Caterpillar Alternator To Battery Wiring Diagram. Put the multimeter positive lead on the b terminal of the alternator. Download cat 420d alternator wiring diagram.
Da plug connects to the coil terminal through the ballast resistor if there is one. Charging indicator item 1. These directions will be easy to grasp and apply.
It is meant to aid all of the average person in building a correct system.
A wiring diagram is a streamlined standard pictorial depiction of an electrical circuit. Put the multimeter positive lead on the b terminal of the alternator. Battery inspect the battery for the defects shown in this figure. Once the alternator is disconnected from the engine compare its mounting points to those on your new balmar alternator.