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JAT-128 Impact Wrench

 

 

 

 

IMPORTANT SAFETY INSTRUCTIONS 

General air tool warnings 

1.  Read and understand this entire manual 

before attempting assembly or operation. 

2.  Read and understand all warnings posted on 

the tool and in this manual. Failure to comply 
with all of these warnings may cause serious 
injury. 

3.  Replace warning labels if they become 

obscured or removed. 

4. 

Do not use this tool for other than its intended 
use. If used for other purposes, JET disclaims 
any real or implied warranty and holds itself 
harmless from any injury that may result from 
that use. 

5. 

Always wear approved safety glasses or face 
shield while using this tool. (Everyday 
eyeglasses only have impact resistant lenses; 
they are 

not 

safety glasses.) 

6.  Wear ear protectors (plugs or muffs) if the 

noise exceeds safe levels. 

7.  Wear gloves and protective clothing if 

operation produces sparks or flying particles. 
Gloves should be tight-fitting, without frayed 
fingers or hanging threads. Keep hands and 
body away from the working area of tool. 

8.  Do not operate an air tool continually at full 

throttle without a work load on the tool. 

9. 

The air tool must be properly lubricated before 
operating.  

10.  Never start a percussion type air tool (chipper, 

breaker, buster, etc.) without securing 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 recommended. 

14.  Do not wear loose clothing or jewelry. Confine 

long hair. 

15.  Excessive air pressure and too much free 

rotation may decrease life of the tool and may 
cause a hazardous situation. 

16.  Check air hoses for wear, and keep them 

away from heat and sharp edges. Repair or 
replace damaged air hose immediately. Do 
not carry tool by the air hose. 

17.  Air hose may cause tripping hazards; keep 

hose away from traffic areas. 

18.  Do not use this tool near flammable objects, 

or in potentially explosive environments. Do 
not use near live electrical wires. 

19.  Do not use power tools in damp or wet 

location, or expose them to rain. Keep work 
area well lighted. 

20.  Do not leave a connected tool unattended. 

When not in use, disconnect tool from air 
source. 

21.  Shut off air supply and discharge any residual 

pressure from tool before removing hose, 
making adjustments, changing accessories, 
or storing tool. 

22.  Make sure tool is switched off, and your finger 

off the trigger, before connecting to air supply. 

23.  Remove adjusting keys and wrenches before 

turning on tool. 

 

Summary of Contents for JAT-128

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: ...ring 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 u...

Page 3: ...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...

Page 4: ...y 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 shou...

Page 5: ...ibration 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...

Page 6: ...everse 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 gr...

Page 7: ...us 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 r...

Page 8: ...est 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 gr...

Page 9: ...xternal 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 too...

Page 10: ...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 r...

Page 11: ...ur 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 qu...

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

Page 13: ...using 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...

Page 14: ...ed 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 Informat...

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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