3034 Marine Engine Caterpillar


Alternator and Regulator

Usage:

3034 CPP



Illustration 1g00898168

Typical example

(1) Tighten the pulley nut to the following torque.

177-7434 Alternator ... 45 to 55 N·m (33 to 40 lb ft)
206-6447 Alternator ... 45 to 55 N·m (33 to 40 lb ft)
210-7689 Alternator ... 50 to 70 N·m (37 to 52 lb ft)

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

Rated voltage ... 12 volts

Output voltage ... 14.0 ± 0.5 volts

Rotation ... Clockwise

Note: Ensure that the alternator pulley is aligned to the crankshaft pulley within ± 2.40 mm (3/32 inch).

177-7434 Alternator




Illustration 2g00901897

Polarity ... Alternator case ground

Minimum full load current at 5000 rpm ... 48.6 amperes

Minimum full load current at 1500 rpm ... 20.7 amperes

(1) Tighten terminal nut "W" to the following torque. ... 2 to 2.5 N·m (17 to 22 lb in)

(2) Tighten terminal nut "D+" to the following torque. ... 1.45 to 1.95 N·m (13 to 17 lb in)

(3) Tighten terminal nut "B+" to the following torque. ... 2.6 to 4.4 N·m (23 to 39 lb in)

206-6447 Alternator




Illustration 3g00901895

Polarity ... Insulated ground

Minimum full load current at 5000 rpm ... 68 amperes

Minimum full load current at 1500 rpm ... 30 amperes

(1) "-" Terminal

(2) "B+" Terminal

(3) "W" Terminal

210-7689 Alternator




Illustration 4g00901896

Polarity ... Insulated ground

Minimum full load current at 5000 rpm ... 88 amperes

Minimum full load current at 2000 rpm ... 52 amperes

Minimum full load current at 1500 rpm ... 10 amperes

(1) "W" Terminal

(2) "B+" Terminal

(3) "-" Terminal

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