Maintenance - Graco Husky Sanitary Series Instructions-Parts List Manual

Maintenance

Lubrication
The air valve is designed to operate unlubricated, how-
ever if lubrication is desired, every 500 hours of opera-
tion (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 and could contaminate your fluid
supply or other equipment. Excessive lubrication can
also cause the pump to malfunction.
Flushing
WARNING
To reduce the risk of serious injury, whenever you are
instructed to relieve pressure, always follow the Pres-
sure Relief Procedure on page 11.
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 cleaning solution.
Always flush the pump and relieve the pressure before
storing it for any length of time.
309528L
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 fasteners.
Tighten or retorque as necessary. Although pump use
varies, a general guideline is to retorque fasteners every
two months. See Torque Sequence, page 24-25.
Preventive Maintenance Schedule
Establish a preventive maintenance schedule, based on
the pump's service history. This is especially important
for prevention of spills or leakage due to diaphragm
failure.
Maintenance
13