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Operation
(Continued)
RECOMMENDED BREAK-IN PERIOD
The compressor should be run
continuously for one hour to allow
proper seating of the piston rings.
1. Open drain valve completely and run
the compressor for 60 minutes (See
Figure 4).
Figure 4 - Opening Drain Valve
2. Turn off the compressor and close
drain valve. The compressor is now
ready for use.
If the compressor is run under humid
conditions for short periods of time, the
humidity will condense in the crankcase
and cause the oil to look creamy. Oil
contaminated by condensed water will
not provide adequate lubrication and
must be changed immediately. Using
contaminated oil will damage bearings,
pistons, cylinders and rings and is not
covered under warranty. To avoid water
condensation in the oil, periodically
run the compressor with tank pressure
near 150 psi for two-stage compressors
or 120 psi for single stage compressors
by opening the drain valve or an air
valve connected to the tank or hose.
Run the pump for an hour at a time at
least once a week or more often if the
condensation reoccurs.
IMPORTANT: Change oil after first 50
hours of operation.
PRESSURE SWITCH, START - STOP
NOTE: This compressor has a maximum
operating pressure of 175 PSI for two-
stage compressors or 135 PSI for single
stage compressors. Do not alter pressure
settings on control components above
this limit.
The compressor unit starts and stops
based on preset pressure switch
settings. The pressure switch contains
an unloader which is a small valve that
vents air to allow the motor to start
easily (See Figure 5).
Unloader
To tank
pressure
Figure 5 - Pressure Switch
CRANKCASE BREATHER
During severe operating conditions or
initial start-up, some oil may accumulate
at the crankcase breather opening. This
is normal and will diminish as the pump
accumulates run time and the piston
rings become fully seated.
MOISTURE IN COMPRESSED AIR
Moisture in compressed air will form
into droplets as it comes from an air
compressor pump. When humidity
is high or when a compressor is in
continuous use for an extended period
of time, this moisture will collect in
the tank. When using a paint spray
or sandblast gun, this water will be
carried from the tank through the
hose, and out of the gun as droplets
mixed with the spray material.
IMPORTANT: This condensation
will cause water spots in a paint job,
especially when spraying other than
water based paints. If sandblasting, it
will cause the sand to cake and clog
the gun, rendering it ineffective. A
filter in the air line, located as near to
the gun as possible, will help eliminate
this moisture.
5
Maintenance
Disconnect, tag and lock
out power source then
release all pressure from
the system before attempting to
install, service, relocate or perform
any maintenance.
In order to maintain efficient operation
of the compressor system, check the
air filter and oil level before each use.
The ASME safety valve should also be
checked daily (See Figure 6). Pull ring
on safety valve and allow the ring to
snap back to normal position. This valve
automatically releases air if the tank
pressure exceeds the preset maximum.
If valve does not automatically shut at
any pressure below the units max rating
the valve should be replaced. If air leaks
after the ring has been released, or the
valve is stuck and cannot be actuated by
the ring, the ASME safety valve must be
replaced.
Do not attempt to
tamper with the
ASME safety valve.
Figure 6
TANK
Never attempt to repair
or modify a tank!
Welding, drilling or any
other modification will weaken
the tank resulting in damage from
rupture or explosion. Always
replace worn, cracked or damaged
tanks.
Drain liquid from
tank daily.
The tank should be carefully inspected
at a minimum of once a year. Look
for cracks forming near the welds. If a
crack is detected, remove pressure from
tank immediately and replace.
COMPRESSOR LUBRICATION
See Operation. Add oil as required.
The oil should be changed every three
months or after every 500 hours of
operation; whichever comes first.
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HS5180
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