Hyundai HX145 LCR, Manual

Page: 264 / 702

5-6
GROUP 3 AUTOMATIC DECELERATION SYSTEM
Main pump
Pilot pump
Engine
ECM
CAN #1
Main control valve
MCU
Cluster
Auto idle switch signal
Work
pressure
Travel
pressure
Pressure signal
Auto idle
pilot lamp
PS PS
Normal
CN-16
Emergency
CN-16A
CN-16B
CAN #2
Accel dial signal
Accel dial
When all of the work equipment control levers including swing and travel levers are at neutral for 4
seconds, MCU sends throttle command to ECM to reduce the engine speed to 1100 rpm. If the
control levers are at neutral for 1 minute, MCU reduces the engine speed to 1000 rpm. As the result of
reducing the engine speed, fuel consumption and noise are effectively cut down during non-operation
of the control levers.
When the auto idle pilot lamp is turned off by pressing the switch or any control lever is operated, the
reduced engine speed rises upto the speed before deceleration in a second.
1. WHEN AUTO IDLE PILOT LAMP ON
2. WHEN AUTO IDLE PILOT LAMP OFF
The engine speed can be set as desired using the accel dial, and even if the control levers are
neutral, the engine speed is not reduced.
侍
Auto idle function can be activated when accel dial position is over 4.
Time
Engine rpm
1100 rpm
4 sec
Lever
operation
Lever
neutral
Accel dial
set rpm
60 sec
Auto idle
rpm
Low idle
rpm
1000 rpm
1sec
145ZF5MS05
140L5MS01