PRECAUTIONARY PROCEDURE

TM 10-3930-644-14&P

D. PRECAUTIONARY PROCEDURE

CAUTION

efer to wiring diagrams for correct

The alternator is designed for use on only one polarity

connections to alternator. Battery

system; therefore, the following precautions must be

negative (-) terminal must be

observed when working on the charging circuit. Failure

connected to ground.

to heed these precautions will result in serious damage

to the electrical equipment.

E. INSTALLATION

1. When Installing alternator be absolutely sure the

1. Carefully position the alternator mounting flange

"BAT" terminal is connected to the ammeter.

on mounting bracket and install pivot bolt and

Battery positive (+) terminal must be connected

adjusting brace capscrew.

to the ammeter and the negative {-) terminal to

ground.

2. Hold alternator close enough to engine to

engage fan belt on alternator pulley, then, using

2. When connecting a booster battery, be sure to

pry-bar as shown. in Figure 3-2, tighten pivot

connect the negative battery terminals together

bolt and adjusting brace capscrew for 3/8" belt

and the positive battery terminals together.

deflection with about 10 pounds of applied force.

3. When connecting a charger to the battery, be

3. Connect previously removed wiring as labeled.

sure to connect the charger positive lead to the

battery positive lead, the charger negative lead

CAUTION

to the battery negative lead.

Be certain that connections

are

properly made and secured.

4. Be absolutely sure all connections in the circuit

are secure, as the alternator must never be

F. DISASSEMBLY, REPAIR, REASSEMBLY

operated with an open circuit.

Refer to REPAIR MANUAL for proper procedures.

5. Never ground or short across any of the

alternator terminals.

M-146-1

2-26