When an item on the launch vehicle or launcher is referred to as front or rear, left or right, the
cab is taken as the front of the launch vehicle, all references are taken as if personnel are
looking forward towards the cab. Therefore, if the left hand side A-frame leg is being
discussed, the A-frame leg on the launch vehicle's left hand side is the item being described
(i.e. the driver's side).
When referring to the launch beam the front of the beam is to be taken as the far bank and the
rear is taken as the near bank, it follows therefore, that the front carriage is the far bank
carriage and the rear carriage is the home bank carriage.
Before bridge retrieval is commenced, the appropriate bridge drive setting must be selected to
take account of the site conditions. The bridge drive setting is determined by the bank
heights, refer to Chapter 1 Section II Table 1.11 for correct settings.
On the chest pack, make progressive movements to the right on the joystick until the
required bridge drive mode is selected. Make sure the POWER and MODE SELECT
captions on the chest pack display flashes and the LEVEL caption illuminates.
Equipment damage. The CARRIAGE EMPTY function is only to be selected when both
carriages are supporting no load. It is to be used for carriage retrieval or deployment only. It
MUST NOT be used while the bridge is suspended.
The CARRIAGE EMPTY function light will continuously flash and is green in color. This is to
act as a warning for the conditions of its use.
While in MODE SELECT, forward or rearward movement of the joystick on the chest pack
results in no physical effect on the hydraulic system.
On the chest pack, move the joystick forwards until the CARRIAGE EMPTY function is
selected. Move the joystick once to the right and make sure the POWER caption remains
illuminated and the CARRIAGE EMPTY caption is illuminated. Make sure the MODE
SELECT caption goes off.
OPERATION OF EQUIPMENT POWERED BY HYDRAULIC
PRESSURE IS HAZARDOUS. KEEP CLEAR OF MOVING PARTS.
EXPOSURE TO HYDRAULIC FLUID UNDER PRESSURE IS
HAZARDOUS. IN THE EVENT OF A HOSE OR COMPONENT FAILURE, REMOVE ALL FLUID
CONTAMINATION FROM THE SKIN AND EYES WITH CLEAN WATER AND SEEK MEDICAL
Release the restraint holding the home bank carriage to the launch frame.