20
9.5.1 Portable Filter Pump Fails to Pump Oil?
Does
your filter have a
heater?
Turn heater "ON"
and run heater
for 15 minutes.
Does oil
flow?
Conduct normal
filter operations.
Can you
blow air through
Insert flexible oil return
hose into the filter pan
holster. Turn pump
motor "ON".
Does oil
flow?
Blockage is between
the bottom of the filter
pan and the flex hose
valve. Go to page 22.
Yes
No
Yes
No
No
it?
Yes
Yes
No
Insert flexible oil return
hose into the filter pan
holster. Turn pump
motor "ON".
Disconnect flexible oil
return hose. Make sure it
is cool before handling.
Try blowing air through it.
Submerge hose into hot water over
49°C (120°F). Keep both ends out
of the water. If water gets into the
hose, the water will cause severe
splattering when hose is
reconnected to the filter.
Once shortening has
softened, reconnect the
flexible oil return hose
to the filter.
Filter Pump fails
to pump oil.
