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6-inch Horizontal Grinder 

#550680, JCT-6680 

 
 
 
 
 
 

 

 

 

 

 

 

 

 

 

 

Operation & Parts Manual 

M-550680 

Edition 1 

07/2016 

 
 

JET 

427 New Sanford Road 

LaVergne, TN 37086 

Ph.: 800-274-6848 

www.jettools.com 

 

 

Copyright © 2016 JET 

Summary of Contents for 550680

Page 1: ...6 inch Horizontal Grinder 550680 JCT 6680 Operation Parts Manual M 550680 Edition 1 07 2016 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2016 JET ...

Page 2: ...ucts Arsenic and chromium from chemically treated lumber Your risk of exposure 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 face or dust masks that are specifically designed to filter out microscopic particles 9 Do not operate an air tool continually at full throttle ...

Page 3: ...est performance 32 Do not use combustible gases carbon dioxide oxygen or any bottled gas as an air source for the tool These can present risk of explosion and serious injury 33 Do not lubricate the tool with combustible liquids such as kerosene diesel or jet fuel 34 Do not dispose of this tool with normal household waste Never dispose of the air tool into fire Specific warnings for Grinders 35 Thi...

Page 4: ...and warnings in this manual may not encompass all possible workplace environments The operator is expected to take appropriate precautions and exercise common sense As with any tool operation safety of operator and bystanders should be first priority 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 Record the seri...

Page 5: ...le throttle Overall length 21 1 4 in 540 mm Housing material Aluminum Grip style Inline Net weight 9 1 lb 4 kg Shipping weight 10 lb 4 5 kg 1 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 Specifications...

Page 6: ...and install any quick change couplings farther down the line 6 Hold grinder securely with both hands and press throttle lever The throttle lock may be engaged to continue operation without holding the lever 7 Position grinding wheel against workpiece with steady pressure 8 Press in throttle lever and disengage throttle lock to stop grinder User maintenance The grinder should be lubricated daily or...

Page 7: ...inued use in either capacity will cause damage to the tool Tool Pressure JET Air Tools operate on 70 to 100 psi pounds per square inch air pressure measured at the tool when the tool is operating Set tool to 90 psi unless indicated otherwise Pressure in excess of 100 psi will shorten the life of the tool Air System Recommendations Equip the air compressor intake with a replaceable air filter that ...

Page 8: ...8 JCT 6680 Horizontal Grinder Figure 2 Recommended arrangement of air piping and air line system ...

Page 9: ...l vibration Bearings worn Disassemble and inspect bearing Grease or replace as needed Loss of power erratic action Low air pressure Verify compressor has proper CFM rating for tool Check compressor regulator setting set air pressure to 90 psi Set regulator dial on tool to maximum setting Check for loose connections Moisture or obstruction in air hose Air supply must be clean and dry Clean out air ...

Page 10: ...8 Monday through Friday 8 00 a m to 5 00 p m CST Please have the stock number and serial number of your tool available when you call so that we may serve you quickly and accurately Non proprietary parts such as fasteners can be found at local hardware stores or may be ordered from JET Some parts are shown for reference only and may not be available individually ...

Page 11: ...JET 11 550680 JCT 6680 6 inch Horizontal Grinder ...

Page 12: ...Governor weight 2 39 JCT6680 39 Bearing cover 1 40 JCT6680 40 Ball bearing 6002MN 1 41 JCT6680 41 Cylinder upper plate 1 42 JCT6680 42 Rotor 1 43 JCT6680 43 Rotor vane 4 Index Part No Description Qty 44 JCT6680 44 Key 1 45 JAT104 17 Spring pin 3x8L 1 46 JCT6680 46 Cylinder 1 47 JCT6680 47 Cylinder lower plate 1 48 BB 6301 Ball bearing 6301 1 49 JCT6680 49 Coupling 1 50 JCT6680 50 Spacer 1 51 JCT66...

Page 13: ...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...

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Page 16: ...16 JCT 6680 Horizontal Grinder 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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