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Engine – power train integration – Milton CAT 777F 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.

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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 Integrated Braking Control (IBC)
5 Transmission/Chassis Control (TCC)
6 Transmission
7 Wheel Sensor
8 Brakes
9 CAT Data Link
10 Cat Messenger

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