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)
TEST OR INSPECTION
GENERATOR SET FAILS TO SUPPLY POWER TO THE LOAD
Start generator set and check while running.
a. Using a multimeter, check generator set output voltage at load terminals L1, L2 and N (Figure 1-5).
If voltages are correct and all faults are reset, problem is not with the generator set.
b. Check for proper output voltage readings at power inverter / converter terminals L1, L2, N.
If voltages are incorrect, replace power inverter / converter (Para. 4-52).
c. Check load contactor relay K1 as follows:
Connect positive (+) probe of multimeter to K1 terminal 1(+).
Connect negative (-) probe to K1 terminal 2(-).
Is 24 VDC present?
If present, remove and replace relay K1 (Para. 4-24).
d. Hold CIRCUIT INTERRUPTER switch S5 in closed position. Is 24 VDC present now?
If present, replace relay K1 (Para. 4-24).
e. Close BATTLE SHORT switch and hold CIRCUIT INTERRUPTER switch in closed position.
Is 24 VDC present now? Does relay K1 now close?
If present, remove and replace power inverter / converter (Para. 4-52).
NO KW READING WHEN LOAD IS APPLIED
Disconnect P17 from A8 and perform the following tests:
a. Set multimeter to read resistance and check for 100 ohms at LOAD meter terminal.
If not present, remove and replace LOAD meter (Para. 4-17).
b. If 100 ohms is present at LOAD meter, check wiring between LOAD meter and P17.
Remove and replace damaged wiring as required.