Hyundai Mini Excavator R30z 9ak Service Repair Manual Pdf

Page 1

CONTENTS SECTION 1 GENERAL Group 1 Safety Hints ---------------------------------------------------------------------------------------------------- 1-1 Group 2 Specifications ------------------------------------------------------------------------------------------------- 1-9

SECTION 2 STRUCTURE AND FUNCTION Group Group Group Group Group Group

1 2 3 4 5 6

Pump Device -------------------------------------------------------------------------------------------------Main Control Valve ----------------------------------------------------------------------------------------Swing Device ------------------------------------------------------------------------------------------------Travel Device -------------------------------------------------------------------------------------------------RCV Lever ----------------------------------------------------------------------------------------------------RCV Pedal -----------------------------------------------------------------------------------------------------

2-1 2-6 2-35 2-44 2-55 2-67

SECTION 3 HYDRAULIC SYSTEM Group Group Group Group Group

1 2 3 4 5

Hydraulic Circuit --------------------------------------------------------------------------------------------Main Circuit ---------------------------------------------------------------------------------------------------Pilot Circuit ----------------------------------------------------------------------------------------------------Single Operation -------------------------------------------------------------------------------------------Combined Operation -------------------------------------------------------------------------------------

3-1 3-2 3-5 3-10 3-22

SECTION 4 ELECTRICAL SYSTEM Group Group Group Group Group

1 2 3 4 5

Component Location ------------------------------------------------------------------------------------Monitoring system ----------------------------------------------------------------------------------------Electrical Circuit --------------------------------------------------------------------------------------------Electrical Component Specification ------------------------------------------------------------Connectors -----------------------------------------------------------------------------------------------------

4-1 4-3 4-8 4-24 4-31

SECTION 5 TROUBLESHOOTING Group 1 Before Troubleshooting --------------------------------------------------------------------------------- 5-1 Group 2 Hydraulic and Mechanical System -------------------------------------------------------------- 5-4 Group 3 Electrical System ------------------------------------------------------------------------------------------- 5-24


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