This collection contains the following 3 manuals:
Komatsu 68E thru 88E engine service manual
Komatsu PC15R-8 operation and maintenance manual
Komatsu pc15R-8 workshop manual.

Manual descriptions:

Komatsu pc15R-8 workshop manual.
This is a high quality 355 page workshop service manual.
PC15R-8 serial number 10001 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 68E-88E series engine service manual.
212 Pages.
This manual covers following model engines.
2D68E-3D68E-3D74E-3D78AE-3D82AE-3D82E-3D84E-3D88E-4D82E-4D84E
4D88E-S3D84E-S4D84E
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 expensive mistakes. All
specifications and tolerances are listed. Function of
components and systems are also explained.

Komatsu PC15R-8 operation and maintenance manual.
Pages 208
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.