Ce-niehoff-co N1313 Troubleshooting Guides Uživatelský manuál stáhnout pdf (Strana 6)

Page 6

TG16F

Section C: Advanced Troubleshooting (CONT’D)

Chart 2 – No 14 V Alternator Output – Test Circuit

Yes

Connect jumper from pin C on alternator-to-regulator 3-socket harness plug to 28 V B+ terminal

on alternator. Does test light glow brightly?

Alternator is defective.

Substitute a known good regulator. Run engine. Is regulator setpoint

voltage present?

Yes

Alternator is

defective.

Original regulator

was defective.





Before starting test:

1. Remove 14 V B+ cable at alternator. Insulate cable to prevent arcing.

2. Connect test light across 14V B+ terminal on alternator and B–terminal on alternator.



Figure 4 – Alternator-to-Regulator 3-Socket Harness Plug

SOCKET CONNECTIONS

A 14 V B+

B unused

C 14 V Control

1 2 3 4 5 6 7 8

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Ce-niehoff-co N1313 Troubleshooting Guides Uživatelský manuál Strana 6