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Page Title:
Section IV. PREVENTIVE MAINTENANCE SERVICES UNDER UNUSUAL CONDITIONS |
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 Operator's
ChecklistContinued
Interval
Interval
Item
Paragraph
Item
Paragraph
D
Procedure
B
reference
B
A
No.
D
A
Procedure
No.
reference
X
d. Have the specific
17
BATTERY.
a. Check the level of the
X
gravity of the electrolyte
electrolyte in the battery.
checked.
The electrolyte should be
e. Clean the battery and
one-half inch above the
carrier as necessary.
plates.
b. Inspect the battery
X
18
ANTLFREEZE (in sea-
case for cracks and leaks.
son).
c. Inspect the battery
X
Have the protective
terminals and straps for
value o f t h e a n t i f r e e z e
secure mounting and for
checked.
Section IV. PREVENTIVE MAINTENANCE SERVICES UNDER UNUSUAL CONDITIONS
25. General
nated by proper authority. If shelter is not
available, cover the truck with paulin or similar
When the truck is operated under unusual
material. Park the truck with the front end
conditions, extra care must be taken to main-
into the wind.
tain the truck in good operating condition.
b. Cooling System. If antifreeze is not avail-
Certain additional services must be performed,
and some of the regular preventive mainte-
able and the truck is to be at rest for an ap-
nance services must be performed more often.
preciable length of time, drain the radiator
and cylinder block when the temperature is
26. Extreme Heat
likely to be 32 F., or lower. Attach a tag to
a. Cooling System.
the steering wheel to warn personnel that the
radiator has been drained. Do not add water
(1) Check the fan belt more frequently
to the radiator that contains antifreeze com-
for proper tension. The fan belt
pound without subsequently allowing the en-
should deflect one-half inch when An-
gine to run until the solution is well mixed.
ger pressure is applied midway be-
Have the solution tested frequently with an
tween the pulleys.
antifreeze hydrometer.
(2) Check the coolant level more frequent-
c. Electrical System.
ly, maintaining it at the bottom of the
fillercap neck. B e s u r e t h e r a d i a t o r
(1) Have the specific gravity reading of
cap is secure.
the electrolyte in the battery taken
(3) Keep the external parts of the radi-
more frequently.
ator clean and free of foreign matter
(2) Do not add water to a battery exposed
for better air circulation.
to cold temperature unless the en-
(4) Have the cooling system flushed and
gine is to be operated immediately.
cleaned frequently.
(3) Have the battery removed and stored
b. Battery. Check the electrolyte level more
in a warm place when shelter for the
frequently, mainteining it one-half inch above
parked truck is not available.
the plates. Have the specific gravity checked
more frequently.
28. Sandy Terrain
27. Extreme Cold
Take precautions to prevent sand and dust
a. Shelter. Store the truck in a heated build-
from entering the fuel system. Tie a loose bag,
ing or shelter, when possible, and as desig-
made of single-layer cloth, over the entire air
16
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