STOP CONTROL down. The
EMERGENCY STOP CONTROL reset
To restart the engine after the
lever, located on left side of engine must
EMERGENCY STOP CONTROL has
be pushed toward the cylinder block.
been used, push the EMERGENCY
Section II. OPERATION UNDER UNUSUAL CONDITIONS
foreign materials. If fuel filters requir servicing,
2-6. Operation in Extreme Cold (below 0°F.
report to organizational maintenance.
f . Lubricate in accordance with current
a. Check coolant level and add coolant as
lubrication chart (fig. 3-1).
specified in table 2-1. Have organizational main-
g. Pull up on either primer button, engage starter,
tenance perform specific gravity test to make sure
and with the engine turning, press the ether button
that antifreeze solution is correct for lowest tem-
down. If combustion does not occur, repeat the
priming process with the starter engaged.
b. Inspect cooling system. Correct or report any
h. In extremely cold weather it is advisable to
give the engine one priming charge before engaging
c. Keep batteries fully charged. After adding
the starter. Then proceed as in g above.
distilled water to the batteries, run the engine for at
i. Allow the engine to reach normal operating
least 15 minutes.
temperature before applying load.
d. Keep fuel tank full when not in operation.
e. Drain secondary fuel filters of water and
Table 2-1. Freezing Points, Composition, and Specific Gravities of Military Antifreeze Material
at 68º F.³
Issued full strength and ready mixed for 0 to 65º F temperatures
for both installation and losses.
Maximum protection is obtained at 60 percent by volume (4.8 pints of ethylene glycol per gallon of solution).
Military Specification M IL-C-11755 Arctic type, non-volatile antifreeze compound is intended for use in the cooling system of
liquid cooled internal combustion engines. It is used for protection against freezing primarily in Arctic regions where the ambient
temperature remains for extended periods of time close to 40º F., or below, to as low as 90° F.
` Use an accurate hydrometer. To test hydrometer, use 1 part ethylene glycol type antifreeze to 2 parts water. This should produce a
hydrometer reading of 0° F.
2-7. Starting Aid
(2) perform normal starting procedures (para
a. General The starting aid is a pressurized
(3) If engine fails to start, refer to
system used to inject a highly volatile fluid into teh
troubleshooting table (table 3-2).
engine air intake system. This is to facilitate
starting when ambient temperatures are below
2-8. Operation in Extreme Heat
40° F. The replaceable pressurized cylinder contains
sufficient fluid for 75-150 starts.
Be extremely careful when removing the
b. Operating the Starting Aid.
radiator filler cap of a hot engine. Release
(1) Operate starting aid control for about 2
of pressure may cause violet boiling and
seconds. Wait 3 seconds before cranking engine.
serious injury to personnel.