Kobelco SK400-IV, SK400LC-IV Excavator Service Manual

TABLE OF CONTENTS

*General
Specification Operation And Controls (Refer To Operators Manual)
Location And Weight Of Components
*Systems
Hydraulic System Ysu15.
Swing Frame Ysu1s.
Travel System
Attachments
*Components
Hydraulic Pump
Control Valve
Other Valves
Hydraulic Motor
*Procedure
Maintenance Standard And Test Procedure
Preventive Maintenance (Refer To Operators Manual)
Working Standard
Standard Man-hour Table
Control System
Electrical System
Trouble Shooting
Swivel Joint
Hydraulic Cylinder
Reduction Unit
Engine

Preface Instructions

Read and understand all Warning plates and decal on the machine before Operating, Maintaining or Repairing this machine. The Manual has been written for the repair specialist. The serviceman or mechanic may be unfamiliar with many of the systems on this machine. This makes it important to use this manual and be caution when performing service work.

Please go carefully through the Manual of the Excavator before starting any repair work. Use proper lifting procedures when removing any components. Be careful when removing filler caps, breathers and plugs on the machine. Hold a rag over the cap or plug to prevent being sprayed or splashed by liquids under pressure. The danger is even greater if the machine has just been stopped because fluids can be hot.

Use the Manual of the Excavator as a reference book and source of information even if you are familiar with Excavator technology. Using the Workshop Manual, the experience construction machine mechanic can carry out any necessary repairs expertly.

Sections of the Manual

How to Index each manual section. The General of his Manual consists of 8 heading as shown above. Each section can easily referred to by indexes appended to the margin of the page as indicated on the right.

REPAIR and Parts

Carry out any necessary repair work as soon as possible. This reduces repair costs and increases the availability of your Excavator. When doing any work on the Excavator, always observe the instructions given in the Manual. Do not operate this machine unless you have read and understand the instructions in the manual. Improper machine operation is dangerous and could result in injury or death.