TM 9-4940-568-10
2-169
2-41. OPERATING FORWARD REPAIR SYSTEM (FRS) IN EXTREME COLD
ENVIRONMENT –26 F TO -50 F (–32 C TO –46 C).
Do not touch extremely cold metal (below –26 F [–32 C]). Bare skin may freeze to
cold metal and cause injury to personnel.
NOTE
Principles for operating in cold environment apply to extreme cold environment. Refer
to Para 2-40 for operating in cold environment.
(1)
Before crane is to be operated perform warm-up as follows:
(a)
Prepare crane for use (Para 2-29).
(b)
Move RH control lever to DOWN position and lower outrigger jack cylinder. Lower the outrigger
jack cylinder down to the pad, but do not attach the pad. Fully retract the outrigger jack.
(c)
Repeat Step (b) using the LH control lever.
(d)
Set up the outrigger jacks (Para 2-29).
Mast must be fully extended or damage to equipment may result.
(e)
Raise the crane to operating position using only the manual controls, and holding each respective
control fully open in the appropriate direction until the crane function responds (Para 2-29).
Perform the following operations (f) through (k) in specified sequence for 10 minutes.
(f)
Lower the hook block to ground and raise to 2 ft. (0.61 m) from boom nose.
