Table 2-1. Unit Level Preventive Maintenance Checks and Services HMMWV (Cont'd)
ITEM TO BE
a. Inspect battery box and battery tray
a. Corrosion has
bolts for corrosion and debris. If any
made holes in metal
corrosion is evident, wipe bolts
and/or washers clean. If corrosion
cannot be removed or the surface of
bolts are pitted, replace bolts and/or
washers (para. 4-80).
b. Clean slave receptacle and coat
b. Terminals corroded.
with corrosion preventive compound
(Appendix C, Item 24).
c. Check and record specific gravity
c. If cell is below
of each cell.
1.225 specific gravity.
d. Inspect battery cables for frays,
d. Cables frayed, split,
splits, or looseness.
SPECIAL PURPOSE KITS
Check adjustment of cargo shell door
Check rear cargo door for proper
operation. Rotate gas springs (para.
11-21) 180 degrees every six
months and move left spring to right
side and right spring to left side.
NOT FULLY MISSION
Add 4 points (.004) to specific gravity
reading for every 10° above 80°F.
Do not perform battery system
checks or inspections while
smoking or near fire, flames, or
sparks. Batteries may explode
causing damage to vehicle, injury,
or death to personnel.
Remove all jewelry such as rings,
dog tags, bracelets, etc. If jewelry
or disconnected battery ground
cable contacts battery terminal, a
direct short will result, causing
injury to personnel, or damage to
Reefer to TM 9-6140-200-14 for more
specific details on battery maintenance.