TM-9-2320-433-10
TRUCK, CARGO, GUIDED MISSILE TRANSPORTER (GMT), 8X8, M985E1
TECHNICAL MANUAL; OPERATOR'S MANUAL
JUNE 2009
TM-9-2320-433-10 - Page 136 of 964
CRANE OVERVIEW - Continued
Individual control panels, boom-hydraulic cylinder arrangements, and lifting capacities are
different.
All cranes are powered from the vehicle's hydraulic system.
All are equipped with outriggers for stability during operation.
All cranes use a combination of hinged joints and telescoping members to give them their
motions.
The hydraulic-powered hoisting winch has an automatic brake to prevent accidental
lowering of the load.
CRANE OPERATING INSTRUCTION PLATE LOCATIONS
NOTE
Refer to stowage and decal/data plate guide for more information on plate
locations.
The crane operating instruction plates are located on the heater compartment cover in the
cab at each of the fixed operating stations.
The outrigger leg signs are located on each of the outrigger cylinders.
The load capacity signs are located at the main and auxiliary control panels, and on M984A
they are located on the wrecker body rear stowage box doors.
CRANE ELECTRICAL SYSTEM
NOTE
Vehicle may be equipped with either a HIAB model 8108 or 8108-2 crane
(refer to crane data plate on passenger side rear fender). The HIAB model
8108-2 may be equipped with either an analog remote control system
(RCIII M [RCM]) and designated 8108-2 or a digital remote control system
(Combidrive 5000 CD) and designated 8108-2CD. The differences
between models are noted in appropriate areas throughout this manual.
HIAB material handling crane has overload shutdown and/or tilt warning (unstable) systems.
HIAB material handling cranes have a yellow caution light as fixed operator's station and
an audible warning signal that alerts the operator when an unstable crane condition occurs.
HIAB cranes have an overload shutdown system which senses lift cylinder pressure to
prevent overloading the crane. The system will shut down the crane to prevent hoisting,
boom extension, or boom raising when an overload condition exists. Load lowering and
boom retraction functions will not be affected.
The crane electrical system is supplied with power by the vehicle 24 VDC system.
TM 9-2320-433-10
0016
0016-2
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