generator polarizing

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7414
Posts: 14
Joined: Tue May 01, 2018 7:00 am
Name: marinus hamer
Location: Livonia, NY
Aircraft Type: C140
Occupation-Interests: retired airline pilot
Contact:

generator polarizing

Post by 7414 »

hello,
recently my delco-remy generator had new brushes installed but there are still charging issues so I would like to start with the basics by polarizing the generator.
youtube videos give contradicting information on how to do this at the voltage regulator.
one tells me to briefly connect the battery terminal with the field terminal while another want to use armature terminal.
the other way is to to use the batt. term. and flash the generator directly.
any insights would be appreciated.
Marinus Hamer
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6643
Posts: 2708
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:

Re: generator polarizing

Post by 6643 »

Master switch must be on. Everything else should be off. Momentarily connect a jumper from the "BAT" terminal to the "GEN" terminal. Two or three seconds is long enough.
7414
Posts: 14
Joined: Tue May 01, 2018 7:00 am
Name: marinus hamer
Location: Livonia, NY
Aircraft Type: C140
Occupation-Interests: retired airline pilot
Contact:

Re: generator polarizing

Post by 7414 »

thank you, John.
probably would have forgotten the master switch.
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