IAWARNINGJ Many troubleshooting procedures present hazards which can result In se-
vere persona/Injury
or
death. Only qualified service personnel with knowledge
of
fuels,
electricity, and machinery hazards should perlorm service procedures. Review safety
precautions on Inside cover page.
Trouble
Possible Cause
Engine Cranks
5.
Governor controller board not
But Does Not operating properly (electronic
Start governor sets)
Engine Starts
But Stops
When Start
Switch is
Released
Low Battery
Voltage
1.
Low oil pressure switch S2 not
opening due to:
a.
Low oil level.
b.
Open circuit between switch
and governor controller.
c. Defective low oil pressure
switch.
d. Low oil pressure.
2.
(Spec A sets only)
Ignition relay K5 contacts not
opening due to:
a.
K5 relay circuit open.
b.
Defective K5 relay.
3.
Output voltage from generator
not being supplied to control
due to:
a.
Open circuit in wiring between
generator and control.
b.
No output voltage from
generator.
4.
Defective control
PC
board A 1 .
1.
Weak
or
discharged battery
due to:
a.
Low electrolyte level in battery.
b.
Long periods
of
non-use.
c. Improperly wired battery.
2.
Load connected to battery while
set is turned off.
7·17
Corrective Action
5.
Verify that throttle goes wide open after1
second of cranking. If
so,
problem is not
governor controller. Check electrical
connections to actuator, governor control,
ignition. If board is defective, replace.
1 a. Check oil level and add oil if low.
1b. Check for continuity, correct
if
circuit is
open.
1
c.
Replace low oil pressure switch.
1 d. Refer to Section 6, Troubleshooting, for
procedures to follow.
2a. Check for continuity and correct
if
circuit is open.
2b. Replace K5 relay.
3a. Check for continuity and correct if
circuit is open.
3b. Refer to
Generator section for test
and service procedures.
4.
Replace PC board A
1.
1 a. Replenish electrolyte and recharge
battery.
1 b. Connect a separate battery charger to
bring battery up to full charge.
1
c.
Reconnect and check battery con-
nection.
2.
Turn off/disconnect load and recharge
battery.
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