This task covers:
a. Alternator Output Testing
d. Cleaning
b. Disassembly
e.
Assembly
c.
Static Testing
1.
Mount 500-amp test stand pivot arm to high-speed side and install mounting flange adapter on
pivot arm. Connect pulley driveshaft to high-speed head. Install pulley driveshaft on mounting
flange adapter.
2.
Position adapter mount (1) to bracket (9) on test stand.
3.
Install adapter mount (1) on bracket (9) with washer (3), screw (2), washer (3), and nut (8). Do not
tighten screw (2).
4.
Loosen locking handle (10) on bracket (9), raise bracket (9) to highest point, and tighten locking
handle (10).
5.
Install support plate (4) on adapter mount (1) with two washers (5), screws (6), washers (5), and
nuts (7). Do not tighten nuts (7).
6.
Install serpentine belt (11) on driver pulley (12) on alternator/generator/starter test stand.
7.
Position alternator (25) on adapter mount (1) and install serpentine belt (11) on pulley (15).
8.
Position two washers (22) between rear lower mount (24) on alternator (25) and adapter mount (1),
and install washer (21), screw (23), washer (21), and nut (20). Do not tighten nut (20).
9.
Align front lower mount holes (16) on alternator (25) and adapter mount (1) and install
washer (18), screw (19), washer (18), and nut (17). Do not tighten nut (17).
10.
Align top mount hole (26) on alternator (25) and adapter mount (1) and install two washers (13)
and screw (14).
11.
Tighten nuts (20) and (17) to 40 lb-ft (54 N•m).
INITIAL SETUP:
Applicable Models
M1113
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Automotive and repair: field
maintenance, basic (Appendix B, Item 6)
Puller (Appendix B, Item 54)
Test Equipment
Multimeter (Appendix B, Item 155)
Test stand (Appendix B, Item 56)
Materials/Parts
Silicone compound (Appendix B, Item 75)
RTV sealant (Appendix B, Item 74)
Locknut (Appendix G, Item 175.1)
Locknut (Appendix G, Item 175)
Eighteen locknuts (Appendix G, Item 175.2)
Twelve locknuts (Appendix G, Item 177)
Twelve lockwashers (Appendix G, Item 231.1)
Two lockwashers (Appendix G, Item 231)
Two seals (Appendix G, Item 424.1)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-387-24P
TM 9-4910-663-12
TM 9-4910-485-12
Equipment Condition
Alternator removed (para. 4-8.3).
General Safety Instructions
Always support alternator core and shaft assembly
during removal and installation.
Maintenance Level
Direct support
TM 9-2320-387-24-2
18-10.2
Change 1
18-3.1. 400-AMPERE DUAL VOLTAGE ALTERNATOR TESTING AND REPAIR
a. Alternator Output Testing
