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Foreword
How to read the shop manual
Volumes
Shop manuals are issued as a guide to carrying out
repairs. They are divided as follows:
Chassis volume: Issued for every machine model
Engine volume:
Issued for each engine series
Electrical volume:
Attachments volume:
These various volumes are designed to avoid dupli-
cating the same information. Therefore, to deal with
all repairs for any model , it is necessary that chas-
sis, engine, electrical and attachment volumes be
available.
Distribution and updating
Any additions, amendments or other changes will be
sent to KOMATSU distributors. Get the most up-to-
date information before you start any work.
Filing method
1. See the page number on the bottom of the page.
File the pages in correct order.
2. Following examples show how to read the page
number.
Example 1 (Chassis volume):
10 - 3
Item number
(10. Structure and Function)
Consecutive page number for
each item.
Example 2 (Engine volume):
12 - 5
Unit number (1. Engine)
Item number
(2. Testing and Adjusting)
Consecutive page number for
each item.
3. Additional pages:
Additional pages are indi-
cated by a hyphen (–) and number after the
page number. File as in the example.
Example:
10-4
10-4-1
Added pages
10-4-2
10-5
00-6
Each issued as one
volume to cover all
models
20-203
12-203-1
12-203-2
12-204
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Revised edition mark
W he n a m an ua l i s r ev i se d, an e di t i on m a r k
((1)(2)(3)....) is recorded on the bottom of the pages.
Revisions
Revised pages are shown in the List of revised
pages next to the Contents page.
Symbols
So that the shop manual can be of ample practical
use, important safety and quality portions are
marked with the following symbols.
Symbol
Item
k
Special safety precautions
Safety
are necessary when
performing the work.
Special technical
precautions or other
a
Caution
precautions for preserving
standards are necessary
when performing the work.
Weight of parts of systems.
Caution necessary when
4
Weight
selecting hoisting wire, or
when working posture is
important, etc.
3
Places that require special
Tightening
attention for the tightening
torque
torque during assembly.
2
Places to be coated with
Coat
adhesives and lubricants,
etc.
5
Places where oil, water or
Oil, water
fuel must be added, and
the capacity.
Places where oil or water
6
Drain
must be drained, and
quantity to be drained.
General
Remarks
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