow persons to operate or assemble the product until they have read this manual and have developed a thorough understanding of how it works Do not modify this product in any way Unauthorized modification may impa...

Page 5: ...cation A moment of inattention while operating the tool may result in serious personal injury Dress properly Do not wear loose clothing dangling objects or jewelry Keep your hair clothing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in moving parts Air vents on the tool often cover moving parts and should be avoided Wear the proper personal protective equipmen...

Page 6: ... the tool itself Keep guards in place and in working order Never operate the product without the guards in place Do not leave the tool running unattended Specific Operation Warnings WARNING Always wear eye protection Only use accessories rated at least equal to the maximum speed marked on the tool Do not modify the tool in any way Do not wear gloves jewelry or loose clothing Do not use a cracked o...

Page 7: ... See Figure A The grounding prong in the plug is connected through the green wire inside the cord to the grounding system in the tool The green wire in the cord must be the only wire connected to the tool s grounding system and must never be attached to an electrically live terminal Your tool must be plugged into an appropriate outlet properly installed and grounded in accordance with all codes an...

Page 8: ...he smaller the wire s gauge number the greater the capacity of the cord For example a 14 gauge cord can carry a higher current than a 16 gauge cord Minimum extension cord wire size is shown in the following table Minimum Wire Size Of Extension Cords Nameplate AMPS Cord Length 25 50 100 150 0 6 18 AWG 16 AWG 16 AWG 14 AWG 6 10 18 AWG 16 AWG 14 AWG 12 AWG 10 12 16 AWG 16 AWG 14 AWG 12 AWG 12 16 14 A...

Page 9: ...the tool off and disconnect the grinder from the power outlet before installing or changing the grinding wheel Always make sure your benchtop grinder is securely mounted to a workbench Failure to do so could result in an accident or possibly serious personal injury Installing Tool Rests Turn off and unplug the benchtop grinder Remove the tool rests from the top portion of the poly foam carton line...

Page 10: ...er to Fig 2 to ensure that you install them correctly Installing the Eye Shields Note There is a left and a right eye shield mounting rod Fig 3 is for the right wheel guard as you face the front of the tool Carefully examine Fig 3 and assemble one rod one bracket one bolt and one flat washer as shown When it has been assembled as shown in the figure install it to the wheel guard of the grinder Pos...

Page 11: ...t enough to stay in place Always position the eye shields between your eyes and the grinding wheel or other accessory being used Mounting the Grinder to the Workbench Before attempting to use this grinder it must be properly mounted to a workbench or grinding stand Note Bench grinders vibrate Grinder movement during high speed rotation may cause injury to the operator or damage to the workpiece Mo...

Page 12: ...d If the wheel has a dead thud at any of the points it is damaged and cannot be used Replace the wheel Tool Rest Adjustment Adjust the tool rest to the desired grinding angle Keep the tool rest approximately 1 16 away from the surface of the grinding wheel in order to provide appropriate workpiece support Shield Adjustment Place the workpiece on the tool rest and fold down the eye shield Ensure th...

Page 13: ...ST to maintain 1 16 in or less separation as the diameter of the wheel decreases with use The value of separation used in the marking is to be the separation recommended by the manufacturer but shall not be more than 1 8 inch When starting to grind a harsh impact can break the wheel Use light pressure when starting to grind too much pressure on a cold wheel can cause the wheel to crack Never start...

Page 14: ...ing wheel for flatness If the surface is uneven or grooved dress the wheel back to flatness Maintenance WARNING Disconnect power from tool and place the switch in the locked or off position before servicing adjusting installing accessories or attachments or storing Use only accessories that are recommended by the manufacturer for your model Use only soap and a damp cloth to clean your tools Many h...

Page 15: ...your local dealer for assistance Failure Possible Cause Corrective Action Motor will not start Low voltage Check power source for proper voltage Open circuit in motor or loose connections Have a qualified technician repair unit Blown fuse or breaker Have a qualified technician repair unit Motor will not start because fuses or circuit breakers are tripping or blowing Short circuit in line cord or p...

Page 16: ...htly Use a holding device to more firmly retain the workpiece Burning spots or cracks in the workpiece Improper type of grinding wheel Try wheels with a softer bond or coarser grit Improper feed rate Slow down the rate at which the workpiece is fed into the wheel Coolant required Add coolant Wheel dulls quickly or grit falls off Feed rate is too aggressive Decrease feed rate of workpiece into grin...

Page 17: ...Page 17 of 20 Parts Diagram ...

Page 18: ... 29 Base Plate 1 30 Condenser 1 31 Screw 1 32 Pad 1 33 Base 1 34 Switch 1 35 Right Adjustable Rest 1 36 Screw 1 37 Mounting Plate 1 Replacement Parts For replacement parts and technical questions please call Customer Service at 1 800 222 5381 Not all product components are available for replacement The illustrations provided are a convenient reference to the location and position of parts in the a...

Page 19: ... claim contact Us at 1 800 222 5381 identify the product by make and model number and follow the claim instructions that will be provided The product and the purchase receipt must be provided to Us in order to process Your warranty claim Any returned product that is replaced or refunded by Us becomes our property You will be responsible for return shipping costs or costs related to Your return vis...

Page 20: ...Page 20 of 20 Distributed by Northern Tool Equipment Company Inc Burnsville Minnesota 55306 www northerntool com Made in China ...

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