C.E. Niehoff & Co. C619/C630/N1222/N1223/A1-607/A1-608 Troubleshooting Guides - Manual (Page 4)

Page 4 TG8B
Section C: Advanced Troubleshooting
Yes No
For “no voltage output” condition: • with energize switch, go to Chart 2, page 5.
• with ignition switch, go to Chart 3, page 6.
Is there a battery isolator in the system?
Chart 1 – System Circuit
Install temporary jumper between one battery terminal and alternator
terminal on isolator. Use minimum 12 AWG wire.
Do not operate charging system more than two
minutes with jumper installed. Charging system volt-
age will be abnormally high and damage other components.
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