Posted by Bob M on February 28, 2008 at 09:19:23 from (151.190.254.108):
In Reply to: Re: H Generator posted by neblinc on February 28, 2008 at 07:15:11:
Commutator truing needs to be done on a lathe. However based on your photo the commutator on yours looks pretty good. I'd be inclined to undercut it like Jim suggests, then polish it up a bit and use it "as is".
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A couple more things to check:
- Cracked/missing insulation on the interior wiring - especially the ungrounded brush holder leads. (Insulation here often tends to break apart when the end cover is removed and moved around.)
- The solder joints where the armature and field leads connect to their respective terminal posts.
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Also as Jim suggests go real easy on the oil in the commutator end bushing. Excess oil and the commutator/brushes to NOT get along well together!
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