Harbor Freight Tools CENTRAL PENUMATIC 90234 - Manual (Page 10)

30-weight, non-detergent, compressor oil before each use. Running the Air
Compressor with no oil or low oil will cause damage to the equipment and
void the warranty. To check the level of oil, make sure the Air Compressor is
OFF. Then, observe the Oil Level Window (part #72). The level of oil should just
reach the horizontal line as shown on the Oil Level Window. If the level of oil is
below the horizontal line, remove the Oil Plug (part #78) and add new oil through
the Oil Plug hole.
Make sure not to overfill. The Air Compressor is designed to
hold approximately 25 fluid ounces of oil. Then screw in the Oil Plug, being
careful not to strip the threads.
(See Figure D.)
2. Turn the Air Outlet Valve (part #69) to its CLOSED position. Then connect a high
pressure air hose (not included) equipped with a
quick connector to the Air Outlet
Valve. If using a water filter and oiler in series with the Air Outlet Valve of the Air
Compressor, connect the other end of the air hose to the water filter and oiler and
connect the water filter and oiler to the air tool being used. If not using a water
filter and oiler, squirt several drops of air tool oil into the air intake plug of the air
tool. Then, connect the other end of the air hose directly from the Air Outlet
Valve of the Air Compressor to the air tool.
(See Figure E, and Figure F, next page.)
AIR
OUTLET
VALVE
(#69)
CONNECT
AIR HOSE HERE.
CLOSED POSITION
OPEN POSITION
FIGURE E
SKU 90234 PAGE 10 REV 04/04
OIL LEVEL
WINDOW
(#72)
PRESSURE RELIEF
VALVE
(#67)
OIL PLUG
(#78)
FIGURE D