TM 9-6115-729-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
SYMPTOM
8.
Display of Power on GSC is Inaccurate.
MALFUNCTION
Setpoint Incorrect.
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to COOL DOWN/STOP. Set Battery
Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
STEP 2.
Verify setpoints per WP 0085. If voltage and current readings are accurate,
power will be accurate unless the polarity of one or more of the current
transformers is incorrect. Carefully check all connections (FO-3, sheet 2).
STEP 3.
If connections are correct, on EMCP set ENGINE CONTROL switch to
OFF/RESET. Set Battery Disconnect Switch to OFF. Set DEAD CRANK
SWITCH to OFF.
STEP 4.
Replace GSC (WP 0040).
STEP 5.
On EMCP set ENGINE CONTROL switch to COOL DOWN/STOP. Set Battery
Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
STEP 6.
Retest the system.
STEP 7.
Verify the problem has been resolved.
WARNING
High voltages may be present at the generator terminals when the unit is rotating. Tools,
equipment, clothing, and your body must be kept clear of rotating parts and electrical
connections. Special precautions must be taken during troubleshooting since protective covers
and safety devices may be removed or disabled to gain access and perform tests. Be careful.
Serious injury or death can result from these hazards.
SYMPTOM
9.
Generator Produces No Voltage or Voltage Builds Up Then Drops to Zero.
MALFUNCTION
DVR malfunction.
CORRECTIVE ACTION
STEP 1.
On EMCP set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
STEP 2.
Check fuse A1F4 and replace as required.
0011-11
