Komatsu PC400-6, PC400LC-6, PC450-6, PC450LC-6 Excavator Shop Manual (SEBM014508)

SEBM014508 is the 2004 shop manual for the PC400-6 and PC450-6 family, which are 40 to 45-tonne excavators used in quarries and heavy earthworks.

Fits

PC400-6 and PC400LC-6 from serial 32001, and PC450-6 and PC450LC-6 from serial 12001. The engine listed is the SA6D125-2. Later machines with the SAA6D125E-2 also need our supplement SEBM023600, and engine overhaul is in SMEE1250K0.

Quick facts

• Manual Number: SEBM014508 (2004)
• Models: PC400-6, LC-6, PC450-6, LC-6
• Serials: 32001 / 12001 and up
• Engine: SA6D125-2
• Supplement: SEBM023600
• Format: PDF, 841 pages

What's in it

After the general specs and fluids, section 10 covers structure and function for the engine-related parts, swing circle and machinery, travel motor, final drive, undercarriage, hydraulic pump, control valve, PPC and EPC valves, work equipment and electrical. Section 20 covers the standard values, pressure checks, adjustments and troubleshooting.

Section 30 covers removal, installation and rebuild of the main components. Section 40 is the maintenance standards with wear limits, and section 90 has the circuit diagrams.

Big excavators like these wear their swing, travel and undercarriage parts hard. The wear limits help you plan a rebuild before a failure parks the machine.

Table of contents

• 01 General - specs, weight table, fuel, coolant and lubricants
• 10 Structure and function - engine related parts, swing circle and machinery, travel motor, final drive, undercarriage, hydraulic pump, control valve, PPC and EPC valves, work equipment, electrical
• 20 Testing and adjusting - standard values, pressure checks, adjustments and troubleshooting
• 30 Disassembly and assembly - removal, installation and rebuild of the main components
• 40 Maintenance standard - wear limits and repair standards for each part
• 90 Others - hydraulic and electrical circuit diagrams

Before you buy

Check your serial plate. If your machine has the SAA6D125E-2 engine, get the supplement as well.

PDF, 841 pages, English. Mostly scanned pages, so text search is limited. Download link straight after checkout. We're an independent seller with no link to Komatsu.