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Engine – power train integration – Milton CAT 773F User Manual

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Cat Data Link. Electronically integrates
machine computer systems to optimize
overall power train performance,
increase reliability and component life,
and reduce operating costs. All control
modules communicate via the Cat Data
Link and work together as an integrated
system to maximize production
efficiency and extend component life.

Transmission Chassis Control (TCC).
TCC uses electronically transferred
engine rpm data to execute shifts at
preset points for optimum performance,
efficiency and clutch life.

Electronic Technician (Cat ET). Cat ET
service tool provides service technicians
with easy access to stored diagnostic
data through the Cat Data Link to
simplify problem diagnosis and increase
machine availability.

Controlled Throttle Shifting. Regulates
engine rpm during shifting to reduce
power train stress and clutch wear
by controlling engine speed, torque
converter lock-up, and transmission
clutch engagement for smoother shifts
and longer component life.

Directional Shift Management.
Regulates engine speed during directional
shifts to prevent damage caused by
high-speed directional changes.

Neutral Coast Inhibitor. Prevents the
transmission from shifting to neutral
at speeds above 6.5 km/h (4 mph),
protecting the transmission from
operating with insufficient lubrication.

Body-up Shift Limiter. Prevents the
transmission from shifting above a
pre-programmed gear without the body
being fully lowered. This function is
programmable via Cat Electronic
Technician (Cat ET) and Messenger
or Advisor.

Body-up Reverse Neutralizer.
Automatically shifts the transmission
to neutral if the hoist lever is activated
while the transmission is shifted
in reverse.

Overspeed Protection. The transmission
control electronically senses engine
conditions and automatically up-shifts
one gear to prevent overspeeding.
If overspeeding occurs in the top gear,
the lock-up clutch is disengaged, and
the brakes are applied.

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This system electronically combines critical power train components to work together more
intelligently to optimize overall truck performance.

Engine – Power Train Integration

ET

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1 Engine Control Module (ECM)
2 Sensors
3 Electronic Unit Injector (EUI)
4 Automatic Retarder Control (ARC)
and Traction Control System (TCS)
5 Transmission/Chassis Control (TCC)
6 Transmission
7 Wheel Sensor
8 Brakes
9 CAT Data Link
10 Cat Messenger

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