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|  MIL-T-62110G
Interlocks shall not interfere with operation of the hydraulic tool circuits, with the outriggers up
or down. A self-actuating locking device shall prevent accidental raising of the outriggers while
the derrick assembly is elevated from stowage position. Each outrigger shall be provided with an
automatic, positive, spring actuated lock, or with an automatic pilot check valve which holds the
outrigger in the retracted position without settling and which may be manually released.
3.11.2 Outrigger movement. The outriggers for type I and type III shall be transversely
spaced not less than 11 feet, 6 inches, measured at the ground pad, and shall be of the
hydraulically operated type. The outriggers for type II shall consist of a hydraulically operated
slant type telescoping outrigger on the streetside rear and a hydraulically operated transverse
type outrigger on the curbside rear. The streetside outrigger shall extend not less than 54 inches,
measured from the longitudinal centerline of the vehicle. The curbside outrigger shall extend not
less than 76 inches, measured from the longitudinal centerline of the vehicle. For type II,
forward outriggers shall be transversely spaced not less than 11 feet, 6 inches, measured at the
ground pad and shall be of the hydraulically operated type. All transverse measurements shall be
made to the pad hinge pin or to the center of the pad, at the ground, with the vehicle resting on
the tires, on level ground.
3.11.3 Outrigger pads. Each outrigger ground pad shall have a ground contact surface
area of not less than 196 square inches. Ground pads shall be of the hinged or fixed type.
3.11.4 Outrigger warning light. A red warning light shall be installed in the cab in a
conspicuous location to warn the driver that the outriggers are extended.
3.12 Hydraulic system. The hydraulic system shall consist of the components required
to perform all hydraulically actuated operations of the derrick assembly, winch(es), components,
accessories, and outriggers with the degree of control specified herein. The mechanisms and
fluid reservoirs shall be positioned or shielded to prevent hazardous contact with heated surfaces
or electrical apparatus. An electric pushbutton throttle control shall be furnished. The electric
pushbutton shall activate the engine throttle to increase the engine speed to that required for
rotation of the derrick within the speed range specified in 3.3.5 and for operation of the
outriggers, pole puller and tamper, and to return the engine to idle speed. An accumulator may
be used as a component of the hydraulic system to provide the maximum degree of temperature
control under continuous service.
3.12.1 Hydraulic cylinders. All hydraulic cylinders shall incorporate seals to prevent
entrance of moisture and dirt into the cylinders, and to prevent leaks of hydraulic fluid from the
cylinders. Seals applied to reciprocating parts shall be of a design and type proven in hydraulic
applications. All hydraulic cylinders for actuating the derrick and outriggers shall be provided
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