TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
SYMPTOM
13.
Generator Produces High Voltage.
MALFUNCTION
DVR Malfunction.
CORRECTIVE ACTION
STEP 1.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
On EMCP set ENGINE CONTROL switch to START.
STEP 2.
Check VOLTAGE adjust potentiometer.
a. Adjust VOLTAGE potentiometer for lower voltage, as required.
b. If adjusting VAR will not lower voltage, test VAR by disconnecting VAR wires
from DVR and testing resistance of VAR circuit and VAR.
STEP 3.
Check voltage at load connection terminals.
a. Check programming of GSC and DVR for the position of the reconnection
b. Reprogram as required (WP 0085).
STEP 4.
Verify load connections. Reconfigure load connections for the desired voltage
STEP 5.
Check power factor of load. If not close to 1.0, excessive leading power factor
(capacitive load) can cause voltage to climb out of control. Reconfigure load.
a. If the problem is not resolved, on EMCP set ENGINE CONTROL switch to
OFF/RESET. Set Battery Disconnect Switch to OFF. Set DEAD CRANK
SWITCH to OFF.
b. Replace DVR (WP 0041 Guide) and retest system.
STEP 6.
Verify the problem has been resolved.
SYMPTOM
14.
Generator is Overheating.
MALFUNCTION
Excessive Generator Load.
CORRECTIVE ACTION
STEP 1.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
On EMCP set ENGINE CONTROL switch to START.
STEP 2.
Check ventilation screens. Unclog screens, as required.
STEP 3.
Check ambient temperature. Improve ventilation, or reduce load.
0011-16
