Table 1. Unit Preventive Maintenance Checks and Services (PMCS)
for the M915A3 Tractor Truck - Continued.
NOT FULLY MISSION
To avoid eye injury, eye protection is required when working around batter-
ies. DO NOT smoke, use open flame, make sparks or create other ignition
sources around batteries. If a battery is giving off gases, it can explode and
cause injury to personnel. Remove all jewelry such as rings, ID tags,
watches, and bracelets. If jewelry or a tool contacts a battery terminal, a
direct short will result in instant heating, injury to personnel, and damage to
To reduce battery damage, do not remove batteries from battery box unless
battery compartment is corroded (greenish/white powder) or during battery
replacement. Do not jerk or pull on battery cables during visual inspection.
Battery replacement will be performed only by Unit Maintenance person-
a. Remove batteries from battery box.
b. Check for damaged or missing filler caps.
Filler caps are damaged or
c. Check for damaged terminal posts.
Terminal posts are damaged.
d. Check electrolyte level (TM 9-6140-200-
Electrolyte is not at proper
e. Check and record specific gravity of each
cell in all batteries (TM 9-6140-200-14).
Specific gravity is not within
f. Check battery cables for frays, splits, and
Cables are missing, frayed,
split or broken.
g. Clean battery box.
h. Install batteries.
i. Coat terminals lightly with grease (Item
15, WP 0235 00).