Milton CAT IT62H - Manual (Page 6)

• ACERT™ Technology maintains
engine performance, efficiency and
durability while reducing emissions
• Heavy duty components withstand
all operating conditions
• Strong, solid structures built to last
EPA TIER 3, EU STAGE III COMPLIANT
C7 ENGINE. ACERT Technology
combines proven systems with
innovative new technologies to
precisely deliver fuel to the combustion
chamber. It maintains engine
performance, efficiency and durability
while dramatically reducing emissions.
The Cat C7 with ACERT Technology
is a 7.2 L displacement, 6-cylinder,
electronically governed engine.
Electronic fuel injection is provided
through the well-proven Caterpillar
hydraulically actuated, electronically
controlled unit injection (HEUI) system.
A wastegate turbocharger, equipped
with a titanium wheel for improved
durability, combined with air-to-air
aftercooling (ATAAC) provides
consistent high horsepower with
increased altitude capability.
Electronic Controller. The engine is
governed by the ADEM™ A4
electronic control module. The
controller continually adjusts engine
output based on load demand using a
series of sensors located on the machine
and engine.
HEUI™ System. The HEUI™ system
has been at work in Cat engines across
the product line with a proven track
record of consistent, durable, reliable
performance.
Engine Block and Pistons. The gray,
cast iron engine block is made of the
same material as the cylinder heads.
Wall diameters are thicker than in
previous designs while adjustments
have been made to reduce sound levels
and increase rigidity. One-piece all-steel
pistons are housed within a wet,
replaceable cast iron cylinder liner
constructed of high-strength, heat-
treated castings. Steel-forged
connecting rods are larger in diameter
and are connected to the crankshaft with
two bolts.
Cylinder Head. The cylinder head is a
one-piece design that incorporates
cross-flow design to facilitate air
movement. This allows the engine to
breathe cooler, cleaner air with less
effort.
RADIATOR. Brazed aluminum
construction provides a stronger joint
for maximum durability and resistance
to leaks. The 6-fins-per-inch, square-
wave core design decreases the chance
of blockage and plugging.
POWERSHIFT TRANSMISSION. The
IT62H continues to use heavy-duty
powershift transmission technology
proven on previous models and
currently used up through the largest
wheel loader built by Caterpillar –
the 994F.
The planetary powershift transmission
features heavy-duty components to
handle the toughest applications. Built-
in electronic controls enhance shift
quality, productivity and durability.
Control Throttle Shifting. Control
Throttle Shifting regulates engine speed
during high-energy directional changes
for smoother shifting and longer
component life.
Electronic Clutch Pressure Control.
Electronic Clutch Pressure Control
(ECPC) system modulates clutches
individually to improve shift quality,
component life and operator comfort.
Adjustment is simplified with all
solenoid valves externally mounted on
top of the transmission housing.
AXLES. The IT62H axles are designed
by Caterpillar for durability in all
operating conditions. The front axle is
rigidly mounted to the frame to support
the weight of the wheel loader and
withstand internal torque loads as well
as external forces encountered
throughout operation.
The rear axle is designed to allow ± 13°
oscillation. All four wheels remain on
the ground over uneven terrain
providing excellent stability and
traction.
6
Built Strong And Tough
DURABILITY