Northern Industrial Tools BLACK NICKEL 3" AIR CUTOFF TOOL - Manual (Page 4)

Page: 4 of 7
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.