
Komatsu Shop Manual & Repair Guide: Komatsu PC400-7,PC450-7 Excavator Service Parts Catalogue Manual
Are you looking for a Komatsu Shop Manual or Service Manual for your excavator or loader? This technical guide includes high-resolution wiring diagrams and field assembly specifications essential for professional repairs and Dash-series system troubleshooting.
Searching for the official Komatsu PC400-7,PC450-7 Excavator Service Parts Catalogue Manual to fix hydraulic drift, engine smoke, or electrical sensor faults? This factory Shop Manual is the primary source for certified mechanics needing step-by-step disassembly, field assembly procedures, and precise Komatsu tolerances to restore machine productivity and fuel efficiency.- Official Brand Category: KOMATSU SERVICE & SHOP MANUALS
- Model Coverage: Full technical shop data for the Komatsu PC400-7,PC450-7 Excavator Service Parts Catalogue Manual. Optimized for Dash (-7, -8, -10, -11) series, including Tier 4 Final engine specs, Komtrax monitoring system data, and high-pressure hydraulic settings.
- Document Specs: Original Shop Manual, Searchable PDF, High-Resolution Wiring Diagrams.
Detailed Shop Content:
- Operational Performance Tests: Diagnostic Testing
- Hydraulic Systems: PC/LS Valve Schematics
- Electrical: Sensor & Controller Diagrams
- Engine Service: Valve Clearances & Torque
- Maintenance: Consumables & Intervals
- Undercarriage: Track & Final Drive Specs
- Troubleshooting: Symptom-Based Guides
- Safety: Factory Service Standards
Don't risk your components with unofficial data. Use the correct factory Shop Manual. Browse our Komatsu department for more technical resources.
Komatsu PC400-7,PC450-7 Excavator Service Parts Catalogue Manual
This collection contains the following products: first of all PC400-7 and PC450-7 service manual
PC450LC-7E0 parts list Komatsu PC400-7,PC450-7 operators manual

Table of Contents
01 GENERAL 01-1
10 STRUCTURE AND FUNCTION 10-1
20 TESTING AND ADJUSTING 20-1
30 DISASSEMBLY AND ASSEMBLY 30-1
90 OTHERS 90-1
This mode handles large production by providing powerful and speedy operation, and achieves economical efficiency by
substantial reduction of fuel consumption. Komatsu PC400-7 & PC450-7 Excavator Service Repair Manual
ECONOMY MODE
Operation speed equal to that of the Active mode can be achieved when handling light duty operation while also keeping fuel consumption low.
Electronically Controlled High Power Engine Installed A 246kW (330HP) Komatsu SAA6D125E engine, is the largest in its class.
Komatsu PC400-7,PC450-7 Excavator Service Parts Catalogue Manual
Comfortable Cab
another New PC400-7’s cab volume is increased by 14%, offering an exceptionally comfortable operating environment. The large
cab enables full flat reclining of the seat back with headrest.
Pressurized Cab
The optional air conditioner, air filter and a higher internal air pressure (6.0 mm Aq 0.2″ in Aq) prevent external dust
from entering the cab.
Low Noise Design
Noise level is remarkably reduced, not only engine noise but also swing and hydraulic relief noise.
Low Vibration with Cab Damper Mounting PC400-7 uses a new, improved cab damper mount system
that incorporates a longer stroke and the addition of a spring.