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Pneumatic Impact Wrench 

#505128, JAT-128 

 

 

 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

 

Operation & Parts Manual 

M-505128 

Edition 1 

02/2020 

 
 

JET 

427 New Sanford Road 

LaVergne, TN 37086 

Ph.: 800-274-6848 

www.jettools.com 

 

 

Copyright © 2020 JET 

Summary of Contents for 505128

Page 1: ...Pneumatic Impact Wrench 505128 JAT 128 Operation Parts Manual M 505128 Edition 1 02 2020 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2020 JET ...

Page 2: ...uring the tooling in the retainer and placing the tip against the work surface 11 Do not operate air tool without its guards in place Do not modify the tool 12 Do not operate this tool while tired or under the influence of drugs alcohol or any medication 13 Adopt a comfortable posture with proper balance and maintain secure footing at all times Non slip footwear or anti skid floor strips are recom...

Page 3: ...n Sockets in poor condition may reduce impact power and could break creating a safety hazard 36 Use only sockets designated for use with impact wrenches Never use hand tool sockets as they can shatter 37 Never hold socket drive or drive extension with your hand during operation 38 Make sure workpiece is secure and will not shift while operating impact wrench Do not hold workpieces with your hand 3...

Page 4: ...ay 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 serial number and purchase inform...

Page 5: ...Vibration value 8 81 m s2 Sound power 1 114 4 dB A Sound pressure 1 103 4 dB A Grip Pistol style Overall Length 9 7 in 246 38 mm Housing material Composite Net weight 7 45 lbs 3 38 kg Shipping weight 8 1 lbs 3 7 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 mak...

Page 6: ...reverse 5 Set regulator switch to desired speed setting Make sure nut or bolt can withstand rated torque of impact wrench To loosen nut or bolt 1 Select reverse rotation 2 Place socket over nut hold grip firmly and place other hand over top of housing Gently squeeze trigger Important If tool cannot loosen nut DO NOT raise air pressure above 90 psi If tool s air regulator is in low setting raise se...

Page 7: ...ous situation 4 Drain water from air compressor tank daily as well as any condensation from air lines Water in the air line may enter the tool and cause damage 5 Change filters on the air system on a regular basis 6 Air line pressure may be increased accordingly to compensate for extra long air hoses usually over 25 feet Inside diameter of hose should be minimum 3 8 inch General Air Tool Informati...

Page 8: ...best lubrication Lubrication Use a light oil containing rust inhibitors such as SAE 10 Many JET air tools have integral oil reservoirs which should be kept filled when in line oilers are not used If greasing is required use a grease that is highly water resistant for the front case components on air impact wrenches grinders and sanders Recycling Protect the environment Your tool contains materials...

Page 9: ...external fasteners 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 hose s and remove any kinks or bends Improper size of air transmiss...

Page 10: ...t Wrench Problem Possible cause Remedy Severe air leakage Note Minimal escape of air is often normal for air tools Air valve obstructed or damaged Clean or replace Housing loose or damaged Tighten or replace as needed ...

Page 11: ...our service department call 1 800 274 6848 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 Some parts are shown for reference only and may not be available individually ...

Page 12: ...12 JAT 128 Impact Wrench 505128 JAT 128 1 inch Impact Wrench exploded view ...

Page 13: ...ousing 1 302 JAT127 302 Valve Seat 1 303 JAT127 303 Valve Stem 1 304 JAT127 304 Conical Spring 1 305 JAT127 305 Muffler 1 306 JAT127 306 Exhaust Deflector 1 Part No Description Qty 307 JAT102 09 Screw M3x8 1 308 JAT102 10 O Ring 15x3 mm 2 309 JAT102 11 Air Inlet NPT18 1 310 F012088 Spring Pin 3x30 mm 1 401 JAT127 401 Trigger Assembly 1 402 JAT125 402 Regulator Stem 1 403 JAT125 403 Spring 2 5x5 2L...

Page 14: ...zed 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 Applies This warranty gives you specific...

Page 15: ...JET 15 ...

Page 16: ...16 JAT 128 Impact Wrench 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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