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cat 257 (cmm) electric issues

Joseph p mcminn ยท 2018-10-13 22:24

04 machine only issues to date has been running gear--easy---now elect issues---running fine then all stop,after cking fuse foe key sw dead replaced it and started--lowered the boom and fuse popped--replaced again tried to start and it popped again twice----checked connections on loom from batt thru cab and on ecm plus the safetys--nothing----where do I start now ?

Replies2
  1. #1Joseph p mcminn2018-10-21 22:33

    Update---after checking all other electrical things--pulled starter had it on the test bench--pulling excessive amps--on 2nd check she smoked out--problem found

  2. #2Nige2018-10-27 05:19

    Glad to hear the problem is solved. In case you ever come across anything electrical in the future and you need the schematic, here it is.