Group 8 Variable Power Control System - Hyundai R480LC-9S Service Manual

GROUP 8 VARIABLE POWER CONTROL GROUP 8 VARIABLE POWER CONTROL SYSTEM
LH control RH control
lever
lever
BU
Boom up
pressure
·
The variable power control system controls the engine and pump mutual power according to RCV
lever stroke and pump load.
It makes fuel saving and smooth control at precise work.
Description
Power mode
Work mode
Pressure sensor
※ The variable power control function can be activated when the power mode is set to E mode.
Engine
ECM
MCU
Switch signal
Pressure signal
Shuttle
block
Power mode switch signal
SYSTEM (CLUSTER TYPE 1)
Work Travel
pressure pressure
Main control valve
P1
P2
pressure pressure
Main pump Pilot pump
Pump power
shift EPPR
Signal
Pressure signal
Pressure signal
Accel dial signal
E mode power
Cluster
Working condition
E
General (bucket)
Normal
5-21
CN-16A CN-16
Normal
CN-16B
Emergency
Accel dial
4809S5MS14