Connecting the Chest Pack to Launcher
If the four position deployment selector switch in the vehicle cab is placed to position 4 with
the chest pack disconnected, the emergency stop system will be automatically operated.
Remove the chest pack and its umbilical cable, if disconnected, from its stowage and
uncoil it along the ground adjacent to the launch vehicle.
Remove the chest pack harness from its stowed position and secure it to the operator
with the shoulder harness straps. Attach the chest pack to the harness.
Check the emergency stop button is released by pulling the knob.
Remove the dust caps from the ends of the umbilical cable and, if required, the chest
pack and connect the end of the launch umbilical cable to the chest pack.
Remove the dust caps (Figure 3. 9) from either of the remote connectors on the outer A-
frame legs. Connect the umbilical cable to the connector selected for use.
Set the chest pack power switch to DIM or BRIGHT as necessary. Make sure the
indications on the chest pack display screen are correct and that the `Power' light is only