TM 5-3810-307-10
o.
Outrigger System. The outriggers are integral with the carrier frame but are
controlled and operated from the superstructure. The outriggers are full hydraulic,
double box-type. They are positioned to provide a rigid four point platform
(outriggers fully extended and set) capable of supporting the machine and its
maximum load capacity. Integral holding valves and floats are standard equipment.
A sight level bubble indicator is located in the superstructure cab to ensure crane
p.
Swivels. Electrical and air/hydraulic swivels are used to route the air, electrical, and
hydraulic circuits to the superstructure from the carrier frame. These swivels are
mounted as a single assembly, and are installed at the center of rotation.
q.
Electrical System. The electrical system operates on 24 VDC and consists of an
alternator and four 12-volt, lead acid batteries which are series-parallel connected.
The system is single wire ground return-type, utilizing the crane's chassis as ground.
The system also features a battery disconnect switch designed to protect operators
and maintenance personnel while performing inspections and maintenance.
There is a standard NATO slave receptacle mounted below the battery box located
on the right side of the crane. The receptacle can be used to start the crane or
power the auxiliary power unit in the event the vehicle's onboard batteries cannot
provide the power for either function.
A backup alarm is an audio system used to warn personnel outside the crane when
the vehicle is backing up. The alarm system is electrical and consists of the backup
alarm and associated wiring. The alarm is tied into the backup light electrical wiring,
and is activated when the backup light is activated. Two backup alarms are
installed. One is installed on the rear of the turntable and one is installed on the rear
of the chassis.
A boom swing alarm can also be sounded by the crane operator in the
superstructure cab. The alarm is activated by a pushbutton on the right side arm
rest.
r.
Related Crane Functions. The crane is equipped with interface components and
attachment points for connecting and operating the following attachments:
(1)
Clamshell. When attached to the main hoist cable, a hydraulically-operated
general purpose bucket with teeth can be operated from the superstructure
cab. Hydraulic control and actuation power is supplied by the crane via a
hose reel/tagline mounted on the boom.
(2)
Grapple. When attached to the main hoist cable, a hydraulically-operated,
four-tine grapple with heavy-duty cylinders can be operated from the
superstructure cab. A hydraulic tagline mounted on the boom provides
power for operating the grapple.
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