C15 and C18 Petroleum Engines Caterpillar

Alternator and Regulator

Usage:

C15 JDK

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Illustration 1	g01410490

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Illustration 2	g01410491

Voltage ... 24 V

Amperage ... 60 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

Minimum full load current at 5000 rpm ... 112 Amp

Minimum full load current at 2000 rpm ... 63 Amp

Output voltage ... 28 ± 1 V

(1) Final installation torque for the flange nut ... 102 ± 7 N·m (75 ± 5 lb ft)

(2) (B+) terminal. Final installation torque for the nut ... 6.2 ± 0.6 N·m (55 ± 5 lb in)

Note: Use a 7/16 ring terminal for (B+) terminal.

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

(4) (D+) terminal. Final installation torque for the nut ... 2.25 ± 0.25 N·m (20 ± 2 lb in)

(5) Voltage regulator assembly

Voltage setting ... No adjustment

Permissible voltage range ... 27 to 29 V

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