ARMY TM 9-2815-256-24
AIR FORCE TO 38G1-96-2
MARINE CORPS TM 2815-24/5
Section V. ELECTRICAL SYSTEM MAINTENANCE
3-11. BATTERY CHARGING ALTERNATOR.
3-11.1. Battery Charging Alternator Test (Installed).
Check for battery voltage in alternator between terminals POS and ground, and EXC and ground with the master
switch (S1) in the PRIME & RUN POSITION. Note voltage.
Start and operate generator refer to TM 9-6115-645-10 and recheck voltage on alternator terminal POS and
ground for 28 " 2 VDC.
Prior to removing alternator, ensure negative battery lead is disconnected from battery to prevent
serious injury or death.
Tag and disconnect electrical leads from battery charging alternator.
Remove fan belts, refer to end item maintenance manual.
Remove capscrew (1, FIGURE 3-5), lockwasher (2), and washer (3); securing bracket (4) and battery charging
alternator (5). Discard lockwasher (2).
Support weight of battery charging alternator and remove capscrew (6), lockwasher (7), and nut (8); securing
bracket (4) and alternator (5). Remove bracket (4) and alternator (5). Discard lockwasher (7).
If necessary, remove capscrew (9), washer (19), and lockwasher (10) securing adjusting strap (11) to water pump
mounting hole. Remove adjusting strap. Discard lockwasher (10).
If necessary, remove two capscrews (12), washers (13), spacers (16), and nuts (14) securing mounting brackets
(15 and 17). Remove brackets (15 and 17).
If necessary, loosen and remove nuts (20) from terminals POS plus OUTPUT and SEN. Remove jumper wire
Remove terminal nuts (1, FIGURE 3-6), washers (2), bolts (3), back cover (4), and gasket (5) from rear housing
Remove nuts (6), washers (33), strap (7), and brush assembly (8) from voltage regulator (11).
Remove bolts (9), insulating washers (10), and voltage regulator (11) from rear housing (20).
Remove nut (12) and washer (13) and straighten strap (14).
Remove screws (15). Tag and remove stator (22) leads from diode-trio (17).