Group 9 Attachment Flow Control System - Hyundai R480LC-9S Service Manual

GROUP 9 ATTACHMENT FLOW CONTROL SYSTEM

GROUP 9 ATTACHMENT FLOW CONTROL SYSTEM (CLUSTER TYPE 1)
Attachment pilot
pressure sensor
Work tool
Cluster
Work mode
pilot lamp
·
The system is used to control the pump delivery flow according to set of the work tool on the
cluster by the attachment flow EPPR valve.
Description
Flow level
Attach safety solenoid
Attach pressure solenoid
Attach conflux solenoid
※
Refer to the page 5-56 for the attachment kinds and max flow.
Main control valve
Arm 1
Option
Boom 2
Swing
Travel(RH)
Engine
ECM
Work mode switch signal
reduced 10 lpm each step
Arm 2
SOLENOID VALVE
Bucket
Boom 1
Travel(LH)
Main pump Pilot pump
Attachment
flow EPPR
Drive signal
Drive signal
MCU
Pressure signal
Accel dial signal
Work tool
Breaker
Max 7 step,
ON
OFF
OFF
5-22
Attachment
pressure
Attachment
conflux
Attachment
safety
CN-16A CN-16
Normal
CN-16B
Emergency
Accel dial
4809S5MS15
Crusher
Max 4 step,
reduced 20 lpm each step
ON
ON
ON/OFF