TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 700 of 1015
TM 9-2320-272-24-1
3-125. BATTERY MAINTENANCE
THIS TASK COVERS:
a. Removal
b. Inspection and Cleaning
c. Installation
APPLICABLE MODELS
All
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
MATERIALS/PARTS
Ten lockwashers (Appendix D, Item 354)
Rags (Appendix C, Item 58)
Sodium bicarbonate (Appendix C, Item 69)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
TM 9-6140-200-14
EQUIPMENT CONDITION
l
Parking brake set (TM 9-2320-272-10).
l
Battery ground cables disconnected (para. 3-126).
GENERAL SAFETY INSTRUCTIONS
Remove all jewelry before performing procedure.
WARNING
Remove all jewelry when working on electrical circuits. Jewelry
coming in contact with electrical circuits may produce a short
circuit, causing extreme heat, explosions, and fling particles of
metal. Failure to comply may result in injury to personnel.
1.
Loosen six nuts (4) and screws (5) on terminal adapters (2).
NOTE
Tag cables for installation.
2.
Remove six terminal adapters (2) and eight rubber boots (3) from four batteries (1).
3.
Remove ten nuts (6), lockwashers (7), and washers (8) from battery tiedown bolts (10). Discard
lockwashers (7).
4.
Remove two battery tiedowns (11) from battery box (9).
NOTE
Assistant will help with step 5.
5.
Remove four batteries (1) from battery box (9).
6.
Remove ten battery tiedown bolts (10) from battery box (9).
NOTE
Refer to TM 9-6140-200-14 for battery inspection and service.
Inspect battery box (9) for corrosion and acid deposits. If found:
a. Apply sodium bicarbonate and water solution to inside of battery box.
b. Let solution set for five minutes.
c. Rinse with clean water.
d. Wipe dry with clean rag.
3-336
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