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Operating Instructions and Parts Manual 

Bench Grinder with Multitool Attachment 

Models JBGM-6, JBGM-8 

 
 

 

 
 
 
 

 

 

 

 

 

JET 

427 New Sanford Road 
LaVergne, Tennessee 37086 

Part No. M-577109

 

Ph.: 800-274-6848 

Edition 1  06/2017 

www.jettools.com 

Copyright © 2017 JET

Summary of Contents for JBGM-6

Page 1: ...tions and Parts Manual Bench Grinder with Multitool Attachment Models JBGM 6 JBGM 8 JET 427 New Sanford Road LaVergne Tennessee 37086 Part No M 577109 Ph 800 274 6848 Edition 1 06 2017 www jettools com Copyright 2017 JET ...

Page 2: ...lding cutting or working with metal produces fumes gases or dusts which contain chemicals known to the State of California to cause birth defects and in some cases cancer California Health and Safety Code Section 25249 5 et seq 12 Do not operate this machine while tired or under the influence of drugs alcohol or any medication 13 Make certain the switch is in the OFF position before connecting the...

Page 3: ...formance Follow instructions for lubricating and changing accessories 35 Never stand on tool Serious injury could occur if the tool is tipped or if the cutting tool is unintentionally contacted 36 Direction of feed Feed work into a blade or cutter against the direction of rotation of the blade or cutter only 37 Do not overtighten wheel nut 38 Frequently clean grinding dust from around and beneath ...

Page 4: ...s 10 6 2 Extension cords 11 7 0 Operation 11 7 1 On Off Switch 11 7 2 Precautions 11 8 0 Adjustments 12 8 1 Eye Shield Tilt Adjustment 12 8 2 Spark Guard 12 8 3 Tool Rest 12 8 4 Belt tracking 12 8 5 Platen adjustment 12 9 0 User maintenance 13 9 1 Ring Test 13 9 2 Care of Grinding Wheels 13 9 3 Changing Wheels 13 9 4 Wheel balancing 14 9 5 Dressing the wheels 14 9 6 Wire wheel brushes 15 9 7 Clean...

Page 5: ...ide consistent long term operation if used in accordance with the instructions set forth in this document If there are questions or comments please contact your local supplier or JET JET can also be reached at our web site www jettools com Retain this manual for future reference If the machine transfers ownership the manual should accompany it Read and understand the entire contents of this manual...

Page 6: ...1 in Wheel bore 1 2 in 5 8 in Wheel grit material 36 grit aluminum oxide Wheel flange diameter 2 in 50 8 mm 2 3 4 in 70 mm Wheel speed 3 450 RPM Arbor nut max tightening torque 20 lbf ft 270kgf cm Tool rest distance to wheel adjustable Abrasive belt Belt size 36 x 2 in 915 x 51 mm Belt grit material 100 grit zirconia alumina Belt speed 5000 SFPM Contact wheel p n 577115 3 1 2 Dia x 2 in 51 x 89 mm...

Page 7: ... kg 1 subject to local and national electrical codes 2 The specified values are emission levels and are not necessarily to be seen as safe operating levels As workplace conditions vary this information is intended to allow the user to make a better estimation of the hazards and risks involved only L length W width H height CFM cubic feet per minute The specifications in this manual were current at...

Page 8: ...source until all assembly and adjustments are complete Be sure that the bench grinder is unplugged and the power switch is in the OFF position Do not plug in the grinder to power until it is inspected for shipping damage and fully assembled Failure to comply may cause serious injury Do not operate this grinder without all guards and shields in place and in working order Failure to comply may cause...

Page 9: ...o 3 8 x 3 4 hex cap screws F through two 3 8 flat washers J through the tool rest M into the wheel housing 2 The tool rest should be adjusted to within 1 16 of the grinding wheel or other accessories being used As the wheel wears down the tool rest must be readjusted to maintain a maximum 1 16 clearance 5 9 Dust port It is recommended that a metalworking dust collection system be connected to the ...

Page 10: ...or 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 a risk of electric shock The conductor with i...

Page 11: ...en horizontal or vertical position Workpieces of any length can be worked on the belt and platen Contact wheel Grinding polishing and sanding against belt and contact wheel offers smooth sanding removing material more rapidly than conventional grinding wheels Free strapping is grinding sanding or polishing on the underside of belt opposite the platen without a backing behind the belt This method i...

Page 12: ...intain a maximum 1 16 distance Refer to Figure 8 1 1 Loosen two hex cap screws C1 with 14mm wrench 2 Slide tool rest C2 to within 1 16 from grinding wheel 3 Tighten screws C1 8 4 Belt tracking Rotate belt by hand to check tracking If belt shifts to one side or the other move tracking lever D Figure 8 2 while rotating belt until belt completely covers contact wheel and stays centered Move lever D d...

Page 13: ...s equipped with a general purpose grinding wheel Wheels vary according to types of abrasive hardness grit size and structure Contact your local distributor for the proper grinding wheel or wire wheel brush for your application If you replace a wheel obtain one with a safe rated speed at least as high as the NO LOAD RPM marked on the grinder s nameplate Refer to Table 3 to determine correct dimensi...

Page 14: ...making wobble unlikely if a good quality grinding wheel is used Should a wheel exhibit need for adjustment 1 Loosen nut and rotate outer flange a small amount Snug the nut and spin the wheel by hand to check 2 If wobble still exists continue repeating step 1 rotating outer flange incrementally in the same direction See Figure 9 2 Make sure to keep the wheel in same position each time 3 If complete...

Page 15: ...cals or solvents gasoline carbon tetrachloride chlorinated solvents ammonia and household detergents containing ammonia Brush all shavings from motor housing tool rest and wheel guard Check grinding wheel for cracks and chips Replace if damaged Periodically use a cleaning stick not provided against abrasive belt and abrasive disc to remove build up If the abrasive belt becomes loaded it can be cle...

Page 16: ...of obstruction Unplug and turn grinding wheel by hand to ensure free movement Clear any obstructions and restart Undersized extension cord Use correct size extension cord Short circuit in line cord or plug Inspect cord or plug for damaged insulation and shorted wires Short circuit in motor or loose connections Inspect all connections on motor for loose or shorted terminals or worn insulation Motor...

Page 17: ...too many machines running on same circuit Turn off other machines and try again Incorrect fuse or circuit breaker Have electrician upgrade service to outlet Excessive vibration Wheel s out of balance wobbling or not rotating concentric to arbor Dress wheel or replace it Adjust wobble by rotating flange as needed Improper mounting Secure grinder firmly to bench or stand WARNING Some corrections may...

Page 18: ...20 Reducer 3 in to 2 in 414812 0 6M Hose Heat Resistant ø2 x 24 4 in 12 0 Replacement Parts Replacement parts are listed on the following pages To order parts for the main grinder unit or reach the JET service department call 1 800 274 6848 Monday through Friday 8 00 a m to 5 00 p m CST Having the Model Number and Serial Number of your machine available when you call will allow us to serve you qui...

Page 19: ...19 12 1 1 JBGM series Grinder with Multitool Attachment Exploded View ...

Page 20: ...x 3 4 46 grit 1 576220 Grinding Wheel Ø8 x 3 4 46 grit 1 22 JBG6A 22 Nut left hand thread 1 2 1 JBG8A 22 Nut left hand thread 5 8 1 24 JBG6A 24B Outer Wheel Guard left 1 JBG8A 24P Outer Wheel Guard left 1 26 JBG6A 26 Cross Screw 1 4 x 1 2 5 27 JBG6A 27 Tool Rest left 1 JBG8A 27 Tool Rest left 1 29 TS 0680031 Flat Washer 5 16 2 30 TS 0051031 Hex Cap Bolt 5 16 x 3 4 2 31 JBG6A 31 Rubber Guide 1 JBG8...

Page 21: ...Screw 3 16 x 3 8 2 59 JBG6A 59 Eye Shield 1 JBG6A 59A Eye Shield Assembly 1 JBG8A 59 Eye Shield 1 JBG8A 59A Eye Shield Assembly 1 60 JBG6A 60 Eye Shield Bracket Plate 1 61 JET 92 JET Logo 92x38mm 1 63 JBG6A 63 Direction Label 1 64 JBG6A 64 Rubber Foot 6A 8A 4 65 JBG6A 65 Switch Seat 1 JBG8A 65 Switch Seat 1 66 JBG6A 66 Centrifugal Start Switch 1 JBG8A 66 Centrifugal Start Switch 1 67 LM000297 ID L...

Page 22: ...22 13 0 Wiring Diagram for JBGM series Grinder with Multitool ...

Page 23: ...itional action needed JET has Authorized Service Centers located throughout the United States For the name of an Authorized Service Center in your area call 1 800 274 6846 or use the Service Center Locator on the JET website More Information JET is constantly adding new products For complete up to date product information check with your local distributor or visit the JET website How State Law App...

Page 24: ...24 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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