819.4470
11
Maintenance
Lubrication
The air valve is designed to operate unlubricated, however if
lubrication is desired, every 500 hours of operation (or month-
ly) 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 lubrication can also cause the pump
to malfunction.
Flushing and Storage
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure
Relief Procedure
on page 10.
Warning
Flush the pump often enough to prevent the fluid you are
pumping from drying or freezing in the pump and damaging it.
Use a compatible solvent.
Always flush the pump and relieve the pressure before stor-
ing it for any length of time.
Tightening Threaded Connections
Before each use, check all hoses for wear or damage, and
replace as necessary. Check to be sure all threaded connec-
tions are tight and leak-free. Check and retorque all threaded
connections at least once every two months. Retorque the
fluid covers first, then the manifold screws.
The recommended frequency for retorquing of fasteners
varies with pump usage, a general guideline is to retorque
every two months.
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based on the
pump’s service history. This is especially important for pre-
vention of spills or leakage due to diaphragm failure.
