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Maintenance
WARNING:
Disconnect, tag, and lock out power source,
and then release all pressure from the system before
attempting to install, service, relocate, or perform any
maintenance.
All repairs should be performed by an authorized service
representative.
1
Checking and changing the oil
Maintain proper oil level by checking the oil sight glass (1) daily.
Change the oil in the pump every 3 months. Use the following
procedure to change (or add) oil. Remove the oil drain plug from
the base of the pump and install the oil drain extension. Some
models include an oil drain extension and cap (found with the
owner’s manual). Install the oil drain extension and cap before
adding oil to the pump. To avoid oil leaks, apply pipe thread
sealant or thread tape to the threads on each end of the oil drain
extension. Screw the cap onto one end of the extension. Drain
extension part number is ST083800AV and drain extension cap
part number is ST150100AV.
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Run the compressor for ten minutes to warm up the oil if the
unit has not been in use for an extended period of time.
□
Turn the compressor off and disconnect the compressor from
the power source.
□
Position a pan under the pump drain plug (2) to catch the oil.
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Remove the pump drain plug (2) and allow the oil to collect in
the pan.
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Reinsert the oil drain plug. Remove the oil fill plug (3) from the
pump. Pour new, unused oil into the pump. Do not overfill.
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Reinsert the oil fill plug (3) into position. Return power to the
compressor for use.
2
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2
Checking the ASME safety valve
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Run the air compressor until it reaches cut-out pressure.
□
Turn the compressor off and disconnect the compressor from
the power source.
□
Put on safety glasses. Protect yourself from fast moving air.
□
Pull on the ring of the ASME safety valve (1). This releases
pressure from the tank. The safety valve should automatically
close at approximately 40 - 50 psi.
If the safety valve does not allow air to be released when you
pull on the ring, or if it does not close automatically, it MUST be
replaced.
3
Draining the tank of moisture
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Turn the compressor off and disconnect it from the
power source.
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Release the pressure from the compressor by pulling on the
ASME safety valve. The ASME safety valve should close at
approximately 40 - 50 psi.
□
Step on the drain pedal (1) on the tank foot bracket. Remaining
air pressure will assist in removing moisture from the tank.
