TM-5-5420-279-10
77. Raise bridge and release bridge stops emergency once bridge starts to
move.
Ensure that the chest pack is in BRIDGE LIFT mode.
WARNING
CRUSH HAZARD. DO NOT RELEASE BRIDGE STOPS EMERGENCY UNTIL
BRIDGE IS CONNECTED TO THE CARRIAGE AND IT STARTS TO MOVE
REARWARD. FAILURE TO HEED THIS INSTRUCTION COULD RESULT IN THE
BRIDGE FALLING OFF THE LAUNCHER WITH CONSEQUENT DEATH OR
SERIOUS INJURY TO PERSONNEL.
Ensure that bridge stops emergency are not being released too soon as
bridge moves rearward.
Bridge stops will not release.
Check bridge stops emergency are not being released too early/late and are
under load.
Check bridge stop emergency pivot for seizure. Clean/lubricate. Report
seizure to maintenance.
Check bridge stop emergency handle and shaft for deformation/obstruction.
Report any deformation to maintenance.
Check V notch in A-frame side rubbing pad for wear limit. Report wear to
maintenance.
78. Re-shootbolt home bank carriage.
Ensure that the bridge is fully lifted and shootbolt holes align.
79. Release tension in winch cable.
80. Reverse bridge to release home bank carriage latches.
81. Release carriage latches and boom bridge forward.
Check home bank carriage latches for stiffness/seizure. Report seizure to
maintenance.
82. Stop bridge boom when carriage restraint arms are fully extended.
Check carriage arm pivots and connections for freedom of movement.
Report any defect to maintenance.
83. Raise bridge and release far bank carriage shootbolts.
Check that the chest pack is in BRIDGE LIFT mode.
Ensure that the bridge is fully lifted and far bank carriage shootbolts become
loose.
Check carriage lift beam to main carriage body shootbolts for
deformation/seizure. Report any deformation/seizure to maintenance.
84. Lower far bank of bridge to ground.
Check that the chest pack is in BRIDGE LIFT mode.
Check that both carriage shootbolts are fully retracted.
Lowering is not smooth or is noisy.
Check the rotation of all carriage pulleys. Report any defects to
maintenance.
Check far bank carriage for severe damage to carriage. Report damage to
maintenance.
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