TM 9-4940-568-10
2-45
Table 2-4. Operator’s Level Preventive Maintenance Checks and Services (Weekly) (CONT).
Item
No.
Interval
Item to
Check/
Service
Procedure
Not Fully Mission
Capable If:
Remove all jewelry such as rings, ID tags, bracelets, etc. If jewelry or
tools contact positive electrical circuits a direct short may result. Damage
to equipment, injury or death to personnel may occur.
Lead-acid battery gases can explode. Do not smoke, have open flames, or
make sparks around a battery, especially if caps are off. If a battery is gassing,
it can explode and cause injury to personnel.
45
Weekly
Batteries
Visually check for missing battery caps (1).
Check electrolyte level. Electrolyte should be
filled to approximately 1/8 in. (3.2 mm) below
level/split ring in the battery filler opening
(vent). Visually inspect batteries for cracked
and leaking casing (2), broken, loose, burned,
and corroded terminal posts (3), loose, or
missing hold down bar (4).
Battery is unserviceable,
missing, leaking,
terminals or cables are
loose, corroded, burnt, or
hold downs are not
secure.
NOTE
Perform the following check below 50 F
(10 C) only.
46
Monthly
Heater
Check operation of heater control (5) by
turning clockwise. Warm air flow should be
present within five minutes. Check heater vent
exhaust (6) for leaks or obstructions.
Heater exhaust is leaking.
5
6
2
1
4
3
3
