TM 9-2350-256-10
(d)
To operate boom or spade under no-load condition:
1.
Move
APU
emergency
winch control
valve
to
NORMAL
OPERATING
position.
2.
Move
SYSTEM
SELECTOR
control lever
(2)
to
AUX
position.
3.
Operate BOOM or SPADE operating levers. See paragraph 2-11e for boom operation or
paragraph 2-11d for spade operation.
NOTE
Valve position is for normal operations.
(e)
To operate hydraulic impact wrench of refuel-defuel system:
1.
Check APU emergency winch control valve for NORMAL OPERATION position.
2.
Move SYSTEM SELECTOR control lever (2) to REFUEL.
3.
See paragraph 2-13e for refuel-defuel operation or paragraph 2-13f for hydraulic impact wrench
operation.
d.
Spade Operation.
(1)
Controls. Spade is controlled by main or auxiliary hydraulic system. Controls are located in driver's area.
(a)
Prepare main hydraulic system for operation (see para. 2-11c).
NOTE
Refer to paragraph 2-11c(2) for using auxiliary hydraulic system to stow spade.
(b)
Spade is used to stabilize vehicle when:
1.
Hoisting over 6 tons (5.4 metric tons) without lockout blocks installed.
2.
During all main winching operations.
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