C18 Marine and Marine Generator Set Engines Caterpillar

Illustration 1	g01249721

Illustration 2	g01249723

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

Minimum full load current at 5000 rpm ... 96 Amp

Minimum full load current at 1500 rpm ... 42 Amp

Output voltage ... 14.0 ± 0.5 V

(1) Torque for the locknut ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) Torque for output terminal nuts ... 7.1 ± 0.8 N·m (65 ± 7 lb in)

(3) 3E-5451 Voltage Regulator As

Voltage setting ... No adjustment

Permissible voltage range ... 13.5 to 14.5 V

Voltage rating ... 24 V