Harbor Freight Tools 30304 Grinder User Manual


 
drops of oil at a time are necessary. Too much oil will collect inside the tool and be blown out
during the exhaust cycle. ONLY USE PNEUMATIC TOOL OIL. Do not use detergent oil or
additives as these lubricants will cause accelerated wear to the seals in the tool.
Dirt and water in the air supply are major causes of pneumatic tool wear. Use a filter/oiler for
better performance and longer life. The filter must have adequate flow capacity for the specific
application. Consult the manufacturer’s instructions for proper maintenance of your filter.
The connector on the tool must not hold pressure when the air supply is disconnected. If the
wrong fitting is used, the tool can remain charged with air after being disconnected and still be
able to drive a fastener. See Figure 5 for the recommended accessories and connection order.
Angle
Grinder
Figure 5 — Airline Oiler Assembly
Use
Step 1: Set the compressor’s pressure regulator to 90 PSI. Do not set the compressor’s outlet
regulator over 90 PSI.
Step 2: Connect the Angle Grinder to the air compressor’s hose. If leaking is detected, discon-
nect the air hose and repair before use.
Step 3: Identify the area you wish to grind. If possible, mark or scribe the area to ensure you
grind accurately.
Step 4: If possible, place the grinding material into a vise or otherwise secure the material so it
will not move.
Step 5: Grip the Angle Grinder with both hands. Make sure you are wearing eye protection and
protective gloves before using the Angle Grinder.
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