4. Troubleshooting
4-5
4.2.4
Engine will not turn to meet rated revolutions
※
For the detailed countermeasures, refer to “Service manual” published by engine manufacturer.
Check whether it is
possible to adjust it by
correcting full load
revolutions
Faulty adjustment
Re-adjust
Check if engine controller
(ECU) functions well
Faulty engine controller
(ECU) or faulty wire
connection
Replace engine controller
(ECU) or repair wire
connection
Check emergency
controller output voltage
Abnormality engine
Repair the trouble and get
rid of the cause
Check how fuel
transported or if any air
mixed
Fuel feed pump clogging
Faulty fuel pipes
Clean strainer
Repair pipes
Bleed air
Filter clogging
Clean or replace
Check adjustment of
pressure regulator
Clogging is
large
Normal
Normal
Faulty
Normal
Normal
Faulty
Faulty adjustment of
pressure
Re-adjust pressure
Adjustment
Faulty adjustment
Check air filter
Filter element clogging
Replace it
Check fuel filter and fuel
pre-filter
Clogging is
large
Check pressure sensor
output voltage
Faulty pressure sensor
More than
DC0.5V
Replace it
Normal
DC0.5V
Input wire connection or
emergency controller fails
Less than
DC3.0V
Repair input wire
connection or replace
emergency controller
Normal
DC3.0V
B
C
D
※
Adjustment
Faulty adjustment
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Summary of Contents for PDS185S-6E1
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