JET JAT-120 Operating Instructions and Parts Manual

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Pneumatic Impact Wrench

#505120, J AT- 120 #505121, J AT- 121 #505122, J AT- 122 #505123, J AT- 123

JAT-120 shown

Operation & Parts Manual

M-505120

Edition 2

06/2015

427 New Sanford Road

LaVergne, TN 37086

Ph.: 800-274-6848

www.jettools.com

JET

Warranty and Service

–

JET warrants every product it sells against manufacturers’ defects. If one of our tools needs service or repair, please contact Technical Service by calling 1-800-274-6846, 8AM to 5PM CST, Monday through Friday.

Warranty Period The general warranty lasts for the time period specified in the literature included with your product or on the official JET branded website.

• JET products carry a limited warranty which varies in duration based upon the product. (See chart below)

• Ac c essories carry a limited warranty of one year from the date of receipt.

• C ons umable items are defined as expendable parts or accessories expected to become inoperable within a

reasonable amount of use and are covered by a 90 day limited warranty against manufacturer’s defects.

Who is Covered

This warranty covers only the initial purchaser of the product from the date of delivery.

What is Covered

This warranty covers any defects in workmanship or materials subject to the limitations stated below. This warranty does not cover failures due directly or indirectly to misuse, abuse, negligence or accidents, normal wear-and-tear, improper repair, alterations or lack of maintenance. JET woodworking machinery is designed to be used with Wood. Use of these machines in the processing of metal, plastics, or other materials outside recommended guidelines, may void the warranty. The exceptions are acrylics and other natural items that are made specifically for wood turning.

Warranty Limitations

Woodworking products with a Five Year Warranty that are used for commercial or industrial purposes default to a Two Year Warranty. Please contact Technical Service at 1-800-274-6846 for further clarification.

How to Get Technical Support Please contact Technical Service by calling 1-800-274-6846. Please note that you will be asked to provide proof of initial purchase when calling. If a product requires further inspection, the Technical Service representative will explain and assist 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 State Law Applies

This warranty gives you specific legal rights, subject to applicable state law.

Limitat ions on This Wa rranty

JET LIMITS ALL IMPLIED WARRANTIES TO THE PERIOD OF THE LIMITED WARRANTY FOR EACH PRODUCT. EXCEPT AS STATED HEREIN, ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXCLUDED. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. JET SHALL IN NO EVENT BE L IABLE FOR DEATH, INJUR IES TO PERSONS O R PROPERTY, O R FOR INCIDENTAL, CONTINGENT, SPECIAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF OUR PRODUCTS. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.

JET sells through distributors only. The specifications listed in JET printed materials and on official JET website are given as general information and are not binding. JET reserves the right to effect at any time, without prior notice, those alterations to parts, fittings, and accessory equipment which they may deem necessary for any reason whatsoever. JET sold in Canada by JPW I ndustr ies, Inc.

Product Listing with Warranty Period

90 Days

Parts; Consumable items 1 Year – Motors; Machin e A ccessorie s 2 Year – Metalworking Machinery; Electric Hoists, Electric Hoist Accessories; Woodworking Machinery used for industrial or commercial purposes 5 Year – Woodworking Machinery Limited Lifetime – JET Parallel clamps; VOLT Series Electric Hoists; Manual Hoists; Manual Hoist Accessori e s; Shop Tools; Warehouse & Dock products; Hand Tools; Air Tools

NOTE: JET is a division of JPW Industries, Inc. References in this document to JET also apply to JPW Industries, Inc., or any of its successors in interest to the JET brand.

branded products are not

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Safety warnings

General air tool warnings

1. Read and understand this entire manual before at t em pt i ng assembly or op eration.

2. Read and und erstan d all warnin gs posted on the tool an d in th is manu al . Failur e t o comp ly with all of thes e warnings may caus e serious injury.

3. Replace warning labels if they become obscur ed or r em o ved .

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

5. Alw ays wear appr oved saf ety glass es or f ace shield while using this tool. (Everyday eyeglasses only have impact resistant lenses; they are not safet y glas ses.)

6. Wear ear protectors (plugs or muffs) if the noise exceeds sa fe levels.

7. Wear gloves and protective clothing if operati on produc es sp arks or fl ying part icles. Gloves s hould be t ight-fitti ng, withou t frayed fingers or hangi ng threads . Keep h ands and body away from the workin g area of tool.

8. Some dust created by power sanding, sawing, grinding, drilling and other construction activit ies c ont ai ns ch em ic als known t o c aus e cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

• Lead from lead based paint.

• Crystalline silica from bricks, cement and other mas onry product s .

• Arsenic and chromium from chemically treated lumber.

Your risk of exposure varies, depending on how often you d o this type of work. To reduce your exp osure to th ese chemic als, wor k in a well-ventilated area and work with approved safety equipme nt, su ch as face or dust masks that are specifically designed to filter out microscopic particles.

9. D o not operat e an air tool continu ally at full throttl e wit h ou t a w ork l oad on the tool.

10. The air tool must be properly lubricated before operatin g.

11. 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.

12. Do not operate air tool without its guards in place. Do not modify the tool.

13. Do not oper ate this tool w hile tired or un der the influence of drugs, alcohol, or any medication.

14. Adopt a comfortable posture with proper balance, and maintain secure footing at all times. Non-slip footwear or anti-skid floor strips are rec om m ended.

15. Do not wear loose clothing or jewelry. Confine long hair.

16. Excessive air pressure and too much free rotati on m ay dec r ease life of the tool and may cause a haz ar d ous sit uation.

17. Check air hoses for wear, and keep them away fr om heat and s harp edg es. Rep air or replace damaged air hose immediately. Do not carry tool by the air hose.

18. Air hose may c ause tripping hazards; keep hose away from traffic areas.

19. Do not us e this tool near flamm able objects , or in pot entially exp losive envir onments. Do not use near live electrical wires.

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20. Do not use power tools in damp or wet locati on, or expose t hem to r ain. K eep wor k area well lig ht ed.

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 ad jus tin g keys and wrenc hes befor e turning on tool.

25. K eep visitors a safe distance from the work area. Keep children away.

26. Gi ve your work undivi ded attention. Looking around, carrying on a conversation and “horse-play” are careless acts that can result in serious injury.

27. D o not forc e a tool or attac hment t o do a job for which it was n ot designed. Th e right tool will do the job better and more safe ly.

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 postur e t o avoi d dis comfort or fat ig u e.

29. Compressed air can be harmful if directed toward s ensitive areas of the body, and may propel small particles caught in the air stream. Exercise proper cauti on.

30. Use only recommended accessories; improp er accessories m ay b e haz ar d ous .

31. Maint ain tools with c are. Keep air tool clean and oiled for best and safest performance.

32. Do not use combustible gases, carbon dioxid e, oxygen or any bottl ed gas as an air sourc e for the t ool. These can pr es ent r isk 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 warni ng s for Imp act Wrench

35. This im pact wr ench is d esig ned for removi ng and ins talling thr eaded f asteners. If you ar e not familiar with the proper and safe operation of a pneumatic impact wrench, do not use until proper training and knowledge have been obtained.

36. Use only impact sockets in good condition. Sockets in poor cond iti on m ay reduc e im p act power, and could break, creating a safety hazard.

37. Use only sockets designated for use with impact wrenches. Never use hand tool sockets, as they can shatter.

38. Never hold socket, drive or drive extension with your han d during operat i on.

39. Make sure workpiece is secur e and will not shift whi le operatin g impact wrenc h. Do not hold workpieces with your hand.

40. Make sure fastener can withstand rated torque of impact wrench.

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

fatal, injury.

possible tool damage.

This mea ns that if p recauti ons are not heeded , it may r esult in ser ious, or even

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

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About this manual

This manual is provided by JET, covering the safe operation and maintenance procedures for a JET Model JAT-120, JAT-121, JAT-122, and JAT-123 Pneumatic Impact Wrench. This manual contains instructions on safety precautions, general operating procedures, maintenance procedures and parts breakdown. Your tool has been des ign ed an d c onstr uct ed to p r ovid e cons ist ent, l on g-ter m operati on if us ed in acc ordance with the instructions set 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 operati on, s af ety of operator an d b yst an d ers sh ou ld be fir s t priority.

If ther e ar e questions or c om m ents , p l eas e contact you r l oc al s upplier or J ET . J ET can also be reac h ed at our web site: www.jettools.com.

Record the serial number and purchase information of your tool on the cover of this manual for quick access. Retain this manual for future reference. If the tool transfers ownership, the manual should accompany it.

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Tool speci fic at io ns

Model nu mb er JAT-120 JAT-121 JAT-122

Stock number 505120 505121 505122 505123 Square drive 3/8 in . 1/2 in . Bolt capa city 9/16 in. 3/4 in. 3/4 in. 1-1/1 6 in.

Anvi l retaine r type Hog ring Hog ring Hog ring Hog ring Impact mechani sm Twin hammer Twin ha mmer Twin hammer Twin hammer

Maximum torque

W orking tor qu e Free speed 13,500 RPM 8500 RPM 8500 RPM 6000 RPM

Blows per minute 1400 1200 1200 900 Averag e air

consumption Air inlet 1/4 in . NPT 1/4 in. NPT 1/4 in. NPT 3/8 in. NPT Air hose inside

diamet er Required air

pressure Vibrati on val ue 10.4 m/s2 10.6 m/s2 9.43 m/s2 7.36 m/s2

Noise lev el 1 104 dB(A) 107 dB(A) 108 dB(A) 109 dB(A) Power setting Grip Pisto l style Pistol style Pistol style Pistol style

Overall Leng th 6.0 in. (152 .4 mm) 7.2 in. (182.9 mm) 8.8 in. (223.5 mm) 8.7 in. (221 mm) Housing material Composite Composite Composite Composite Net weight 2.67 lb. (1.21 kg) 4.08 lb. (1.85 kg) 4.35 lb. (1.97 kg) 8.16 lb. (3.70 kg)

Shipping weight 2.69 lb. (1.22 kg) 4.10 lb. (1.86 kg) 4.37 lb. (1.98 kg ) 8.99 lb. (4.08 kg)

400 lbf•ft (542.3 N•m)

25-230 lbf•ft (33.9-311.8 N•m)

5.9 CFM 6.7 CFM 6.7 CFM 7.3 CFM

3/8 in. 3/8 in. 3/8 in. 1/2 in.

90 psi (621 kPa) 90 psi ( 62 1 kPa) 90 psi ( 62 1 kP a) 90 psi (621 kP a)

4-position forward 1-position reverse

750 lbf•ft (1016.9 N•m)

50-550 lbf•ft (67.8- 74 5. 7 N•m)

4-position forward 1-position reverse

1/2 in. (2in. ext ension)

750 lbf•ft (1016.9 N•m)

50-550 lbf•ft (67.8- 74 5. 7 N•m)

4-position forward 1-position reverse

JAT-123

3/4 in.

1300 lbf• f t (1762.6 N•m)

300-1000 lbf•ft

(406.8-1 355.8 N•m)

4-position forward 1-position reverse

The specifi ed valu es ar e emissi on l evels an d are not ne c essari ly to be seen as saf e oper ating le vels . As workplace conditi ons var y, this information is int en ded to al low th e user t o make a bett er esti mat ion of th e hazards and risks involved only.

Specifications were current at time of publication, but because of our policy of continuous improvement, JET reserves the right to change specifications at any time and without prior notice, without incurring obligations.

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Setup and A ss em bly

Any missing parts or damage should be reported immediately to your JET damaged tool. Read this instruction manual thoroug hly for oper ati on , m ai nt en ance and s af ety instructions.

Box contents:

1 Impact wrench 1 Operation and p ar ts m anu al 1 Warranty card

distrib uto r. Do no t use a

Operation

properly lubricated before operation. See “Lubrication” se ctio n.

1. R emove protective cap fr om air i nl et (Figure

1). If an in- lin e oiler is not b eing used, add 4 or 5 drops of air tool oil ( not inc luded) in t o the air inlet.

2. Blow out air line to remove any dirt or

moisture, then connect air supply hose to tool. Set air pressure to 90 psi.

IMPORTANT: Connecting a quick-change coupling directly to the tool is not recomm ended, as vibr ation may c ause the connection to fail. Instead, add a leader hose and install any quick-change couplings farther down the line .

3. Push dri ve sock et (not includ ed) ont o anvil

until it clicks into position.

The impact wr ench must be

Figu re 1

4. Rotat e regulat or di al (Fig ure 1) t o pref erred setting. R egul ator s ettings are f or ref erenc e only and do not indicate specific power settings .

5. Select rotation direction by pushing Forward/ R evers e kn ob – pus h left to l oos en a nut, right to tighten.

withstand rated torque of impact wrench. To loosen nut or bolt:

1. Select reverse rotat ion.

2. Place socket over nut, h old grip firmly, and place oth er hand ov er top of hous i ng. Gently squeeze t ri gger.

Important: If tool cannot loosen nut, DO NOT raise air pressure above 90 psi. If tool’s air regul ator is in low s etting, raise setting and retr y. If tool’s regulator is already at

maximum, do not continue attempts to loosen n ut wit h th is imp act wrench . Use

other methods or tools to loosen nut.

3. Release trigger to stop impact wrench.

To tighten nut or bolt:

1. Ins t all nu t as f ar as p oss ib le by hand.

2. Select forward rotation.

3. Place socket over nut, h old grip firmly, and place oth er hand ov er top of hous i ng. Gently squeeze t ri gger.

Important: If tool stalls wh il e tightening , D O NOT raise air pressure above 90 psi. If tools’ air regul ator is in low s etting, raise setting and retry. If nut will not tighten on

maximum setting, do not continue attempts to tighten nut with this impact wrench. Use other methods or tools to

tighten nu t.

4. Release trigger to stop impact wrench.

NOTE: Do not overt ight en. F asten ers wit h crit ic al torque settings should be fully tightened with a torque wr enc h.

Make sure nut or bolt can

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Maintenance

Lubrication

The imp act wr enc h sh ou ld be lubric ated daily (or before eac h use) with air tool oil throu gh the air inlet. D uring c ontinu al oper ation , it s hould b e reoiled every 1 to 2 hours. This can be done with an in-line oiler, or manually. If done manually, proceed as f ollows:

1. Dis c onnect air hose from tool.

2. Pl ac e 4 or 5 dr ops of air tool oil into air inlet. NOTE: Air tool oil not provided; it is available

at most major hardware and tool stores. SAE #10 oil or s ewing m achin e oil m ay be used as a substitute. Do not use detergent oil.

3. Re-connect air. Run impact wrench at low throttle without load for a few seconds to distribu te the oil throug h out t ool.

4. When finished operating impact wrench, disconnect air hose. Wipe off housing with a dry cloth. Place 4 or 5 drops of air tool oil into air inlet; re-connect air and run tool for a few seconds to distribute t h e oil. D is connect air.

The impact wrench has been pre-greased from the manufacturer, and it is g enerally unnec es sary to grease the tool during its normal life. However, should the t ool r eq uire f ut ure s er vici ng, a greas e fitting is s u pplied ben eat h the hamm er case. Us e Lithium C om pl ex M ol y 2 grease or equi val en t.

Storage

Avoid storing the impact wrenc h in very humid locations which promotes rusting of internal mechan isms. Al ways oil t he tool and disconn ect air hose before storage.

Air system requiremen t s

1. Use proper air hose size (refer to tool specifications). The hose should be just long enough to serve the working area. Ex cessive hose len gth wil l c ause pressure dr op.

2. Make sure air compressor supplies clean, dry air at correct CFM for the impact wrench.

3. Set air pressure to 90 psi.

and/or unclean air will shorte n the tool’s

Excess air pressure

life and may create a hazardous situation.

4. Drain water fr om air c ompr essor tank d aily, as well as any c ondensati on from air lines. W ater in the air li ne may enter the t ool and cause damage.

5. Ch ange filters on the air syst em on a regul ar basis.

6. Air-line pressure may be increased accordi n gly to comp ensate for ext ra-long air hoses (usually over 25 feet). Inside diameter of hose sh oul d b e minimum 3/8-inc h .

General Air Tool Information

If the air tool is not performing according to specif ications , the f oll owing ar e am ong th e most common causes. (See also “Troubleshooting” section.)

• Contamin ated air suc h as a dirt y air system or water in the system.

• Using wrong size tool for the job.

• Poor main ten ance pr actic es, suc h as usin g

excessive air pressure or air volum e.

• Improper or no lubrication.

Rule of Thum b

If it takes more than 8 seconds to tighten or loosen a bolt or nut with an air impact wrench at maxim um settin g, the air wrenc h is too s mall or the air compressor CFM is not powerful enough for the job. Con tinued use in eit her capacit y will cause damage to the tool.

Tool Pressure

JET Air Tools oper ate on 70- to-100 ps i (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.

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Air System Recommendat io ns

Equip the air compressor intake with a replaceable air filter that can be easily cleaned.

Use safety shut-off valves so air flow can be stopped quickly in case of a line break.

When us ing m ultipl e hoses , air hoses s hould be larger than leader hose. Join multiple hoses directly, rather than with quick connect fittings which may c ause press ure dr ops and tool pow er reduction.

Use anti-whip devices acros s hose couplings to prevent hose from whipping in the event of a hose failure or c oup li ng dis connect.

Always us e m oistur e tr aps at t he c om press or for the mai n dis t r ib ut ion line. Us e m ois t ur e t r aps and in-line oi lers on eac h downli ne that is to be used for air tools. (See Figure 2). Place oiler as close to air tool as possible for best lubr ication.

Lubrication

Use a light oi l contai ning rust inhi bitors, such as SAE #10. Many JET air tools have integral oil reservoirs, which should be kept filled when in-line oilers ar e not us ed.

If greasing is required, use a grease that is highly water r esist ant f or fr ont c ase c ompon ents on air impact wrenches, grin d ers an d s and er s .

Recycling

Protect the environment. Your tool contains materials which can be recovered or recycled. When its us eful life has expired, pl ease leave tool at a specialized facility.

Figu re 2

Recommended arrangement of air piping and air line system

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Troubleshooting JAT-120/121/122/123 Impact Wrenches

Any disass embly of the tool should be don e by qualifi ed service pers onnel. For prob lems not ad dressed below, contact JET technical service at 800-274-6846.

Problem Possible cause Remedy

Tool will n ot st art . Air val v e cl os ed or obstructed. Open valve; cl ear any obstructions.

Dirt or gum deposits on components.

Rotor van es or ot h er c om ponents are worn.

Trigger in op er ab l e. Clean tri gg er m ec h anis m to ens ure

Bearing( s ) w orn. Disassemble and insp ect bearing.

Excess i ve or abnormal vibration.

Abnormal sound. Loose fasteners. Check tightness of housing and

Loss of power; erratic action.

Impacts sufficiently, bu t will not remove fastener.

Will not impact. Damaged impact mechanism. Replace mechanism. Housing becomes hot

during op eration.

Bearings w orn. Disassembl e an d ins p ect bearing.

Low air pressure. Verify compressor has proper CFM

Moistur e or obs t r uc t i on in air hose.

Improp er siz e of air tr ans m is s i on lines, hos es, fitti ngs , or couplings.

Dirt or gum deposits on components.

Rotor van es are worn. Replace vanes ( ent ire set). Worn socket. Use good condition sockets. Worn impact mechanism. Replace components.

Insuff ic i ent lubr ication. Lubricate with air to ol oi l. Worn components. Replace components as needed.

Flush tool wit h gu m solvent. If problem persists, disassemble, clean and lubricate internal parts.

Replac e w orn c om ponents. (Repl ac e van es as an entire set.)

free movement. Replace mechanism if needed.

Greas e or r epl ac e as n eed ed .

external fasteners.

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.

Air supply must be clean and dry. Clean out air h os e( s ) and remove any kinks or bends.

Use appropriate-si z ed air lines/hoses. Verif y prop er f itt ings/coupl in gs .

Flush tool wit h gu m solvent. Check and cl ean air filt er on compressor. Clean ext er n al areas of tool. If problem persists, disassemble, clean and lubricate internal parts.

10 JAT-120,121,122,123 Impact Wrenches

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Problem Possible cause Remedy

Severe air l eak ag e. (Note: Min imal escape of air is often n or m al f or air tools.)

Air valve obs t r uc ted or damaged. Clean or rep l ac e. Housing loose or damaged . Tighten or repl ac e as n eed ed .

Replacem e nt par t s

Service parts are listed on the following pages. To order parts or reach our service department, call 1-800274-684 8 Mond ay throu gh Frid ay, 8: 00 a.m. to 5: 00 p.m. CST. Pl ease hav e the st ock num ber and s erial number of y our t ool available when you call, s o that we m ay serve you quic kl y and accurately.

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#505120, JAT-120, 3/8-inch Impact Wrench – exploded view

43 44

12 JAT-120,121,122,123 Impact Wrenches

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#505120, JAT-120, 3/8-inch Impact Wrench – parts list

Index Part No. Description Qty

1 JAT120-01 Motor housing 1 2 JAT120-02 Reverse valve 1 3 JAT120-03 O-Ring S16 NBR ø15.5x1.5 1

4 JAT120-04 5 JAT120-05 Throttle valve seat 1

6 JAT120-06 O-Ring 1019NBR ø18.8x1.9 1 7 JAT120-07 Throttle valve assembly 1 8 JAT120-08 Spring 1

9 JAT120-09 Air inlet 1 10 JAT120-10 O-Ring P20 NBR ø19.8x2.4 2 11 JAT120-11 O-Ring P22 NBR ø21.8x2.4 1 12 JAT120-12 Exhaust deflector 1 13 JA T 1 20-13 Spr i n g pi n ø3 . 5x28L 1 14 JA T 1 20-14 Spr i n g pi n ø2x20L 1 15 JAT120-15 Trigger assembly 1 20 JAT312-09 O-Ring S29 NBR ø28.5x2 1 21 JAT120-21 Pin 12L14 1 22 JAT120-22 Spring 1 23 JAT120-23 Spring pin ø2x6L 1 24 JAT120-24 O-Rin g NBR ø34x2

JAT120-RPK, Repair Kit, contains 3,4,6,8,10(2),11,20,22,24,29(6),34,43,44,45,47,48 JAT120-RBK, Rebuild Kit, contains 27,30,31,38(2),39

O-Ring AS016 NBR ø15.6x1.78

Index Part No. Description Qty

26 BB-R6 Ball bearing EE3 (R6) 1 27 JAT120-27 Cylinder assembly 1 28 JAT120-28 Rotor 1

29 JAT120-29 Rotor vane 6 30 JAT120-30 Spring pin ø2x10 1 31 JAT120-31 Front end plate 1 32 JAT120 -32 Ball bearing 6901 1 34 JAT120-34 Gasket 1 36 JAT120-36 Hammer cage 1 37 JAT120-37 Hammer 2 38 JAT120-38 Hammer pin 2 39 JAT120-39 Anvil 3/8in. 1 41 JAT120-41 Hammer case assembly 1 42 JAT120-42 Reverse knob 1 43 SB-1/8 Steel ball 1/8in. 1 44 JAT120 -44 Steel ball spring 1 45 JAT120-45 Damping material 1 46 JAT120 -46 Screw #10-24x80 SCM435 4 47 JAT120-47 O-Ring NBR ø6.6x8.2x1.7 1 48 JAT120-48 Socket retainer 1 58 JAT120-58 Reverse valve 1

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#505121, JAT-121, 1/2-inch Impact Wrench – exploded view

14 JAT-120,121,122,123 Impact Wrenches

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#505121, JAT-121, 1/2-inch Impact Wrench – parts list

Index Part No. Description Qty

1 JAT121-01 Motor housing 1

2 JAT121-02 Reverse valve 1

3 JAT120-03 O-Ring S16 NBR ø15.5x1.5 1

4 JAT120-04

5 JAT121-05 Throttle valve seat 1

6 JAT120-06 O-Ring 1019 NBR ø18.8x1.9 1

7 JAT121-07 Throttle valve assembly 1

8 JAT121-08 Spring 1

9 JAT121-09 Air inlet 1 10 JAT120-10 O-Ring P20 NBR ø19.8x2.4 2 11 JAT120-11 O-Ring P22 NBR ø21.8x2.4 1 12 JAT121-12 Exhaust deflector 1 13 JA T 1 20-13 Spr i n g pi n ø3 . 5x28L 1 14 JAT120-14 Spring pin ø2x20 1 15 JAT121-15 Trigger assembly 1 20 JAT121-20 O-Ring S38 NBR ø37.5x2 1 21 JAT120-21 Pin 12L14 1 22 JAT121-22 Spring 1 23 JAT120-23 Spring pin ø2x6L 1 24 JAT121-24 O-Ring S46 NBR ø45.5x2 1 26 BB-R6

JAT121-RPK, Repair Kit, contains 3,4,6,8,10(2),11,20,22,24,29(7),34,43,44,45,47,48 JAT121-RBK, Rebuild Kit, contains 27,30,31,38(2),39

O-Ring AS016 NBR ø15.6x1.78

Ball bearing EE3 (R6)

Index Part No. Description Qty

27 JAT121-27 Cylinder assembly 1 28 JAT121-28 Rotor 1 29 JAT121-29 Rotor vane 7

30 JAT121-30 Spring pin ø2.5x10 1 31 JAT121-31 Front end plate 1 32 JAT121-32 Ball bearing EE4 CM/5K(R8) 1 33 JAT121-33 Washer 1 34 JAT121-34 Gasket 1 36 JAT121-36 Hammer cage 1 37 JAT121-37 Hammer 2 38 JAT121-38 Hammer pin 2 39 JAT121-39 Anvil 1/2in. 1 41 JAT121-41 Hammer case assembly 1 42 JAT121-42 Reverse knob 1 43 SB-1/8 Steel ball 1/8in. 1 44 JAT121 -44 Steel ball spring 1 45 JAT121-45 Damping material 1 46 JAT121 -46 Screw #10-24x92 SCM435 4 47 JAT121 -47 O-Ring P7 NBR ø6.8x1.9 1 48 JAT121-48 Socket retainer 1 58 JAT121-58 Reverse valve 1

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JET 15

#505122, JAT-122, 1/2-inch Impact Wrench – exploded view

16 JAT-120,121,122,123 Impact Wrenches

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#505122, JAT-122, 1/2-inch Impact Wrench – parts list

Index Part No. Description Qty

1 JAT121-01 Motor housing 1

2 JAT121-02 Reverse valve 1

3 JAT120-03 O-Ring S16 NBR ø15.5x1.5 1

4 JAT120-04

5 JAT121-05 Throttle valve seat 1

6 JAT120-06 O-Ring 1019 NBR ø15.6x1.78 1

7 JAT121-07 Throttle valve assembly 1

8 JAT121-08 Spring 1

JAT121-RPK, Repair Kit, contains 3,4,6,8,10(2),11,20,22,24,29(7),34,43,44,45,47,48 JAT122-RBK, Rebuild Kit, contains 27,30,31,38(2),54

O-Ring AS016 NBR ø15.6x1.78

Ball bearing EE3 (R6)

Index Part No. Description Qty

27 JAT121-27 Cylinder assembly 1 28 JAT121-28 Rotor 1 29 JAT121-29 Rotor vane 7 30 JAT121-30 Spring pin ø2.5x10 1

31 JAT121-31 Front end plate 1 32 JAT121-32 Ball bearing EE4 CM/5K(R8) 1 33 JAT121-33 Washer 1 34 JAT121-34 Gasket 1 36 JAT121-36 Hammer cage 1 37 JAT121-37 Hammer 2 38 JAT121-38 Hammer pin 2 41 JAT121-41 Hammer case assembly 1 42 JAT121-42 Reverse knob 1 43 SB-1/8 Steel ball 1/8in. 1 44 JAT121 -44 Steel ball spring 1 45 JAT121-45 Damping material 1 46 JAT121 -46 Screw #10-24x92 SCM435 4 47 JAT121 -47 O-Ring P7 NBR ø6.8x1.9 1 48 JAT121-48 Socket retainer 1 54 JA T 1 22-54 Ex te nd ed anvil 1/ 2i n. 1 58 JAT121-58 Reverse valve 1

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JET 17

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#505123, JAT-123, 3/4-inch Impact Wrench – exploded view

18 JAT-120,121,122,123 Impact Wrenches

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#505123, JAT-123, 3/4-inch Impact Wrench – parts list

Index Part No. Description Qty

1 JAT123-01 Motor housing 1

2 JAT123-02 Reverse valve 1

3 JAT123-03 O-Ring NBR ø19.8x1.9 1

4 JAT123-04 O-Ring NBR ø21.95x1.78 1

5 JAT123-05 Retainer IRTW-21 (SK7) 1

6 JAT123-06 Throttle valve seat 1

7 JAT123-07 O-Ring NBR ø17x1.7 1

8 JAT123-08 Throttle valve assembly 1

9 JAT123-09 Throttle valv e spring 1 10 JAT123-10 O-Ring NBR ø20.5x3 1 11 JAT123-11 Exhaust deflector 1 12 JAT123-12 O-Ring S26 NBR ø25.5x2 1 13 JAT123-13 Air inlet 1 14 JAT123-14 Spring pin ø4x28 1 15 JAT123-15 Trigger kit 1 17 JAT120-14 Spring pin ø2x20 1 18 JAT123-18 Damping material 1 20 JAT123-20 O-Ring S50 NBRø49.5x2 1 21 JAT120-21 Pin 12L14 1 22 JAT123-22 Spring 1 23 JA T 1 23-23 Spr i n g pi n ø2x7 SK5 1 24 JAT123-24 Ball bearing 600 1 C3/L627 1

JAT123-RPK, Repair Kit, contains 3,4,5,7,10,12,18,20,22,25,27(6),32,40,41,43,44 JAT123-RBK, Rebuild Kit, contains 26,29,30,35(2),36

Index Part No. Description Qty

25 JAT123-25 O-Ring 1 26 JAT123-26 Cylinder assembly 1 27 JAT123-27 Rotor vane 6 28 JAT123-28 Rotor 1 29 JA T 1 23-29 Spr i n g pi n ø3 . 5x12 SK5 1 30 JAT123-30 Front end plate 1 31 JAT123 -31 Ball bearing 6003 CMSM 1 32 JAT123-32 Hammer case gasket 1 33 JAT123-33 Hammer cage 1 34 JAT123-34 Hammer 2 35 JAT123-35 Hammer pin 2 36 JAT123-36 Anvil 3/4in. 1 38 JAT123-38 Hammer case assembly 1 40 JAT123-40 O-Ring P11 ø10.8x2.4 NBR 1 41 JAT123-41 Retainer 1 42 JAT123-42 Reverse knob 1 43 SB-1/8 Steel ball 1/8 in. 1 44 JAT123-44 Spring 1 45 JAT123 -45 Screw M6x1.0x110 SCM435 4 47 JAT123-47 O-Ring S24 NBR ø23.5x2 1 58 JAT123-58 Reverse valve 1

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JET 19

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427 New Sanford Road

LaVergne, Tennessee 37086

Phone: 800-274-6848

20 JAT-120,121,122,123 Impact Wrenches

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www.jettools.com

JET JAT-120 Operating Instructions and Parts Manual

Specifications and Main Features

Frequently Asked Questions

User Manual