Cat says its upgraded D9T bulldozer offers
enhanced operator safety, comfort and convenience,
refined performance and increased
productivity. The 110,000-lb (49
900-kg) operating-weight dozer is powered
by a Cat C18 ACERT engine rated at 410
net hp (306 kW). For improved comfort
and efficiency, a low-effort electronic dozer
control handle gives the operator control of
all dozer functions with one hand. For
added safety, a Dynamic Inclination
Monitor provides readouts of the tractor’s
pitch angle and side-to-side slope, and an
operator-presence system locks out the
power train and hydraulic system to avoid
machine movement when the operator is
entering or leaving the cab, assisted by
redesigned steps, handles and guardrails.
An available visibility package includes
mirrors on the lift cylinders and a ROPSmounted
camera system with a 7-in. (18-
cm) color monitor near the rear view mirror.
New for the D9T is the Enhanced Auto
Shift (EAS) system, which provides operator-
selectable forward and reverse speeds
similar to an automatic transmission.
Other refinements include a new radiator
design that is durable and corrosion-resistant.
A new air-to-oil hydraulic cooler results
in lower hydraulic-oil temperatures for
extended component life, and the hydraulically
driven, variable-speed demand fan provides
optimal cooling while using less power.
A new “OK-to-Start” system electronically
checks powertrain, engine coolant and
engine oil systems. The VIMS 3G (Vital
Information Management System), which
can use both cellular and satellite networks,
monitors the machine’s health and working
status in real time and provides machine
history for off-board analysis.
www.cat.com
As featured in Womp 2011 Vol 10 - www.womp-int.com
