SRT45 Off-Highway Truck
3-25
Safety, Operation and Maintenance Manual
wheel in both directions to avoid
accidental steering during bleed down.
Improper steering control unit repair or
hose connections can cause sudden
and forceful steering wheel movement
when engine is started.Keep hands off
steering wheel when starting engine.
3.13 Transmission
3.13.1 CEC2 Shift System
The transmission of the truck adopts the
CEC2 (2nd generation commercial electronic
control) shift system. CEC2 is a well designed
computer-controlled automatic shift system,
which integrates functions including automatic
gear-shift, misoperation screening, diagnostic
capabilities, etc., so as to effectively reduce
the fatigue of the driver and make the driver
work safely, easily and simply by focusing on
the road conditions.
Automatic Gear-shift: CEC2 can automatically
select appropriate gear position according
to throttle position, engine speed and truck
speed. Do not move the gear shift handle
frequently during driving. The truck speed can
be controlled through controlling oil supplied
to throttle position by foot pedal. CEC2 can
select economy mode and power mode.
So as to meet the different requirements of
customers.
Reverse Inhibit: Prevents gear selection if
engine is operating at more than 20% throttle.
Hoist interlock pressure switch - The ECU will
shift the transmission from Reverse to Neutral
if the body control lever is moved to the 'Raise'
position.When the body is held in the 'Raise'
position,will prevent to engage reverse gear.
Body Up Interlock: When the body is raised, the
CEC2 system will only allow the transmission
to operate in first gear. This feature is only
operational in the normal automatic driving
mode, either power or economy. It is not
Controls and Operating