BLACK NICKEL 3" AIR CUTOFF TOOL
OWNER’S MANUAL
WARNING:
Read carefully and understand all INSTRUCTIONS before
operating. Failure to follow the safety rules and other basic
safety precautions may result in serious personal injury.
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WARNINGS AND SAFETY RULES
1.
Wear proper clothing. Always use ANSI-approved safety impact goggles when
assembling or using this cutoff tool. Wear long sleeved shirts, long pants and hard-toed
shoes. Take off any loose fitting jewelry and keep long hair covered to prevent being
caught in moving parts.
2.
3.
4.
Wear proper breathing protection. Remember that a “dust mask” is not a breathing
respirator. Use a respirator that uses charcoal filters for the best protection.
Keep work area clean and well lighted. A dim and/or cluttered work area invites
personal injury.
Keep children and pets away from work areas. Children can be a distraction and
should be supervised by an adult when near the work area. Never allow children to play
with this product even if it is turned off.
5.
6.
Store idle tools properly. Keep this cutoff tool out of the reach of children and untrained
operators.
Do not use the cutoff tool if under the influence of alcohol or prescription drugs.
Doing so may cause damage to the tool, or personal injury. Do not use this or any tool if
you are tired. Use common sense at all times.
7.
Check for damaged parts. Before using this cutoff tool, carefully check for any parts that
may be missing or damaged and any other conditions that may affect the operation of this
tool. Replace or repair damaged and worn parts immediately using only qualified repair
facility.
8.
9.
Always use the proper tools. This cutoff tool was designed for a specific task. Do not
alter this tool, or use it for a purpose for which it was not intended.
Be careful when connecting/disconnecting air supply. It is recommended to use
quick-disconnects (not included) rather than screw-on air connections.
10. Use compressed air only. Clean, dry regulated compressed air at 90 PSI. Never use
oxygen, carbon dioxide, combustible gases, or any other bottled gas as a power source
for this tool.
11. Always disconnect air supply when this tool is not being used.
12. Take caution as some woods contain preservatives such as copper chromium
arsenate (CCA) which can be toxic. When cutting these materials, extra care should be
taken to avoid inhalation and minimize skin contact.
13. 3" Cutting wheel: Only use a standard 3" cutting disc (rated at 18,000 RPM or greater)
with this air high speed cutter. Never use any other type of disc, blade or cutter on this air
tool. This may cause the tool to operate incorrectly.
NOTE: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be
understood by the operator that common sense and caution are factors that cannot be
built into this product but must be supplied by the operator.
NOTE: READ ALL INSTRUCTIONS BEFORE USING THIS PRODUCT
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SET UP
Fig. 1
NOTE: If you are not using an automatic oiler system, before operation, add a few drops
of Pneumatic Tool Oil to the airline connection. Add a few drops more after hour of
continual use.
1. You will need to prepare a 1/4" air connector (not included) to connect to the air inlet on the
cutoff tool. First, wrap the 1/4" air connector with pipe thread seal tape (not included) before
threading it into the inlet. Connect the 3/8" ID air source hose (not included) to a
quick-disconnect coupler (not included) and then to the cutoff tool.
2. Set the air pressure on your compressor to 90 PSI. Do not exceed the recommended air
pressure of 90 PSI.
3. Check the air connection for leaks.
4. Disconnect from the air hose until next instructed to reconnect.
ASSEMBLY
The only assembly required is the mounting of a cutting wheel.
WARNING! The cutter must be disconnected from the air supply when changing the
cutting wheel. After disconnecting the air supply, squeeze the trigger to make sure no air
remains in the unit.
1. Place a wrench on the flats of the spindle to hold it in place.
2. Using the key, loosen and remove the locking nut and the washer.
3. Remove and replace the cutting wheel (not included).
4. Replace the locking nut and the washer. Tighten the locking nut while holding the spindle in
place with a wrench.
OPERATION
WARNING! Always check the cutting wheel for possible wear. Do not use a worn, torn, or
defective cutting wheel.
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WARNING! Position the high speed cutoff tool so that the attached guard is in position
between you and the workpiece to protect you from flying debris.
WARNING! Guard must always be attached to high speed cutoff tool.
1. Check the cutting wheel for wear. Replace if necessary.
2. Set the compressor to 90 PSI. Do not exceed 90 PSI.
3. Connect the cutoff tool to the air hose as explained.
4. Using both hands to grip the cutoff tool, gently squeeze down on the trigger. Allow the tool
to run for a few seconds before approaching the workpiece.
5. Let the cutoff tool do the work. Do not apply force on the workpiece.
6. When finished, release the trigger.
7. Disconnect the air hose.
8. Gently squeeze down on the trigger to release any air that might still remain in the tool.
MAINTENANCE
WARNING! Always disconnect the air supply before attempting any maintenance.
After disconnecting the air supply, squeeze the trigger to make sure no air remains in the unit.
1. After each use, wipe down the cutoff tool with a lint-free cloth. Do not use solvents or harsh
detergents to clean the tool.
2. Make sure the air inlet is clean of dirt, grease, or debis.
3. Check the condition of the cutting wheel before each use. Replace if necessary.
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Diagram
Parts List
Part
No.
1
Description
Qty. Part No.
Description
Qty.
Housing
1
1
18
19
Washer
Washer
1
1
Trigger
(Includes #2, 31, 32, 33)
Pin
2
3
4
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
20
21
22
23
24
25
26
27
28
29
30
31
32
O-ring
Front Plate
Bearing
Ball
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
Valve Stem
Spring
5
6
Valve Plug
Air Regulator
Valve Bushing
O-ring
7
Spindle
Retainer
Guard
8
9
10
11
12
13
14
15
16
17
O-ring
Nut
O-ring
Cutting Wheel
Muffle
O-ring
Bearing
Air Inlet
Lever
End Plate
Rotor
Pin
Rotor Blade
Cylinder
33
34
Spring
Washer
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Northern Tool + Equipment Co.,
2800 Southcross Drive West
P.O. Box 1499 Burnsville, MN 5337-0499
Made in China
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