DAISHIN PTD Series Manuel - Page 13

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8.

EASY TROUBLESHOOTING

1. PUMP DOES NOT RUN
 Stucking of impeller
(Disassemble and clean.)
2. PUMPING VOLUME IS LOW
 Air suction at suction side.
(Check piping at suction side.)
 Engine output drop-off.
(Consult your nearest dealer.)
 Breakage of mechanical seal
(Consult your nearest dealer.)
 Too high suction lift (Lower the height.)
 Suction hose is too long or too thin.
(Use a thick hose with a minimum
length.)
 Leakage of water from the water
passage. (Stop the leaking.)
 Clogging of foreign substances on the
impeller.
(Disassemble and clean.)
 Wear out of the impeller.
 Strainer is clogged. (Clean it.)
 Engine speed is too low.
(Consult your nearest dealer.)
3. PUMP DOES NOT
SELFPRIME.
 Air suction at suction side.
(Check piping at suction side.)
 Insufficient amount of priming water
inside the pump casing
(Prime sufficiently.)
 Loose tightening of the drain plugs.
(Tighten the plugs firmly.)
 Engine speed is too low.
(Consult your nearest dealer.)
 Air suction from mechanical seal.
(Consult your nearest dealer.)
4. WHEN ENGINE DOES NOT
START:
 Perform the following checkup before you
take the pump to your FHG dealer.
 If you still have trouble after completing
the checkup, take the pump to your
nearest FHG dealer.
Are foreign substances contained in
the fuel?
 Drain all the fuel from the fuel tank and
check that no foreign substances and/or
water are contained in the fuel.
 Clean the fuel filter.
Is there enough compression?
If the compression is not sufficient, check
the mounting of the injection nozzle.
If the mounting nuts are loose, tighten
them.