G3408 and G3412 Engines Caterpillar


Alternator and Regulator

Usage:

G3408 6NB

9G-4574 Alternator




Illustration 1g00278633



Illustration 2g00278634

Voltage ... 24 V

Amperage ... 35 Amp

Note: Load the battery with a carbon pile 4C-4911 Battery Load Tester in order to get the maximum alternator output.

Polarity ... Negative ground

Rotation ... Either direction

The minimum full load current at 5000 rpm is the following value. ... 35.6 Amp

The minimum full load current at 1500 rpm is the following value. ... 15.8 Amp

Output voltage ... 28 ± 1 V

(1) Tighten the shaft nut to the following torque. ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Tighten the positive terminal nut to the following torque. ... 13.5 ± 1.3 N·m (119 ± 12 lb in)

(3) Tighten the ground terminal nut to the following torque. ... 4.4 ± 1.0 N·m (40 ± 8 lb in)

(4) Regulator

Voltage setting ... No adjustment

Permissible voltage range ... 27 to 29 V

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