delco remy 6 volt generator

donna48 · Aug 28, 2015

i have a 1939 allis b it has a delco remy model 935b 6 volt generator. my question is how to test armature,and what resistance would the armature read between poles.
im getting 0 ohms across each pole,or at 180 degrees .
any help appreciated
steve

Bob · Aug 28, 2015

Since the armature is would with a continuous series of coils of fairly heavy wire, the a resistance measurement between adjacent commutator bars or bars 180º apart will be very low, I don't have a reasonable estimate, though.

However, resistance between the commutator bars and the shaft or laminations should be "infinite".

Armatures are commonly tested with a "growler". Any chance you have access to one?
Using a growler

donna48 · Aug 28, 2015

(quoted from post at 18:32:09 08/28/15) Since the armature is would with a continuous series of coils of fairly heavy wire, the a resistance measurement between adjacent commutator bars or bars 180º apart will be very low, I don't have a reasonable estimate, though.

However, resistance between the commutator bars and the shaft or laminations should be "infinite".

Armatures are commonly tested with a "growler". Any chance you have access to one?
Using a growler

donna48 · Aug 28, 2015

no however we do have a electric motor shop in prescott
may be they do!
thanks steve]

John T · Sep 2, 2015

Armature resistance is VERY LOW. Fields may be in the range of 2 to 4 ohms. For a procedure to test the charging system see my link below.

John T
John Ts Charging Troubleshooting

delco remy 6 volt generator

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