TOHATSU V20E - Page 79

65
TROUBLESHOOTING
Trouble
Cause
Vacuum pressure defective Air leaking Water suction failure Insufficient ,water discharge Floodlight, Gauge lamp, do not work
Action
Caused by suction Caused by Pump unit Caused by Playpipe Caused by Engine unit
Primer
Vacuum pipe loose
or cracking
● ●
Tighten securely a
clump of vacuum pipe or
replace.
Strainer cap loose
or “O” ring failure
● ●
Tighten securely or
replace.
V belt damaged or
worn
● ● Replace.
Vacuum pump rotor
shaft seizing
● Repair or replace.
Vane, Side plate
Worn or damaged
● ● Replace.
Water stop
Water stop valve
contamination
● ● ● Clean up.
Water stop valve
diaphragm failure
● ● ● Replace.
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１
２２
３３
４４
５５
６６
７７
８８
９
９
10
10
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