TM 5-5420-280-23&P
0002 00
EQUIPMENT DESCRIPTION (Contd)
PALLET EQUIPMENT FEATURES (Contd)
X
LOWER SUPPORT BOOM The large structural frame, mounted on bearing shaft below launch
boom, that serves to lift launch boom while under load of bridge assembly by means of two large
hydraulic cylinders.
Y
CABLE GUIDE ROLLER The roller on center of launch boom that guides the winch cable during
launch and retrieval operations.
Z
UPPER ROLLER BLOCKS The two rollers, mounted behind lower support rollers on each side of
launch boom, that contact bridge launch beam to provide additional support during launch and
retrieval operations.
AA
LOWER SUPPORT ROLLERS The six rollers, mounted on end of launch boom next to rear pin
wheel drive, that function to hold bridge along roller contact surfaces of bridge launch beam during
launch and retrieval operations.
AB
REAR PIN WHEEL DRIVE The drive unit consisting of a gearbox, drive gear, hydraulic motor,
and brake, located on launch boom next to lower support rollers, that functions to drive and retain
bridge assembly during launch and retrieval operations.
AB
AA
Z
Y
X
~
W
V
0002 00-13
Change 1
