14
TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
ACTION
The pump unit does not work.
Contaminated valve
seats/worn seals
Replace seals.
The pump unit produces no
pressure.
Air in the system.
Open the relief valve and remove
the dipstick.
The pump unit feels unstable
under load.
Air in the system.
Pump the handle a few times and
close the relief valve.
The pump unit does not go back
fully.
Air in the system.
Replace the dipstick.
The pump unit produces no
pressure.
Oil level too high or too low.
Check the oil level with the
dipstick. Adjust to the correct oil
level.
The pump unit feels unstable
under load.
Worn pump seal.
Replace the pump seal.
The pump unit does not go back
fully.
Air in the system.
Bleed by pulling out the dipstick.
