Jet 505483, JAT-483 Operations & Parts Manual

Pneumatic Extended Cut-Off Tool

#505483, JAT-483

Operation & Parts Manual

M-505483

Edition 1

11/2016

JET

427 New Sanford Road

LaVergne, TN 37086

Ph.: 800-274-6848

www.jettools.com

Copyright © 2016 JET

Safety warnings

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 c ause 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 m ay result from
that use.

5. Always wear approved s afet y glass es or f ace
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.

11. The air tool must be properly lubricated before
operating.

12. 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.

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

14. Do not operate this tool while tired or under
the influence of drugs, alcohol, or any
medication.

15. Adopt a comfortable posture with proper
balance, and maintain secure footing at all
times. Non-slip footwear or anti-skid floor
strips are recommended.

16. Do not w ear loose clothing or jewelry. Confine
long hair.

17. Excessive air pressure and too much free
rotation may decrease life of the tool and may
cause a hazardous situation.

7. Wear gloves and protective clothing if
operation produces sparks or flying particl es.
Gloves should be tight-fitting, without frayed
fingers or hanging threads. Keep hands and
body away from the working area of tool.

8. CALIFORNIA PROPOSITION 65 WARNING:
This product contains chemicals known to the
State of California to cause cancer, or birth
defects or other reproductive harm.

9. This product, when used for welding, cutting,
or working with metal, produces fumes,
gases, or dusts which contain chemicals
known to the State of California to cause birth
defects and, in some cases, cancer.
(California Health and Safety Code Section

25249.5 et seq.)

10. Do not operate an air tool continually at full
throttle without a work load on the tool.

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JAT-483 Extended Cutoff Tool

18. 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.

19. Air hose may cause tripping hazards; keep
hose away from traffic areas.

20. Do not use this tool near flammable objects,
or in potentially explosive environments. Do
not use near live electrical wires.

21. Do not use power tools in damp or wet
location, or expose them to rain. Keep work
area well lighted.

22. Do not leave a connected tool unattended.
When not in use, disconnect tool from air
source.

23. Shut off air supply and discharge any residual
pressure from tool before removing hose,
making adjustments, changing accessories,
or storing tool.

24. M ake sure tool is switched off, and your finger
off the trigger, before connecting to air supply.

25. Remove adjusting keys and wrenches before
turning on tool.

26. Keep visitors a safe distance from the work
area. Keep children away.

34. Do not lubricate the tool with combustible
liquids, such as kerosene, diesel or jet fuel.

35. Do not dispose of this tool with normal
household waste. Never dispose of the air tool
into fire.

Specific warnings for Cut-off tool

36. If you are not familiar with the prop er and safe
operation of a pneumatic cut-off tool, do not
use until proper training and knowledge have
been obtained.

27. Give your work undivided attention. Looking
around, carrying on a conversation and
“horse-play” are careless acts that can result
in serious injury.

28. 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.

29. 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.

30. Compressed air can be harmful if directed
toward sensitive areas of t he body, and may
propel small particles caught in the air stream.
Exercise proper caution.

31. Use only recommended accessories;
improper accessories may be hazardous.

32. Maintain tools with c are. Keep air tool clean
and oiled for best and safest performance.

33. 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.

37. Speed rating of cutting disc must equal or
exceed rated free speed of cut-off tool.

38. Inspect cutting discs for cracks or stress.
Never use a damaged disc.

39. Make sure disc is secured on tool before
operating.

40. Make sure workpiece is secure and will not
shift while operating cut-off tool. Do not hold
workpieces with your hand.

41. Keep hands away from disc and guard duri ng
operation.

42. Do not operate without guard attached and
properly positioned.

43. Use onl y cutting discs of proper size for this
tool. Do not modify a disc or use bushings,
flanges, etc., to mount a disc of incorrect size.

44. Disc must rotate in opposite direction to
direction of feed.

45. Avoid jamming, twisting, or pinching cutting
disc in workpiece.

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.

JET

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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-483 Pneumatic Cut-off Tool. This manual contains instructions on safety precautions, general operating
procedures, maintenance procedures and parts breakdown. Your tool has been desi gned and constructed
to provide consistent, long-term operation if used in accordance 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
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 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.

Register your product using the mail-in card provi ded, or regi st er onl ine:
http://www.jettools.com/us/en/service-and-support/warranty/registration/

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JAT-483 Extended Cutoff Tool

Tool specifications

Model number JAT-483

Stock number 505483
Cutting disc size (Dia. x thickness) 100 x 0.8 mm (4 x 1/32 in.)
Cutting disc hole diameter 9.6 mm (3/8 in.)
Cutting capacity metal 19~25.4 mm (3/4 – 1 in.)
Horsepower 1.0
Free speed (@90psi) 14,000 RPM
Average air consumption (@90psi) 4 CFM
Air inlet 1/4 in. NPT, swiveling
Air hose inside diameter 3/8 in.
Required air pressure 90 psi (621 kPa)
Vibration value 3/8 m/s2
Noise level 1 85.5 dB(A)
Grip Inline
Disc guard steel, 126-degree, 11-position, rotating
Overall Length 14.6 in. (371 mm)
Housing material Composite
Net weight 4.1 lb. (1.87 kg)

Shipping weight 4.8 lb. (2.19 kg)

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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 make a better estimation of the
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.

JET

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