This collection contains the following 3 manuals:

Komatsu PC300-6 and PC350-6 operation and maintenance manual. This high quality 285 page manual covers following machine models and serial numbers.
PC300-6 and PC300LC-6 s/n-33001 and up
PC350-6 and PC350LC-6 s/n-12001 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 PC300-6,PC300LC-6,PC350-6,PC350LC-6 shop manual. This high quality 809 page workshop manual covers following machine model and serial number ranges.
PC300-6 33001 and up
PC300LC-6 33001 and up
PC350-6 12001 and up
PC350LC-6 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.

Komatsu 108-2 series diesel engine shop manual.
Models covered by this manual
S6D108-2
SA6D108-2
SAA6D108-2
This is a high quality 211 page factory manual.

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. The majority of Komatsu machine shop
manuals do not include a full engine workshop manual. Most
have limited engine information. This engine shop manual is
required for complete knowledge of this engine, systems,
components, functions, specifications, tolerances and
methodology of disassembly and assembly.