Drive train – Milton CAT D6K User Manual

Page 6

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Hydrostatic Drive. The electronically
controlled hydrostatic drive system
automatically maintains engine speed
to match the power requirements of
the application for peak performance.
The hydrostatic drive train also offers
independent power and control of each
track, for fast acceleration, infinitely
variable speed control and on-the-go,
direction changes. The operator can
command smooth “power turns” or
even counter-rotation of the tracks for
precise steering control in tight areas.
The Caterpillar hydrostatic drive system
manages itself, freeing the operator to
concentrate on using the Caterpillar
track-type tractor’s superb agility, speed,
and maneuverability to do more
productive work.

Infinitely Variable Speed Control.
Hydrostatic drive provides infinite
speed selection from 0 to 10 km/h
(0 to 6.2 mph) in forward and reverse.
This lets the operator select the optimum
speed for ground and job conditions.
It also eliminates power interruption
during shifting.

Ground Speed Balancing. Hydrostatic
drive provides a completely “step-less”
transmission of power and automatically
matches travel speed and implement
loads for increased efficiency and easier
operation.

High Power Utilization. The hydrostatic
drive system on the D6K is designed
to use full available engine power
throughout the machine working cycle.
If the implement hydraulic system is not
in use, this engine power can be
delivered to the drive train, providing
high drawbar pull and fast travel speeds.
If the implement hydraulics are being
worked hard, the machine control ECM
will automatically slow the tracks as
necessary to use the full remaining
engine power, without overloading
and stalling the engine. As soon as the
implement hydraulic load is decreased,
the machine control ECM will
automatically speed up the tracks until
the machine is traveling at the speed
the operator has commanded with the
Hystat Control (left).

Unsurpassed Maneuverability.
Power turn and counter-rotation capability
improve machine maneuverability and
productivity. On the D6K, power turns
are accomplished by slowing the speed
of one track versus the other, while
maintaining power to both tracks.

The Cat Hystat power turn feature also
enables the D6K to handle large loads
around corners or through hard spots
encountered when dozing. Power turn
capability improves machine mobility
in soft underfoot conditions and is
very effective for controlling machine
operation on side slopes. Counter-rotation
also provides easy, quick maneuvering
in tight areas or congested job sites.

6

The D6K features an electronically controlled hydrostatic drive system with independent
power and control of each track for fast acceleration, variable speed control, and on-the-go
direction changes.

Drive Train

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