Komatsu PC228US-3 and PC228USLC-3 Excavator Service Manual

Product Overview

The Komatsu Excavator PC228US-3 and PC228USLC-3 Service Manual is a comprehensive guide that details the servicing procedures for these specific excavator models. With detailed instructions on disassembly, assembly, troubleshooting, and maintenance, this manual is an essential resource for ensuring efficient operation and addressing technical issues.

Key Features

• Detailed machine dimensions and performance specifications
• Comprehensive component weight and lubricant specification charts
• Step-by-step disassembly and assembly instructions
• Troubleshooting charts linking problems to potential causes
• Clear procedures for testing, adjusting, and troubleshooting components

Benefits

• Improves understanding of the excavator’s structure and function
• Facilitates precise troubleshooting and repairs
• Enhances safety during maintenance with detailed precaution guidelines
• Reduces downtime and ensures optimal machine performance

Usage Recommendations

• Utilize proper lifting equipment for disassembling heavy components
• Regularly check wire ropes and chains for damage to maintain safety
• Perform thorough checks before and after repairs to ensure proper adjustments
• Reference specific sections and illustrations for accurate maintenance procedures

Manual Extract

Testing and Adjusting Fuel Injection Timing

Testing:

• Remove the engine hood and the counterweight for rear chassis maintenance.
• Utilize a cranking tool to rotate the crankshaft until the timing pin enters the gear hole.
• Check the alignment of the timing pin with the timing pin pointer on the injection pump side.

Adjusting:

• If alignment issues occur, remove the fuel injector pump and rotate the camshaft.
• Ensure the timing pin meshes correctly with the timing pointer before re-installing the fuel injection pump.