Jet JAT-900 Operations & Parts Manual Download Page 4

JAT-900,901,902 Pneumatic Hammer 

 

20.  Do not use power tools in damp or wet 

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

21.  Do not leave a connected tool unattended. 

When not in use, disconnect tool from air 
source. 

22.  Shut off air supply and discharge any residual 

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

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

off the trigger, before connecting to air supply. 

24.  Remove adjusting keys and wrenches before 

turning on tool. 

25.  Keep visitors a safe distance from the work 

area. 

Keep children away.

 

26.  Give your work undivided attention. Looking 

around, carrying on a conversation and 
“horse-play” are careless acts that can result 
in serious injury. 

27.  Do not force a tool or attachment to do a job 

for which it was not designed. The right tool 
will do the job better and more safely. 

28. Repetitive motions and/or exposure to 

constant vibration can be harmful to hands 
and arms. Take frequent breaks and relax 
hands during extended operation. Change 
posture to avoid discomfort or fatigue. 

29.  Compressed air can be harmful if directed 

toward sensitive areas of the body, and may 
propel small particles caught in the air stream. 
Exercise proper caution. 

30. 

Use only recommended accessories; 
improper accessories may be hazardous. 

31.  Maintain tools with care. Keep air tool clean 

and oiled for best and safest 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 Air Hammer 

35.  If you are not familiar with the proper and safe 

operation of an air hammer, do not use until 
proper training and knowledge have been 
obtained. 

36. Always operate air hammer with chisel 

secured and held firmly against workpiece. 

37.  Make sure speed rating of chisel/accessory 

matches or exceeds speed rating of air 
hammer. 

 

Familiarize yourself with the following safety notices used in this manual: 

 

This means that if precautions are not heeded, it may result in serious, or even 

fatal, injury.

 

  

This means that if precautions are not heeded, it may result in minor injury and/or 

possible tool damage.

 

 

 

Summary of Contents for JAT-900

Page 1: ... Hammer 505900 JAT 900 505901 JAT 901 505902 JAT 902 Operation Parts Manual M 505900 Edition 2 06 2015 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2015 JET JAT 901 shown ...

Page 2: ...t with any additional 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...

Page 3: ...hromium 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 without a work loa...

Page 4: ...Compressed air can be harmful if directed toward sensitive areas of the body and may propel small particles caught in the air stream Exercise proper caution 30 Use only recommended accessories improper accessories may be hazardous 31 Maintain tools with care Keep air tool clean and oiled for best and safest performance 32 Do not use combustible gases carbon dioxide oxygen or any bottled gas as an ...

Page 5: ...forth in this document The instructions 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 w...

Page 6: ...dB A 108 dB A 112 dB A Speed setting Variable Variable Variable Grip Pistol style Pistol style Pistol style Overall Length 5 1 4 in 133 4 mm 6 3 4 in 171 5 mm 9 in 228 6 mm Housing material Aluminum Aluminum Aluminum Net weight 3 28 lb 1 49 kg 4 21 lb 1 91 kg 4 54 lb 2 06 kg Shipping weight 3 57 lb 1 62 kg 4 52 lb 2 05 kg 4 85 lb 2 20 kg 1 The specified values are emission levels and are not neces...

Page 7: ... Set air pressure to 90 psi IMPORTANT Connecting a quick change coupling directly to the tool is not recommended as vibration may cause the connection to fail Instead add a leader hose and install any quick change couplings farther down the line 5 Adjust speed with air regulator knob 6 Hold air hammer with both hands and press chisel blade against target surface Press trigger to begin hammering ac...

Page 8: ...ifications the following are among the most common causes See also Troubleshooting section Contaminated air such as a dirty air system or water in the system Using wrong size tool for the job Poor maintenance practices such as using excessive air pressure or air volume Improper or no lubrication Rule of Thumb If it takes more than 8 seconds to tighten or loosen a bolt or nut with an air impact wre...

Page 9: ...d 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 which can be recovered or recycled When its useful life has expired please leave tool at a specialized facility Figure 3 Recommended arrangement of air piping and air line system ...

Page 10: ...tion or speed remains constant when turning regulator Low air pressure Verify compressor has proper CFM rating for tool Check compressor regulator setting set air pressure to 90 psi Set regulator knob 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 tra...

Page 11: ...ollowing pages To order parts or reach 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 ...

Page 12: ...lve stem 30 6mm 1 6 AH 17 O Ring 7 8x1 9 2 7 AH 9 Steel ball seat 1 8 AH 5 Throttle spring 1 Index Part No Description Qty 9 AH 7 O Ring 2x1 5 2 11 AH 10A Valve assembly 1 13 AH 2X Pin for trigger 3x14 1 14 AH 3X Pin for regulator 3x16 1 15 AH 15 1A Cylinder assembly incl piston 1 17 AH 19 Valve seat 1 18 J0101S Quick change spring retainer 1 JSG 1304 Set of 4 chisels 1 RBK 0101R Rebuild Kit conta...

Page 13: ...m 1 6 AH 17 O Ring 7 8x1 9 2 7 AH 9 Steel ball seat 1 8 AH 5 Throttle spring 1 Index Part No Description Qty 9 AH 7 O Ring 2x1 5 2 11 AH 10A Valve assembly 1 13 AH 2X Pin for trigger 3x14 1 14 AH 3X Pin for regulator 3x16 1 15 AH 15 2A Cylinder assembly incl piston 1 17 AH 19 Valve seat 1 18 J0101S Quick change spring retainer 1 JSG 1304 Set of 4 chisels 1 RBK 0204R Rebuild Kit contains 5 7 8 11 1...

Page 14: ...lve stem 30 6mm 1 6 AH 17 O Ring 7 8x1 9 2 7 AH 9 Steel ball seat 1 8 AH 5 Throttle spring 1 Index Part No Description Qty 9 AH 7 O Ring 2x1 5 2 11 AH 10A Valve assembly 1 13 AH 2X Pin for trigger 3x14 1 14 AH 3X Pin for regulator 3x16 1 15 AH 15 3A Cylinder assembly incl piston 1 17 AH 19 Valve seat 1 18 J0101S Quick change spring retainer 1 JSG 1304 Set of 4 chisels 1 RBK 0304R Rebuild Kit conta...

Page 15: ...JET 15 This page intentionally left blank ...

Page 16: ...16 JAT 900 901 902 Pneumatic Hammer 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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