TM 5-5420-280-10
0006 00
COMMON BRIDGE TRANSPORTER (CBT) LOAD HANDLING SYSTEM (LHS)
CONTROLS AND INDICATORS (Contd)
W
FREE-FLOW VALVE TOOL -- This tool, attached to control valve cabinet, is
used to manually lock free-flow valve in closed position prior to manual
operation of LHS directional control valves.
X
manually depress solenoid buttons on directional control valves for LHS
operation.
Y
HOUR METER -- The hour meter, if so equipped, is an electric clock
mounted on main junction box at top of main manifold support frame. The
hour meter records total number of operating hours on LHS hydraulic system
for maintenance purposes.
Z
MAIN FRAME SOLENOID BUTTONS -- The solenoid button at each end
of top directional control valve that opens or closes valve when manually
depressed with the aid of the solenoid tool. The top directional control valve on
main manifold controls directional flow of hydraulic oil to cylinders to raise
and lower LHS main frame. This control valve is intended to be manually
operated only when electric power is lost to solenoids.
AA
HOOK ARM SOLENOID BUTTONS -- The solenoid button at each end of
center directional control valve that opens or closes valve when manually
depressed with aid of the solenoid tool. The center directional control valve on
main manifold controls the directional flow of hydraulic oil to cylinders to
raise and lower LHS hook arm. This control valve is intended to be manually
operated only when electric power is lost to solenoids.
AB
WINCH SOLENOID BUTTONS -- The winch solenoid buttons are not used
when operating REB pallet off CBT hydraulic system.
AC
FREE-FLOW VALVE -- The free-flow valve is located on main manifold
adjacent to main relief valve, and is electrically activated by a solenoid. When
activated, free-flow valve closes to divert fluid pressure to directional control
valves for operation of LHS main frame and hook arm. Should electric power
to solenoid be interrupted due to a malfunction, this valve must be manually
held in closed position with free-flow valve tool.
0006 00-8
