This collection contains the following 3 manuals:
Komatsu PC128US-2 shop manual
Komatsu PC128US-2 operation & maintenance manual
Komatsu 102 series engine shop manual. model S46D102E

Manual descriptions:
Manual 1:
Komatsu PC128US-2,PC138US-2,PC138USLC-2 shop manual.
This high quality factory manual (1028 pages) covers following models and serial number ranges
PC128US-2 s/n 5001-7730 AVANCE
PC128US-2 s/n 7731 AND UP GALEO
PC138US-2 s/n 4501 AND UP GALEO
PC138USLC-2 s/n 1001 AND UP GALEO

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.

Manual 2:
Komatsu 102 series engine shop manual. This is the factory manual,980 pages. High quality PDF. Active ribbon index

This manual covers following model engines.
4D102E-1
S4D102E-1
6D102E-1
S6D102E-1
SA6D102E-1
SAA4D102E-2
SAA6D102E-2.

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. Functions of components are also explained.

Manual 3:
Komatsu PC128US-2 and PC138USLC-2 operation and maintenance manual. This high quality (283 pages) manual covers following serial numbered machines.
PC128US-2 s/n 8269 and up
PC138USLC-2 s/n 1047 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.