EXTREME HOT WEATHER MAINTE-
N A N C E
a. General. Maintenance of vehicle under
extreme hot weather conditions requires more
frequent checks and services. Lubricants and
coolant evaporate, fungus and rust form
rapidly, and straps and canvas material may
rot from mildew, mold, or fungus.
b. Cooling System Maintenance.
(1) Check coolant level frequently and
keep system filled to within 1 in. (2.5 cm)
below base of fill neck. Avoid use of water
that contains alkali. Use soft water whenever
(3) Thoroughly clean and flush cooling
system at frequent intervals. Refer to page
3-30. Clean outside of radiators of any ac-
cumulated dirt, grease, and debris.
(4) Check and adjust fan belt tension at
frequent intervals. Refer to page 3-31.
c. Battery Maintenance.
(1) Check level of battery acid in cells
daily. Electrolyte level must not drop below
top of battery plates. Have unit maintenance
personnel add distilled or rain water if
Do not store acid type storage batteries near
stacks of tires. Fumes from batteries have a
harmful effect on rubber.
(2) Have unit maintenance personnel
remove batteries and store them in a cool
place if vehicle is to be parked for several
days. A battery will self-discharge at a greater
rate if left standing for long periods
d. Hull and Cab Maintenance.
In extreme hot, humid weather,
corrosive action will show in
form of rust and paint blisters
on metal and mildew, mold, or
fungus growth on wood, fabric,
leather, and glass.
(1) Make frequent inspections of inac-
(2) Remove rust, paint blisters, mildew,
mold, or fungus from components.
(3) Apply protective coat of rust preven-
tive paint on painted surfaces or film of
preservative lubricating oil (item 3, appx D) to
(4) Coat battery cables and terminals
with a light coat of grease (GAA) (item 19,
e. Armament Maintenance.
(1) Inspect parts frequently for con-
densed moisture or corrosion.
(2) Thoroughly dry all exposed un-
painted surfaces and lubricate (appx G.
AFTER FORDING MAINTENANCE
The following maintenance should be done at
once on all vehicles that have been exposed
to some depth of water or completely
submerged, especially in salt water.