ARMY TM 9-6115-639-13
AIR FORCE TO 35C2-3-386-51
MARINE CORPS TM 10155A-13/1
Table 4-4. Unit Level Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6.
ENGINE WILL NOT STOP WHEN EMERGENCY STOP SWITCH IS PRESSED
a. Check EMERGENCY STOP switch S19 as follows:
(1)
Connect positive (+) probe of multimeter to terminal board TB3, test point TP32.
(2)
Connect negative (-) probe to terminal board TB3, test point TP31.
(3)
Place START / RUN / STOP switch in RUN position.
(4)
Press EMERGENCY STOP switch.
(5)
Reading shall go from 24 VDC to zero VDC.
If it does not drop to zero VDC, replace EMERGENCY STOP switch (Para. 4-20).
b. If voltage does drop to zero VDC and engine still runs, governor fuel linkage is not moving to
the fuel shutoff position.
Visually check linkage and push lever to the off position.
7.
ENGINE STARTS, NO VOLTAGE READING
a. Set voltage select switch to 120V/240V and then check that power inverter / converter A8 voltage
reconnection cover is closed.
Close and latch cover to activate power converter.
b. Measure voltage at power inverter / converter A8 output terminal as follows:
(1)
Start generator set.
(2)
Connect multimeter to terminal L1-N.
(3)
Voltage reading shall be 120 VAC.
(4)
Connect multimeter to terminal L2-N.
(5)
Voltage reading shall be 120 VAC.
(6)
Connect multimeter to terminal L1-L2.
(7)
Voltage reading shall be 240 VAC if in 120/240 V connection configuration,
zero VAC if in 120 V connection configuration.
If voltages not correct, refer trouble to direct support level maintenance.
c. If voltages in b. are correct, check for voltage at VOLTAGE meter.
If voltage is present, remove and replace VOLTAGE meter (Para. 4-16).
4-18
Change 1