This collection contains the following 3 manuals:
Komatsu PC400-6,PC450-6 machine shop manual
Komatsu S6D125-2,SA6D125-2,SAA6d125-2 engine shop manual
Komatsu PC400LC-6lm and PC400HD-6LM operation & maintenance manual
Manual descriptions:
Komatsu S6D125-2,SA6D125-2,SAA6d125-2 engine shop manual.
Pages 392
This factory engine service manual has easy-to-read text sections with top quality diagrams, pictures and illustrations. The step by step instructions show you how to complete any repair or overhaul, correctly and efficiently, saving time and avoiding cockups. All specifications and tolerances are listed. Function of components and systems are also explained.

Komatsu PC400LC-6lm and PC400HD-6LM operation & maintenance manual. This is the factory manual. 288 pages.
MODEL SERIAL NUMBERS
PC400LC-6LM A85001 and up
PC400HD-6LM A85001 and up
This operation and maintenance manual provides essential
information with regard to the operation and maintenance
of this machine. Careful handling, correct periodical
inspections and maintenance. This manual should always
be present with machine.

Komatsu PC400-6,PC400LC-6 and PC450-6,PC450LC-6 shop manual.
This is a factory shop manual. 892 pages.
Machine model and serial numbers
PC400-6 s/n 32001 AND UP
PC400LC-6 s/n 32001 and up
PC450-6 s/n 12001 and up
PC450LC-6 s/n 12001 and up
This factory service manual has easy-to-read text sections
with top quality diagrams, pictures and illustrations. The
step by step instructions show you how to fault find or
complete any repair or overhaul, correctly and efficiently,
saving time and avoiding costly mistakes. All specifications
and tolerances are listed. Functions of components and
systems are also explained.