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SPECIFICATIONS
Crawlers:
Crawler assemblies are designed with a quick disconnect,
hook and pin feature for easy individual removal as a unit
from axles. Crawler belt tension adjusted with hydraulic
jack and maintained by shims between the idler block
and frame.
Crawler drive:
The independent two speed hydraulic propel drive is built
into each crawler side frame. Each drive consists of a
hydraulic motor driving a propel sprocket through a
planetary gear box. The hydraulic motor and gear box
are built into the crawler side frame within the shoe width.
Crawler brakes:
Spring set, hydraulically released, multiple disk-type parking
brakes are built into each propel drive.
Steering mechanism:
A hydraulic propel system provides both skid steering and
counter rotating steering.
Crawler shoe:
68 shoes - 52” wide, each crawler.
Track rollers:
The track rollers are sealed for maintenance free operation.
Upper rollers also assisted by bolt on track wear slides.
Lower Machinery
4
Front drum:
Front and rear drums for load hoist powered by hydraulic
variable plunger motors, driven through planetary reducers.
Negative brake
A spring-set, hydraulically released multiple
disk brake is mounted on the hoist motor and
operated through a counter-balance valve.
Drum lock
External ratchet for locking drum
Drums:
Front drum -
618 mm P.C.D. x 864 mm Lg., grooved for 26 mm
wire rope. Rope capacity is 1,575’ (480 m) working
length and 1,673’ (510 m) storage length.
Rear drum -
618 mm P.C.D. x 864 mm Lg., grooved for 26 mm
wire rope. Rope capacity is 1,280’ (390 m) working
length and 1,673’ (510 m) storage length.
3rd drum (optional) -
462 mm P.C.D. x 522 mm Lg., grooved for 22 mm
wire rope. Rope capacity is 869’ (265 m) working
length and 909’ (277 m) storage length.
Line pull:
Max. line pull (single line) -
56,700 lbf (252 kN)
Rated line pull -
29,700 lbf (132 kN)