TM 5-5420-234-14&P
Section II. EQUIPMENT DESCRIPTION
a.
Characteristics. The M1977 CBT is made up of a Transporter, consisting of a remanufactured and modified
M977 HEMTT truck chassis with a self-contained LHS and either a BAP or an IBC. The CBT is used for
loading, transporting, and unloading bridge erection boats and interior bridge bays and ramp bridge bays. The
CBT is also capable of launching and retrieving the bridge bays and bridge erection boats. The operator can
manipulate the LHS through controls mounted in the truck cab or through an external hand-held remote
control unit provided the power takeoff (PTO) switch is engaged. For a detailed explanation of support
equipment characteristics, capabilities, and features, refer to TM 9-2320-279-10 for the HEMTT, to TM 5
1940277-10 for the bridge erection boat, and to TM 5-5420-277-14&P for the IBC.
b.
Capabilities and Features.
HEMTT:
See TM 9-2320-279-10
Bridge Erection Boat:
See TM 5-1940-277-10
IBC:
See TM 5-5420-277-14&P
Ribbon Bridge:
See TM 5-5420-209-12
LHS:
Maximum lifting load
20,000 lb (9080 kg)
Operational modes
Automatic
Manual
Operational controls
Cab control
Remote control
Night operation
Worklight
Spotlight
BAP:
Multipurpose flatrack
Accommodates interior bay and ramp bay
Winch frame
Can be secured to the LHS or the BAP
Winch
Hydraulic
