This collection contains the following 2 manuals:
Komatsu PC138US-8 operation and maintenance manual
Komatsu PC138US-8 shop manual.

Manual descriptions

Komatsu PC138US-8 and PC138USLC-8 shop manual.
This is a high quality manual (747 pages).
SERIAL NUMBERS
PC138US- 20001 and up
PC138USLC- 20001 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 PC138US-8 and PC138USLC-8 operation and maintenance manual.
This is a high quality manual (375 pages).
SERIAL NUMBERS
PC138US-8 20001 and up
PC138USLC-8 20001 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.