2-51. OPERATING TRUCK IN EXTREME COLD
ENVIRONMENT 26 DEGREES F TO 50 DEGREES F
(32 DEGREES C TO 46 DEGREES C) (CONT).
Fuel/water separator should be drained before topping off fuel
tank. Keep fuel tank as full as possible during cold operations.
Water forms in empty fuel tank as it cools. Water in fuel system
could freeze and block system.
All snow and ice should be removed from truck as soon as
possible. Snow and ice may slow or stop movement of critical
parts if allowed to pile up.
Special care must be used during operations in extreme cold
environment. In extreme cold, engine coolant and fluid in
windshield washer can freeze. Batteries can freeze and crack.
Oil and grease may get thick and stiff. Rubber may crack or
Before crane is to be operated perform warm-up as follows:
Prepare crane for use (Para 2-30).
Turn the manual override knob on the MHC main hydraulic pressure
valve counterclockwise and pull out knob (Para 2-30). Run for 15
Operate right side outrigger jack control (Para 2-30) fully in the
DOWN position and hold until the jack descends. Extend the
outrigger jack down to the pad, but do not attach the pad. Fully retract
the outrigger jack.
Repeat Step (c) using the left side outrigger jack.
Set up the outrigger jacks (Para 2-30).