Auto-Idle - Hitachi EX1900-5 Operator's Manual

Problem
Swing Does Not Work
Swing is Not Smooth
Problem
Auto-Idle Does Not Work
Engine Speed Control Lever
Does Not Function
TROUBLESHOOTING
HYDRAULIC SYSTEM
Cause
Swing motor
Pilot valve
Swing gear
Swing bearing
Lack of grease

AUTO-IDLE

Cause
Fuse
Auto-Idle switch
Pilot pressure switch
Failure of connector contact
Wiring harness
Engine speed control lever sensor
Controller
Controller on the engine
Failure of connector contact
Wiring harness
Engine speed control lever sensor
Controller on the engine
11-13
Solution
See your authorized dealer.
See your authorized dealer.
See your authorized dealer.
See your authorized dealer.
Apply grease.
Solution
Replace
Replace
Replace
Repair or replace
Repair or replace
Replace
Replace
See your authorized dealer
Repair or replace
Repair or replace
Replace
See your authorized dealer