C11 and C13 Engines Caterpillar

Illustration 1	g01139237

Illustration 2	g01139238

Voltage ... 24 V

Amperage ... 95 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 ... Clockwise

The minimum full load current at 5000 rpm is the following value. ... 95 Amp

The minimum full load current at 2000 rpm is the following value. ... 28 Amp

Output voltage ... 28.0 ± 1.0 V

(1) Tighten the shaft nut to the following torque. ... 127 ± 10 N·m (95 ± 7 lb ft)

(2) (B-) terminal. Tighten the screw to the following torque. ... 4.4 ± 1.0 N·m (39 ± 9 lb in)

(3) ( R) terminal. The peak voltage for terminal (R) must not be less than the output voltage for terminal (B+).

(4) (B+) terminal. Tighten the nut to the following torque. ... 18.2 ± 2.4 N·m (13 ± 2 lb ft)