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pitted commutator

3767 Views 2 Replies 3 Participants Last post by  major
Hi pple

My friand has a gulfcart in wich the motor's commutator become pitted.
A new motor was installed and the new motor's commutator also became pitted.
Could any one advise on possible cause.

Thank U.
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Is this an old golf cart that has a stepped speed controller? Most newer golf cars have s smooth transistor speed controller with fixed current limits. The old stepped controllers didn't have a fixed current limit and to much right foot means to many amps. Some purple brush pig tails and commutator pitting would be a good sign of to much current.
 
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