TM 5-3810-306-10
Section IV - OPERATION UNDER UNUSUAL CONDITIONS
INTRODUCTION
This section provides special procedures, safety
precautions, etc. for weather conditions and modes of
operation that are not ordinary. This section supplements
the section "Operation Under Usual Conditions."
COLD WEATHER OPERATION
NOTE
Cold
weather
operation
requires
additional caution on the part of the
operator.
1.
Check operating procedures for cold weather
starting.
2.
Don’t touch metal surfaces that could freeze you to
them.
3.
Clean crane, especially the boom, of all ice and
snow.
4.
Allow ample time for hydraulic oil to warm up.
5.
During freezing weather, frequently check all air
tanks for water.
6.
Before lifting, ensure load is not frozen to ground or
other surfaces.
WARNING
The use of aerosol spray or other types
of
starting
fluids
containing
ether/
volatiles can cause explosions or fire.
7.
Use the cold weather starting aid provided for diesel
engine. Refer to TM 5-3810-306-24P.
CAUTION
The drive line can be damaged when
attempting to free a frozen crane.
8.
In freezing weather, park crane in an area where it
cannot become frozen to ground.
COLD WEATHER STARTING
The correct grade of oil for the prevailing temperature
should be used in the crankcase to reduce hard
cranking. Refer to LO 5-3810-306-12. Diesel fuel should
have a pour point of 10F (-12°C) less than the lowest
expected temperature. In case of emergency, Diesel
Fuel Inhibitor, NSN 6850-00-753- 5061 may be added to
the fuel to bring the pour point down to the required
temperature to prevent clogging of filters and small
passages by wax crystals. The addition of kerosene is
NOT recommended for general use. If low temperatures
are ONLY expected at start-up, use the cold weather
starting aid provided. Start crane as follows:
CAUTION
Do not engage or disengage hydraulic
pump
with
the
engine
running.
Otherwise, damge to the pump and drive
could occur.
1.
Disengage hydraulic pump at disconnect.
2.
Position IGNITION switch to ON.
3.
Depress and hold both ENGINE START and quick
start pushbutton. After two seconds, release quick
start pushbutton.
4.
If engine does not start within 30 seconds, allow
starter to cool for one or two minutes and repeat
procedure.
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