Troubleshooting - Wacker Neuson PT2A Manual Del Operador

PT2A / PT3A / PT4A
9

Troubleshooting

Problem / Symptom
Engine does not start.
Engine is hard to start.
Impeller does not turn
and pump is hard to
start.
Engine starts but
pump does not take in
water.
Pump takes in water
but discharges little or
no water.
Suction hose leaks at
inlet.
Discharge hose does
not stay on coupling.
Engine stops by itself.
wc_tx004597en.fm
Reason
■ No fuel in tank
■ Old fuel
■ Engine oil pressure/oil level low
■ Impeller rubbing on front cover
■ Dirt or debris inside pump housing
blocking movement of impeller
■ Impeller jammed or blocked
■ Impeller rubbing on front cover
■ Pump housing not filled with water
■ Suction strainer partially clogged
■ Suction hose damaged
■ Air leak at suction port
■ Pump too high above water line
■ Engine speed too low
■ Debris collecting in pump housing
■ Too much clearance between
impeller and front cover
■ Impeller worn
■ Discharge hose kinked or blocked
■ Engine speed too low
■ Clamps not sealed properly
■ Suction hose diameter too large
■ Suction hose damaged
■ Pressure is too high for clamps
being used
■ Discharge hose kinked or blocked
■ No fuel in tank
■ Engine oil pressure/oil level low
■
Engine too hot
39
Troubleshooting
Remedy
■ Add fuel.
■ Drain fuel tank, change fuel filter,
and fill with fresh fuel.
■ Add engine oil.
■ Inspect impeller clearance.
■ Clean or remove debris.
■ Remove pump housing cover and
clean or remove debris.
■ Inspect impeller clearance.
■ Prime the pump.
■ Clean or remove debris.
■ Repair or replace suction hose.
■ Repair air leak.
■ Move pump closer to water.
■ Run pump at maximum operating
speed.
■ Clean or remove debris.
■ Inspect impeller clearance.
■ Inspect impeller clearance.
■ Unkink discharge hose or remove
obstruction.
■ Run pump at maximum operating
speed.
■ Tighten, replace, or add clamps.
■ Use a hose with a smaller
diameter.
■ Replace suction hose.
■ Add another clamp.
■ Unkink discharge hose or remove
obstruction.
■ Add fuel.
■ Add engine oil.
■
Allow the engine to cool. Check
and add coolant if necessary.