T.O. 35C2-3-442-2
P-9-TM-457-35
TM 5-6115-457-34
TM-07464A-35
Table 2-3. Troubleshooting (Continued)
CORRECTIVE ACTION
PROBABLE CAUSE
MALFUNCTION
GENERATOR SET (Continued)
a. Test and repair if defec-
a. Defective control box
3. Engine shuts down
tive (paragraph 6-14 thru
relay assembly.
after positioning
6-22).
start-stop-run
b. Test relay
b. Defective over voltage
switch to RUN.
relay K2.
c. Defective mode I or
c. Test relay box (para-
mode II relay box.
graph 6-86 or 6-105).
a. Defective or improper-
4. Precise governor
a. Repair or adjust switch
ly adjusted speed
fai1s to take over
switch (S9-2).
a f t e r starting.
Engine speed in-
b. Repair or replace wiring
creases and remains
b. 120 vac not supplied to
(paragraph 6-243).
at 2250 rpm (precise
control unit receptacle
P1 pins A and B.
generator sets).
c. Defective governor
c. Repair linkage (para-
linkage.
graph 8-135 or 8-140).
d. Defective governor
d. Test and repair if defec-
actuator.
tive (paragraph 8-110 thru
8-115).
e. Test and repair if de fee-
e. Defective governor con-
trol unit.
tive (paragraph 6-202).
f. Defective hydraulic
f. Test and replace if defec-
pump.
tive (paragraph 8-94 thru
8-98) .
5. During operation,
a. Defective governor
a. Test and repair if defec-
engine fuel throttle
actuator.
tive (paragraph 8-110 thru
goes to minimum
8-115).
fuel position (precise
generator sets).
b. Defective governor con-
b. Test and repair if defec-
trol unit.
tive (paragraph 6-202).
Change 3
2-34
