Case CX27B Excavator Service Manual

Table of Contents

Standard Specification and Maintenance
Hydraulic, Electrical and Components System
Disassembly and Assembly
Troubleshooting
Engine

Precautions for Service Work
( 1 ) Precautions for Safety
Read the safety precautions given at the beginning of this manual carefully and always mind safety in work.
(2) Preparation for Service Work
Preparation is necessary for accurate, efficient service work. Check the customer ledger file for the history of the engine.
• Preceding service date
• Period/operation hours after preceding service • Problems and actions in preceding service
• Replacement parts expected to be required for service • Recording form/check sheet required for service
(3) Preparation before Disassembly
• Prepare general tools, special service tools, measuring instruments, oil, grease, non-reusable parts, and parts expected to be required for replacement.
• When disassembling complicated portions, put match-marks and other marks at places not adversely affecting the function for easy reassembly.
(4) Precautions in Disassembly
• Each time a parts is removed, check the part installed state, deformation, damage, roughening, surface defect, etc.
• Arrange the removed parts orderly with clear distinction between those to be replaced and those to be used again.
• Parts to be used again shall be washed and cleaned sufficiently.
• Select especially clean locations and use clean tools for disassembly of hydraulic units such as the fuel injection pump.