Operating and Maintenance Instructions
Air Hammer
Model JNS-2060
JET
427 New Sanford Road
LaVergne, Tennessee 37086 Part No. M-JNS2060
Ph.: 800-274-6848 Revision A2 05/2014
www.jettools.com Copyright © 2014 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)
• Accessories carry a limited warranty of one year from the date of receipt.
• Consumable 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 Co vered
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.
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 pro of
of initia l p u rch a s e whe n 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 Informa t io n
JET is constantly adding new products. For complete, up-to-date product information, check with your local distributor
or visit the JET website.
How S tat e Law A pplies
This warranty gives you specific legal rights, subject to applicable state law.
Limitations on This Warranty
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 LIABLE FOR DEATH, INJURIES TO PERSONS OR PROPERTY, OR 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
Product Listing with Warranty Period
90 Days – Parts; Consumable items; Light-Duty Air Tools
1 Year – Motors; Machine Accessories; Heavy-Duty Air Tools; Pro-Duty Air Tools
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
Accessories; Shop Tools; Warehouse & Dock products; Hand 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 sold in Canada by JPW Industries, Inc.
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1. Read and understand this entire manual before attempting assembly or operation.
2. Read and understand t he warnings posted on the tool and in this m anual. Failure to com ply with all of
these warnings may c ause serious i njury.
3. Replace the warning labels if they become obscured or remov ed.
4. This air hammer is designed and intended f or use by properly trained and experienced personnel
only. If you are not familiar with the proper and safe operation of an air hammer, do not use unt il
proper trai ning and k nowledge have been obtained.
5. Do not use this tool for other t han its intended use. If used for other purpo se s, JET discl aims any real
or implied warranty and holds itself harmless f r om any injury that may result from that use.
6. Always wear approved safety glasses/f ac e shi elds while using this air hammer. (Everyday eyeglasses
only have impact resi stant lenses; they are not safety gla sses.)
7. Wear ear protector s (plugs or muffs) if the noise exc eeds normal levels.
8. Use gloves if needed when operat ing the ai r hamm er. Keep hands and body a way fr om the working
area of the tool.
9. Some dust created by power sanding, sawing, grinding, drilling and other construction activities
contain chemi cals known to cause cancer , bir th defects or other r eproductiv e harm . Some exampl es
of these chemic als are:
• Lead from lead based paint.
• Crystalli ne sil ic a from bricks, cement and other m asonry pr oduc ts.
• Arsenic and chromium from chemically treated lum ber .
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.
10. Do not operate this tool while tired or under the infl uence of dr ugs, alcohol or any medication.
11. Maint ain proper bal ance and keep your footi ng at all tim es. Non-sli p footwear or anti -skid f loor strips
are recommended.
12. Secure the work with clam ps or a vise so that both hands are free to operate the air hammer.
13. Bef ore operating this air hammer, rem ove tie, rings, watches and other jewelry , and roll sleeves up
past the elbows. Remove all loose clothing and confine long hair.
14. Excessive air pr essure will decrease the life of the tool and may cause a hazardous situation.
15. Check air hoses for wear, and keep them away from heat and sharp edge s. Do not carry the air
hammer by the air hose.
16. Do not use this air tool near flammable objects or potentially explosiv e environments.
17. Do not leave a connected tool unattended. When not i n use, disconnect tool from the air source.
18. Disconnect ai r hammer from air supply before making adjustments or changing accessories.
19. Keep work area clean and fr ee of clutter.
20. Keep visit or s a safe di stanc e from the work area. Keep children away.
21. Giv e your work undivi ded attention. Looki ng around, carryi ng on a conversati on and “horse-play” ar e
careless acts that can r esul t in serious injury.
22. Do not f orce a tool or attachment to do a j ob for which i t was not designed. The ri ght tool will do the
job better and saf er .
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23. Repetitiv e motions and/or exposure to constant vibr ation can be harmf ul to hands and arm s. Take
breaks and relax your hands occasionally during ex tended operation of the air hamm er.
24. Compr essed air can be harmf ul if directed toward sensi tive ar eas of the body, and m ay propel small
particles caught in the air stream. Exercise proper c aution.
25. Use recommended accessories; improper accessories may be hazardous.
26. Maintain t ools with c ar e. Keep the air hammer clean and oiled f or best and safest performance.
Familiariz e you rself with the following safet y no tices used in this manual:
This means that if precau tion s are not heeded, it may result in minor injury and/or
possible machine damage.
This means that if precau tions are not heeded, it may result in serious injury or
possibly even d eath.
Specifications
Stock Number............................................................................................................................. JNS-2060
Stroke Length (i n.) ............................................................................................................................. 2-5/8
Bore Diameter (in.) ............................................................................................................................... 3/4
Blows Per Minute.............................................................................................................................. 3 ,000
Shank Size (in.) ............................................................................................................ 0.401 Parker taper
Required Air Pr essure (PSI)................................................................................................................... 90
Average Air Consumption (CFM) .......................................................................................................... 5.5
Air Inlet (in.) .................................................................................................................................. 1/4 NPT
Air Hose Inside Diameter (in.) ............................................................................................................... 3/8
Vibration Value (m/s2) ........................................................................................................................y:7.5
Overall Lengt h (in.) ............................................................................................................................ 8-1/4
Net Weigh t (lb s.) ...................................................................................................................................... 4
Shipping Weigh t (lbs.) ........................................................................................................................... 5.8
The above specifications were current at the time this m anual was published, but because of our policy of
continuous impr ovement, JET reserves the ri ght to change specifications at any tim e and without pri or
notice, without incurring obligations.
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Unpacking
Remove all parts from the box and check for
shipping damage. Report any damage
immediately to your distributor and shipping
agent.
Compare the contents of the box with the
following parts list to make sure all parts are
intact. Any missing parts should be reported to
your distributor. Read this instruction manual
thoroughly for operation, maintenance and
safety instructions.
Contents of the Box
1 Air Hammer
1 Quick Release Chuck
5 *Chisels:
1 Peening Tool, 5” Lg.
1 Nut Splitter, 5” Lg. (3mm opening)
1 Panel Cutter, 5” Lg.
1 Flat Chisel, 5” Lg.
1 Pipe Cutter, 5” Lg.
1 Operating Instr uc tions and Parts Manual
1 Warranty Card
* Some typical uses for chisels:
• Peening Chisel – for peening welds, punching, etc.
• Nut Splitter – for removal of corroded or frozen nuts
• Flat Chisel – scraping, chippi ng, scaling, metal cutting, cleaning welds, paint scraping, rivet busting, etc.
• Panel Cut ter – for automotive panels, vehicle extrication in r escue operations, etc.
• Pipe Cutter – c utting off tail pipes
Read and understand the entire contents of this manual before attempting set-up
or operation! Failure t o co mply may cause serious injury.
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Operation
1. The Air Ham m er m ust be pr operly lubricated
before operating. See “M aintenance” section
for oiling instruc tions.
2. Pull back on the knurled ring of the chuck
and insert the chisel shank into the chuck
(Figure 1). T he ledge on the shank must go
beyond the four steel balls inside the chuck
in order to be secured. (NOTE: It may
require som e f or ce to m ove t he chi sel l edge
beyond the steel balls.) When the chisel is
installed, release the knurled ring.
3. Remove the protectiv e c ap from t he air inlet,
and connect the air hammer to the air
supply. Make sure the air pr essure is set t o
90psi.
IMPORTANT: Connecting a quick-change
coupling directly to the air hammer is not
recommended, as vibration may cause the
connection to fail. Instead, add a leader
hose and install any quick-change coupli ngs
farther down the li ne.
5. Av oid storing the air hammer in very humi d
locations which prom otes rusting of internal
mechanisms, and always oil it before
storage.
Figure 1
4. Press the blade of the chisel against the
target surface, and press the trigger t o begin
the hammeri ng action. Adjust the speed a s
needed with the r egulator knob (Figure 2).
Maintenance
The Air Hammer should be lubricated daily (or
before each use) with air tool oil through the ai r
inlet. During continual operation, it should be
oiled every 1 to 2 hours. T his can be done either
with an in-line oiler, or manually. If done
manually, pr oc eed as follows:
1. Disconnect the air hose from the air
hammer.
2. Place one or two drops of air tool oil* into
the air inlet (Fi gur e 2) .
[*NOTE: Air tool oil not provided. It may be
purchased from your JET dealer, or is
available at most major hardware and tool
stores. SAE #10 weight oil may be used as
a substitute. Do not use detergent oil.]
3. Re-connec t the air. Run t he air hammer for
a few seconds to distribute the oil
throughout the tool. NOTE: Excess oil may
be propelled from the cylinder of the tool;
point it in a safe dir ection.
4. When finished operating the air hammer,
before stori ng it disconnect t he air hose and
place 4 or 5 drops of air tool oil i nto the air
inlet; r e- c onnec t the air and run the tool f or a
few seconds to distri bute the oil.
Figure 2
Air Connection
1. Make sure the air compressor supplies
clean air at the correct CFM for the air
hammer.
Excess air pressure and/or
unclean air will shorten the tool’s life and
may create a hazardous situation.
2. Set air pressure to 90 psi.
3. Drain the water f r om the air c om pr essor tank
daily, as well as any conde nsation from t he
air lines. W ater in the air line may ent er the
tool and cause dam age.
4. Change filters on the air sy stem on a regular
basis.
5. Air line pressure should be increased
accordingl y to compensate f or ext ra long ai r
hoses (usually over 25 feet). I nsi de diameter
of the hose must be a minimum of 3/8”.
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Troubleshooting
Trouble Probable Cause Remedy
Air pressure is too low. Adjust air pressure to 90p si .
Air Hammer does not
operate at normal
speed; or speed
remains constant
when turning t he
regulator.
Stops operating.
Air lines are twisted, or there is a
blockage in them .
Air compressor is malfunctioning, or is
not suffici ent capac ity for the tool.
Regulator is m alfunctioning. Replace regulator.
No air pressure.
Throttle or tri gger is malfunctioning.
Untwist or clean out air lines.
Replace air compr essor.
Check air compressor and hoses.
Make sure compressor is set at 90psi,
and air lines are not twisted.
Disassemble and r epair/replace
throttle or trigger .
Hammering power is
diminished.
Starts immediately as
soon as air is
connected.
Abnormal vibration
and/or excessive
heat develops in the
tool.
Air leakage.
Throttle or tri gger is malfunctioning.
Improper l ubri c ation.
Check connections at the air inlet, the
o-rings, etc . Mak e adjustments or
repairs as needed.
Inspect and repair throttle and/or
trigger.
Lubricate pr oper ly ac c or ding to
instructions in this manual.
To order parts or reach our service department, call 1-800-274-6848 Mon day through Friday (see our
website for business hours, www.jett ools.com). Havi ng the Model Number and S er ial Num ber of your tool
available when you call wi ll allow us to serve you quickly and accurately.
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Parts List for JNS-2020 and JNS-2060 Air Hammers
Index No. Part No. Description Qty
01 ............. JNS2020-01 .............Handle......................................................... ......................................... 1
02 ............. JNS2020-02 .............Pin............................................................... ......................................... 2
03 ............. JNS2020-03 .............Ball Seat ...................................................... ......................................... 1
04 ............. JNS2020-04 .............O-Ring......................................................... ......................................... 1
05 ............. JNS2020-05 .............Regulator .................................................... ......................................... 1
06 ............. JNS2020-06 .............Trigger......................................................... ......................................... 1
07 ............. JNS2020-07 .............O-Ring......................................................... ......................................... 1
08 ............. JNS2020-08 .............Pin............................................................... ......................................... 1
09 ............. JNS2020-09 .............Pin Seat ...................................................... ......................................... 1
10 ............. JNS2020-10 .............Throttle Spring ............................................. ......................................... 1
11 ............. JNS2020-11 .............Hose Adaptor .............................................. ......................................... 1
12 ............. JNS2020-12 .............Upper Valve Case ....................................... ......................................... 1
13 ............. JNS2020-13 .............Valve Disc ................................................... ......................................... 1
14 ............. JNS2020-14 .............Lower Valve Case ....................................... ......................................... 1
15 ............. JNS2020-15 .............Piston .......................................................... ......................................... 1
16 ............. JNS2020-16 .............Cylinder ....................................................... ......................................... 1
17 ............. JNS2060-17 .............Quick Release Chuck .................................. ......................................... 1
18 ............. JNS2020-18 .............Peening Chisel, 5” Lg. (s hown on page 5) .... ......................................... 1
19 ............. JNS2020-19 .............Nut Splitter Chisel, 5” Lg, 3mm opening (shown on page 5) ................... 1
20 ............. JNS2020-20 .............Flat Chisel, 5” Lg. (shown on page 5) ........... ......................................... 1
21 ............. JNS2020-21 .............Panel Cutter Chi sel, 5” Lg. (shown on page 5) ....................................... 1
22 ............. JNS2020-22 .............Pipe Cutter Chisel, 5” Lg. (shown on page 5) ......................................... 1
................. JNS2020-WL ...........Warning Label (not shown) .......................... ......................................... 1
................. JSG-1304
................4 Pc. Chisel Set (Includes #18, 19, 20 and 21) .........................................
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