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Home >> Plymouth >> 1978 >> Arrow Base, Automatic Trans >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternators >> Description >> Charging Battery

Charging Battery

If a "Fast Charger" is used, both battery cables must be removed from battery. Do not use a fast charger to provide starting voltage. 

100 AMPERE ALTERNATOR GROUND CIRCUIT 

CAUTION: After installing 100 amp alternator, ensure ground strap between alternator case and engine is properly installed. If this ground strap is not in place, alternator mounting rubber isolation bushings will be burned-up.
SPECIFICATIONS

Alternator Part No. (Tag Color) Volts (1)(2)Rated Amp. Output
3874695 (Bronze) 15 41
3874696 (Natural) 15 50
3874776 (Natural) 15 50
3874698 (Yellow) 15 60
3874777 (Yellow) 15 60
3874697 (Brown) 15 65
3874701 (Brown) 15 65
4091460 (Yellow) 13 100
(1) At 900 engine RPM (100 Amp. Alt.); 1250 RPM all others.
(2) Measured at alternator.

Rotation  - Clockwise at drive end.

Field Coil Draw  - 4.75-6.0 amps. (100 amp.); 4.5-6.5 amps. (all others); at 12 volts while turning rotor manually.

Capacitor Capacity  -.50 mfd. ± 20%.