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Chapter 6 Cooling Water System
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3,4JH3(B)(C)E
Troubleshooting
Refer to the following countermeasures for difficulties that arise.
Problem
Cause
1. Pump does not turn
Faulty wiring
Faulty battery
Faulty starter switch
Faulty pump
2. Pump turns but does not draw up
Draws up air.
water.
Low voltage in battery.
The distance between the pump
and the surface of the water is
too great.
The pump is too high.
Pump intake is weak.
3. Pump turns, but the amount of
Clogged stra"iner
discharge is
low.
Hose is broken or damaged.
4. Water leakage from pump
Water leakage from packing
Faulty pump seal
5. Pump draws up bilge, but motor
Faulty diaphragm switch
stops when hand is removed from
starter switch.
Damaged diaphragm switch
6. Motor does not stop when there.
Clogged strainer or hose
is no bilge water left
Damaged diaphragm switch
6-18
Countermeasure
Check the wiring between the motor and battery.
Check to see if the specific gravity of the battery
fluid is greater than 1.25.
Recharge or replace the battery.
Consult your local dealer.
Consult your local dealer.
Check hose connections.
Retighten pump screws.
Check to see if the specific gravity of the battery
fluid is greater than 1.25.
Recharge or replace the battery.
Lower the pump. (Position the pump so that it is closer
to the surface of the water.)
Lower the pump. (Position the pump so that it is 50~
70cm above the bottom of the boa!.)
ff intake is still faulty after priming, consult your local
dealer.
Clean strainer.
Check for damage and repair. If incorrect hose has
been used, replace with the regulation type of hose.
Retighten pump screws.
Consult your local dealer.
Check for loose wiring in diaphragm switch and correct.
Consult your local dealer.
Clean strainer or hose.
Check for continuity of diaphragm switch terminal.
Consult your local dealer if there is continuity.
Printed in Japan
HINSHI-1-18009
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Troubleshooting
