Northern Industrial Tools 157791 Grinder User Manual


 
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17. For your safety, maintenance should be performed regularly by a qualified
technician.
18. Use compressed air only — Never use combustible gases as a power source.
Note: Performance of the compressor (if powered by line voltage) may vary depending
on variations in local line voltage. Extension cord usage may also affect tool
performance.
Additional Safety Warnings
1. Repetitive motions or exposure to vibration may be harmful to your hands and arms.
2. When wearing gloves to operate the Air Die Grinder, make sure that the gloves do not
interfere with operating the trigger. Test your gloves with the trigger before attaching the
unit to an air source.
3. Never start the tool unless you have a firm grip with both hands and you are positioned at
your workpiece or area.
4. Before using the Air Die Grinder, know what is directly underneath the work area or
workpiece.
5. The Air Die Grinder can quickly penetrate material. If working directly on the ground, make
sure you are not directly above shallow cables, lines, or pipes.
6. Never point the tool or the air hose (not included) at anyone.
7. Keep your finger away from the trigger until you are ready to work.
Operation
Set Up
Fig. 1
1. You will need to prepare a 1/4" air connector (sold separately) to connect to the Air Inlet.
First, wrap the 1/4" air connector (not included) with pipe thread seal tape before
connecting to a Air Source Hose (not included).
2. Attach air hose to the Air Inlet on the Air Die Grinder. 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 each hour of continual use.
3. Set the air pressure on your compressor to 90 PSI. Do not exceed the recommended air
pressure of 90 PSI.
4. Check the air connection for leaks.
5. Turn off the compressor and disconnect the air source hose in preparation to load bits into
the Air Die Grinder.