Kohler TP 4.0 D, Руководство по обслуживанию

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5 39 690 01 Rev. -- KohlerPower.com
Troubleshooting
Condition Possible Cause Conclusion
Pump fails to prime. Pump not fi lled with liquid. Add liquid to pump through priming port.
Air leak at suction line connection. Add sealant to connection.
Worn suction connection gasket. Replace suction gasket.
Leaking suction line. Inspect, repair, or replace suction line.
Engine speed too low. Run engine at maximum speed.
Worn or broken volute or impeller. Replace parts as required.
Leaking/worn mechanical seal. Replace mechanical seal.
Clogged suction strainer/line. Clean strainer and suction line.
Suction lift too great (25 ft. max). Reduce lift.
Suction line too long. Reduce length to under 30 feet.
Pump is air locked. Vent pump discharge through priming port.
Pump primes too slowly. Insuf fi cient priming water. Add more water through pump fi ller cap.
Mechanical seal chipped or broken. Replace mechanical seal.
Check valve damaged. Replace check valve.
Suction hose damaged or strainer
clogged.
Replace hose.
Air leaks caused by O-ring damage. Clean strainer.
Engine rpm too low. Replace O-rings.
Lift head too high. Check rpm and reset throttle as required.
Insuf fi cient priming water. Lower lift head.
Reduced capacity or
discharge pressure.
Clogged strainer or lines. Clean strainer, suction and discharge
lines.
High friction loss in line. Remove kinks and elbows, reduce length.
Discharge head too high. Lower end of discharge line, remove
nozzles.
Engine speed too low. Increase engine speed.
Drop in engine output. Repair engine.
Clogged impeller. Remove clog.
Worn/damaged impeller or volute. Replace parts as required.
Pump will not work/engine
will not turn over.
Clogged pump. Remove clog between impeller and volute.
Pump parts rusted together. Disassemble pump, free parts.
Damaged impeller or volute. Replace volute or impeller.
Engine seized. Remove pump from engine, check engine
itself.
Pump will not work/engine
runs.
Impeller stripped/key sheared. Disassemble pump, replace parts/engine.
Pump impeller/volute clogged. Clean pump.
Insuf fi cient liquid supply. Increase liquid supply.
TROUBLESHOOTING GUIDE
When troubles occur, be sure to check simple causes which, at fi rst, may seem too obvious to be considered. For
example, a starting problem could be caused by an empty fuel tank.
Some general common causes of pump troubles are listed below. Use these to locate causing factors.