Komatsu PC400-7 & PC450-7 Excavator Service Repair Manual

Description

Komatsu PC400-7 and PC450-7 Service Repair Manuals

A Komatsu Service Manual equipment heavy manual is a detailed technical guide that provides instructions for the maintenance, repair, troubleshooting, and servicing of heavy machinery, ensuring optimal performance and extended equipment life.

Service Repair Manual Covers:
Disassembly and Assembly
Testing and Adjusting
Troubleshooting
Systems Operation
Torque Specifications

Brakes
Clutch
Cab
Cooling System
Diesel Fuel System
Differential Lock
Electrical System
Engine
Fenders, Fuel Tank & Platform
Final Drive
Front System
Front-Wheel Drive
Hydraulic System
Main Drive Bevel Gears And Differential
Park Brake
Power Steering System
Power Take-Off
Rear Axle
Steering Gear
Transmission

Komatsu PC400-7 & PC450-7 Excavator Service Repair Manual

ACTIVE MODE
This mode handles large production by providing powerful
and speedy operation, and achieves economic 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.
High-power and low fuel consumption are achieved by
optimizing fuel injection via electronic control.
Maximum Digging Force among the 40-ton Class
With the addition of a one-touch power max. function
(operation time of 8.5 seconds), the digging force has been
further increased.
Maximum arm crowd force (ISO):
198 kN (20.2t) 214 kN (21.8t)
Maximum bucket digging force (ISO):
252 kN (25.7t) 275 kN (28.0t)

Komatsu PC400-7 & PC450-7 Excavator Service Repair Manual

Comfortable Cab
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 longer stroke and the addition of a spring.
The new cab damper mounting combined with a
strengthened left and right side deck aids vibration reduction
at the operator’s seat.
Vibration at floor is reduced from 120 dB (VL) to 115 dB (VL).

Komatsu PC400-7 and PC450-7 Service Repair Manuals