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ASSEMBLY INSTRUCTIONS
Engine Lubrication
This unit is shipped without oil. Before operating, oil must be added. See the engine manual for recommended
engine lubrication
Pump Lubrication
with compressor oil as instructed.
Some residual oil may still be in the pump leaving a thin coat on
the sight glass, however; there is not enough oil to operate the
unit. Synthetic oil has proven to provide superior lubrication and is
recommended for Speedaire air compressors. Use 10W30 100%
synthetic oil such as Mobil 1 (Stock No. 4F743). Single viscosity,
ISO100 (SAE 30) non-detergent compressor oil such as Mobil Rarus
(Stock No. 4ZF21), can also be used. Both are available at your local
Grainger branch. See Replacement Parts List for oil quantity. Add oil
only through the oil fill plug (See Figure 5). Fill to the center of the sight
gauge. Pouring oil into any other orifice will cause oil to leak and spray
out during operation.
NOTE: Use of petroleum based automotive engine oil will cause
carbon deposits to build up on the valves. This will shorten the life expectancy and will require more frequent
service to the valves. Do not use ATF hydraulic fluid, two-cycle oil or any oil treatment product. Do not use diester
synthetic oil.
OPERATING INSTRUCTIONS
1. Fill engine with oil and gasoline per instructions furnished with
engine.
2. Fill pump with oil and check oil sight glass to verify proper oil level.
3. Turn manual unloader lever up to a vertical position to allow the
compressor pump to run without compressing air. See Figure 6.
4. Move the choke lever to the CHOKE position, turn the fuel lever
ON, and turn the engine stop switch to the ON position.
5. Pull start grip lightly until resistance is felt, and then pull briskly.
6. As the engine warms up, gradually move the choke lever to the
open position. See gas engine manual for more details.
7. Run the compressor unloaded for approximately 30 minutes to
break in the pump.
8. After approximately 30 minutes, move the unloader lever down
to the loaded position. The compressor will begin to pump air into
the tank. See Figure 7.
When maximum tank pressure is reached, the compressor
automatically unloads, bringing the engine to idle. The engine remains
at idle until tank pressure falls to a preset level. The engine then
accelerates and the compressor pumps additional air into the tank.
8
THIS UNIT CONTAINS NO OIL. Before
operating compressor, fill pump crankcase
Before starting thecompressor, thoroughly read all component instruction
manuals, especially the engine manual.
A belt guard must be installed before operating the unit.
To ensure proper operation, unit must be on a level surface.
®
Oil drain
plug
Figure 5 - Lubrication
Figure 6 - Unloaded Position
Figure 7 - Loaded Position
Oil fill
plug
Sight
glass
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