Cause
Corrective Action
There is not enough oil in the oil tank,
and
air
has been sucked into the oil line
creating an air lock in the pressurized
line. This can cause premature failure of
the main check valve, the exhaust check
valve or the intake check valve.
Take out the bolts on the valve block
plate
Slowly raise it up, and secure it so that
you can safely work on the unit.
Start the motor and pump to have oil
circulation in the system.
Carefully observing the check valves for
leakage.
If any oil is leaking from any check
valve or valves, then it or they must be
replaced.
Oil leaking at the piston cap
Valve Block Plate
Overflow
Low Pressure Intake
Check Valve
Connection Pipe
Bearing
Exhaust Check Valve
High Pressure Intake
Check Valve
Main Check Valve
Low/High Pressure Check Valve
High Pressure Intake Check Valve
Low Pressure Intake Check Valve
