TM-5-5420-279-10
Section I. OVERVIEW
Overview
7.1.1.1
The back up mode of operation for the launcher system, is designed to give safe
operation without electrical control being available, due to damage or failure of any
of the electrical control systems.
7.1.1.2
The launcher deployment control (folding, rotate) is achieved by manually operating
the relevant solenoid valves.
7.1.1.3
The bridge launching controls use two remote manual valves (see Figure 7.2), one
to control the function of the main proportional valve the other to release the winch
brakes. These control valves are operated from ground level at the left hand (when
looking at the bridge/gap) A-frame stabilizer leg.
7.1.1.4
The valves, which set the hydraulic sequencing for each bridge function, are
manually set by clipping the mushroom buttons on the relevant solenoid valves and
then controlling the function/direction using the two remote levers.
7.1.1.5
The function of the back up mode valve is dependent on the direction of lever
operation (see Figure 7.1). The back up brake valve is independent of the direction
of lever operation.
Winch Brake
Proportional Control
Release
Function
Motion
Lever Action
In
Push Lever
Push or Pull Lever
Beam Drive
Out
Pull Lever
Push or Pull Lever
Extend
Push Lever
-
Articulator
Retract
Pull Lever
-
Raise
Push Lever
-
A-frame
Lower
Pull Lever
-
Top Winch
Pull
Pull Lever
Push or Pull Lever
Bottom Winch
Pull
Pull Lever
Push or Pull Lever
