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Maintenance
Lubrication
The air valve is designed to operate unlubricated,
however if lubrication is desired, every 500 hours of
operation (or monthly) remove the hose from the pump
air inlet and add two drops of machine oil to the air
inlet.
CAUTION
Do not over-lubricate the pump. Oil is exhausted
through the muffler, which could contaminate your
fluid supply or other equipment. Excessive lubrica-
tion can also cause the pump to malfunction.
Flushing and Storage
Flush the pump often enough to prevent the fluid you
are pumping from drying or freezing in the pump and
damaging it. Always flush the pump and follow the
Pressure Relief Procedure Warning
on page 9
before storing it for any length of time. Use a compat-
ible solvent.
Tightening Threaded Connections
Before each use, check all hoses for wear or damage,
and replace as necessary. Check to be sure all
threaded connections are tight and leak-free. Check
and retorque all threaded connections at least every
two months. Retorque the fluid cover screws first,
followed by the manifold screws.
The recommended frequency for retorquing of fasten-
ers varies with pump usage; a general guideline is to
retorque fasteners every two months.
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based
on the pump’s service history. This is especially impor-
tant for prevention of spills or leakage due to dia-
phragm failure.
