2-23. OPERATION IN EXTREME COLD.
The vehicle cannot be operated during periods when temperatures are below -25°F (-32°C). In situations when
temperatures are above -25°F (-32°C) and below 32°F (0°C), the following instructions must be observed.
a. Start-Up and Operation.
(1) Remove all snow and ice from vehicle as soon as possible.
(2) Prepare vehicle for operation in severe cold tcmperatures according to FM 9-207, FM 31-70, FM 31-71,
and FM 21-305 as necessary.
(3) Decrease tire pressure if prcssurc was increased for long stand-by periods when temperatures were below -
(4) Drain fuel filter and fuel/water separator beforc filling fuel tank to prevent any water in fuel from freezing.
This will also prevent fuel filter from clogging.
(5) Keep fuel tank as full as possible during cold operations.
(6) Start engine (para 2-9) and allow it to warm up to normal operating temperature.
(7) Watch gauges closely. If there are any unusual readings, stop vehicle (para 2-10[c]), turn engine off, and
(8) Slowly raise and lower rotor assembly, tailboard, and spray bar (para 2-11) to allow hydraulic fluid
Icy roads and surfaces are common during periods of severe cold. Care should be exercised when
operating on icy surfaces. Sudden movements or lack of attention can cause accidents, injury and
(9) Drive vehicle on icy surfaces as follows:
(a) Drive vehicle forward (para 2-10) and allow hydraulic fluid in drive system to warm-up.
(b) Turn vehicle right and left to allow hydraulic fluid in steering system to warm-up
(c) Avoid making sudden turns and stops.
(d) When slowing or stopping, pump brake pedal lo avoid slipping and sliding.
(e) Begin stopping sooner than normal to avoid slipping and sliding.