Hitachi ZX48U-3, ZX52U-3 Excavator Technical Repair Manual

Model: Excavator ZX48U-3, ZX52U-3
Hitachi ZX48U-3, ZX52U-3 Mini Excavator Service Repair Manual:
Technical Manual : Vol. No.TADJ90-EN – 356 Pages
Operators Manual : Vol. No.EM1NE-EN – 246 Pages
Electrical and Hydraulic Diagrams – 16 Pages
Parts Catalog Manual – 471 Pages
SI Units (International System of Units) are used in those manual.
Hitachi ZX48U-3, ZX52U-3 Manual Composition

SECTION 1 GENERAL

Group 1 Specifications
Group 2 Component Layout
Group 3 Component Specifications

SECTION 2 SYSTEM

Group 1 Control System
Group 2 Hydraulic System
Group 3 Electrical System

SECTION 3 COMPONENT OPERATION

Group 1 Pump Device
Group 2 Revolution Sensing Valve
Group 3 Swing Valve
Group 4 Control Valve
Group 5 Pilot Valve
Group 6 Travel Device
Group 7 Others (Upperstructure)
Group 8 Others (Undercarriage)

SECTION 4 OPERATIONAL PERFORMANCE TEST

Group 1 Introduction
Group 2 Standard
Group 3 Engine Test
Group 4 Excavator Test
Group 5 Component Test
Group 6 Adjustment

SECTION 5 TROUBLESHOOTING

Group 1 Diagnosing Procedure
Group 2 Troubleshooting A
Group 3 Troubleshooting B
Group 4 Troubleshooting C
Group 5 Electrical System Inspection
repair this machine. The machine specification and description according to destination may be explained on this manual.
Be sure to thoroughly read this manual for correct product information and service procedures.

Information included in the Technical Manual: Technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.

Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble

procedures.

Information included in the Engine Manual: Technical information needed for redelivery and delivery and maintenance and repair of the machine, operation and activation of all devices and systems, troubleshooting and assemble / disassemble procedure