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20
Engine & Pump
Troubleshooting
The troubleshooting information is provided
as a reference when your Fire Fighter is not
functioning correctly.
To ensure that you receive the best possible
service, it is recommended that you exhaust
all applicable troubleshooting solutions shown
prior to calling your dealer, or Goldacres, for
service advice.
Symptom
Possible Problem
Solution
Pump does not take
on water
Not enough priming water in the
housing
Add water
Engine speed too low
Increase throttle
Strainer plugged
Clean strainer
Suction hose damaged
Replace or repair hose & clamps
Air leak at suction port
Check that fittings are tight & sealed
Pump is located too high above
water line
Move pump closer to water
Debris collecting in pump housing Clean pump housing
Too much distance between
impeller and volute
Adjust clearance by adding shims or
replace impeller. Min. .010" -Max. .020
Water leaking out weep hole
between pump and engine
Check condition of mechanical seal
& gaskets, between pump end and
engine housing
Suction lift or discharge head too
high
Check hose/pipe installation
Pump takes in
water, little or no
discharge
Engine speed too low
Increase throttle speed
Suction strainer partially plugged Clean strainer
Impeller/volute worn
Adjust clearance by adding shims or
replace impeller/volute
Suction hose leaks
at inlet
Fittings/clamps are not sealed
properly
Tighten, replace or add clamp. (Keep
extra seals on pump)
Hose diameter is too large
Use smaller diameter hose or replace
hose
Discharge hose
does not stay on
coupling
Pressure too high
Check pressure, add additional clamp
Hose kinked or end blocked
Check hose
Impeller does not
turn, pump is hard
to start
Impeller jammed or blocked
Open pump cover and clean dirt and
debris from inside housing
Impeller and volute binding
Adjust clearance by removing shim
from behind impeller
Содержание FIRE FIGHTING 450L
Страница 1: ...Fire Fighter 450 800L Operator s Parts Manual GA8701239 REV0 JUL 2020 ...
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