Gen Lights Draining Batteries

[tgtaylor64]

My friend has a M1031 that has the problem of draining it's batteries after only a few days. He recently noticed (after dark) that with the key out, both GEN 1 and GEN 2 lights were glowing dimly. What wiring gremlin would cause this issue? The truck is in military stock configuration and direct from Redstone Arsenal. Thanks!

 

[Warthog]

Alternators need to be rebuilt.

Diodes in the tri-diode or the rectifier are mor than likely bad. While he is in there might as well rebuild all of it. The TM 9-2320-289-34 has a section for the rebuild

 

[rtk]

YUP , that's the fix . Time to get up close and personnel with your alternators . More of a problem getting them off then rebuilding the unit IMHO . Parts are readily available . Nice weekend project . Check the site for alternator rebuild , you should find lots of how to info , good luck , Bob k