OPERATION OF CBT BACK-UP POWER FOR BRIDGE LAUNCH OR RETRIEVAL
Failure to transfer residual hydraulic oil if power change
from LPU to CBT occurs during launch or retrieval may
result in overflow of oil or damage to equipment.
Should the Launch Power Unit (LPU) become inoperable
during the middle of a bridge launch or retrieval, the
Common Bridge Transporter (CBT) will be used to
complete launch or retrieval. In this event, before
completing launch or retrieval, a specific amount of oil
from the CBT's hydraulic reservoir must be transferred
to the pallet's auxiliary reservoir to prevent the CBT
hydraulic reservoir from overflowing.
Ensure weight of oil in CBT and pallet hydraulic systems
are the same prior to transferring oil. Change oil if
The amount of oil to be transferred will be determined
using the Oil Transfer Table below.
10. Referring to digital display on pallet RCU, determine the launch or retrieval
work step at time of power failure and the amount of oil to be transferred
using the Oil Transfer table below.
Oil Transfer Table.