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TM
10-3930-643-10
Section IV. OPERATION UNDER UNUSUAL CONDITIONS.
2-23.
OPERATION IN UNUSUAL WEATHER.
a. Extreme Cold.
(1) General.
If operating an
proper operator protection is worn.
required for extremely cold weather.
open ROPS in extreme cold, ensure that
Extensive preparation of the forklift is
Extreme cold causes many problems:
Lubricants thicken or congeal.
Batteries may freeze or lose their electrical efficiency.
Electrical insulation may crack and cause short circuits.
Fuel may not readily vaporize for combustion.
Various materials will become hard, brittle, and easily damaged.
(2) Cooling system.
Inspect for leaks and general condition. Make sure
clamps are tight.
Check fluid level in radiator. Notify organizational mainte-
nance if system needs service.
(3) Fuel tank.
Do not allow fuel tank to remain partially empty for a
long period of time in extremely cold weather. Fill after each work period to
help avoid water condensation in the fuel tank. Remove all ice and snow from
around the fuel filler opening before refueling.
(4) Electrical system. Inspect battery cables, wiring harness, and
wiring. Check for breaks or cracks caused by cold weather. Report any damage to
organizational
maintenance.
Save your batteries. Use lights and other electrical equipment as little as
possible.
(5)
Lubrication.
Lubricate according to LO 10-3930-643-12. You will be
provided with lubricants with a pour point below the lowest expected operating
temperature.
(6) Engine operation.
(a) Before starting, make sure fuel and oil in the engine and
transmission
are
thin
enough
to
flow.
If
the
oil
drips
from
the
dipstick,
it
is
thin enough for the engine to be started.
(b) Use the ether starting aid. Refer to paragraph 2-20.
(c) Run the engine at reduced speed only long enough to circulate the
oil through the engine, then increase speed and warm up the engine. Low idling
speeds during extremely cold temperatures can result in incomplete combustion
and the formation of heavy deposits on the valves.
2-53
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