Komatsu PC300-7E0, PC300LC-7EO, PC350-7E0, PC350LC-7E0 Excavator Repair Service Manual

Table of Contents

Komatsu PC300-7E0, PC300LC-7EO, PC350-7E0, PC350LC-7E0 Manual

Main sections and selected subjects identified in the source documentation:

• Manuals: Shop Manual
• 01 GENERAL
• 10 STRUCTURE AND FUNCTION
• 20 TESTING AND ADJUSTING
• 30 DISASSEMBLY AND ASSEMBLY
• 90 OTHERS
• Composition of shop manual
• ease of understanding, the manual is divided into the following sections.
• FOREWORD
• This section explains the safety and basic information.
• GENERAL
• This section explains the specifications of the machine for the Excavator.
• STRUCTURE AND FUNCTION, MAINTENANCE STANDARD
• This section explains the structure, function, and maintenance standard values of each component.
• TESTING AND ADJUSTING
• Standard value table
• Troubleshooting
• DISASSEMBLY AND ASSEMBLY Excavator
• OTHERS (chassis volume)/Repair and replacement of parts (engine volume)
• Chassis volume
• This section gives hydraulic circuit diagrams and electrical circuit diagrams.
• Engine volume
• This section explains the method of reproducing, repairing, and replacing parts.
• Handling during cylinder cut-out operation
• This operation is used to find out a cylinder which does not output power normally (or, combustion in it is abnormal).
• Followings are the potential causes.
• Leakage from the cylinder head gasket Defective injection from the injector Failure on the piston, piston ring or cylinder liner
• Failure on the valve mechanism (valve operating system)
• Failure in the electrical system
• a See the section of Special functions of machine monitor when turning on the cylinder cut-out operation