15
Possible cause
: Cylinder may be flooded with
excessive oil due to defective solenoid valve (stuck
in open position).
Remedy
: Turn pump over by hand to remove ex-
cessive oil. Check solenoid valve, clean or replace
Possible cause
: Oil temperature too low, or
viscosity too high.
Remedy
: Warm up oil, use ISO100 oil.
TROUBLE
Possible cause
: Pump turns backwards for
several revolutions when motor turned off.
Remedy
: Close gas ballast valve before shutting
off pump. This prevents atmospheric air from
reversing direction of pump piston when power is
off.
TROUBLE
Pump smokes at the exhaust side or expels oil
droplets from the exhaust
Possible cause
: No exhaust filter in place
Remedy
: Install exhaust filter
Possible cause
: The exhaust filter is not
properly seated with the o-ring in filter base or filter
material is cracked.
Remedy:
Exhaust filter not properly seated with o-
ring, replace if necessary. Check element and se-
cure
Possible cause
: The exhaust filter is clogged with
foreign particles.
Remedy
: Replace the exhaust filter.
TROUBLE
Pump runs hot
Possible cause
: Water temperature or flow
inadequate
Remedy
: Check water flow to pump. Increase
flow is necessary. Check that the water jacket is
not clogged with mineral deposits or scale. Clean
is necessary
Possible cause
: No oil flow to pump.
Remedy:
Check solenoid valve-clean or replace
as necessary.
