TM 5-3810-307-10
Seat Position Adjustment (17). One adjustment controls seat back position. The other
moves seat cushion forward and back.
SWING BRAKE ON/OFF Selector Switch (18). The switch is located on the left arm rest
behind the SWING/AUXiliary Hoist Control Lever (20). The switch sets the swing brake
when in ON position (prevents all swing functions). In OFF position, swing brake is
controlled by the Swing Brake Pedal (16).
AUX HOIST ON/OFF Selector Switch (19). The switch is located on left arm rest behind
SWING/AUXiliary Hoist Control Lever (20). This switch enables and disables the auxiliary
hoist function only in the SWING/AUX Hoist Control Lever (20). In the ON position, the
auxiliary hoist function is enabled. The function is disabled in the OFF position. The switch
must be pulled while moving it from the OFF to the ON position.
SWING/AUXiliary Hoist Control Lever (20). The lever is located on the end of the left
armrest. The lever controls swing and auxiliary hoist functions. The lever, when positioned
to the left or right actuates a control valve through hydraulic pilot pressure to provide 360
continuous swing rotation in the desired direction. When AUX HOIST ON/OFF Selector
Switch (19) is in the ON position, pushing the lever forward actuates the control valve to let
out auxiliary hoist rope and pulling the lever back reels the wire rope in. Moving the lever in
a diagonal direction actuates the both swing and auxiliary hoist functions.
Telescope/Clamshell Control Pedal (21). The pedal is located on the left side of the cab
floor. When the TELE/CLAMSHELL Selector Switch (10) is in the TELE position, pushing
forward on the top of the pedal actuates a control valve through hydraulic pilot pressure to
telescope the boom out. Pushing on the bottom of the pedal will telescope the boom in.
When the TELE/CLAMSHELL Selector Switch (10) is in the CLAMSHELL position, pushing
forward on the top of the pedal actuates the clamshell (or grapple) cylinder to open the
clamshell (grapple). Pushing on the bottom of the pedal closes the clamshell (grapple).
CRANE FUNCTION POWER Switch (22). The switch is located on the upper left side of
the front console panel. The switch is a two-position toggle switch marked ON/OFF.
Placing the switch to OFF removes all power from the crane functions controlled by the
armrest joysticks. This prevents accidental operation of the controlled crane functions
caused by bumping the joysticks.
Transmission OIL TEMPerature Gauge (23). The gauge is located on the upper left side
of the front console panel. The gauge indicates the transmission oil temperature as sensed
by a transducer in the transmission oil lines. Indication is on a dual scale which is
graduated from 160 to 320 F and 60 to 160 C.
AIR PRESSURE Gauge (24). The gauge located on the upper left side of the front console
panel. The gauge is a direct reading, dual pressure gauge. A red needle indicates primary
air pressure in supply reservoir, and a green needle indicates secondary air pressure in
secondary reservoir and auxiliary reservoir. The gauge has a dual scale calibrated from 10
to 150 psi and 100 to 1,000 kPa. Tubing connects the gauge to the air system.
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