Komatsu Galeo PC138US-8, Shop Manual

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SEN02709-00 50 Disassembly and assembly
2
PC138US, USLC-8
How to read this manual 1
1. Removal and installation of assemblies
Special tools
q
Special tools which are deemed neces-
sary for removal or installation of parts are
described as
A1 ,••• X1 etc. and their part
names, part numbers and quantities are
described in the special tool list.
q
Also the following information is described
in the special tool list.
1) Necessity
t t t t : Special tools that cannot be substi-
tuted and should always be used
(installed).
q q q q : Special tools that will be useful if avail-
able and are substitutable with com-
mercially available tools.
2) Distinction of new and existing special
tools
N : Tools newly developed for this
model. They respectively have a
new part number.
R : Tools with upgraded part numbers.
They are remodeled from already
available tools for other models.
Blank: Tools already available for other
models. They can be used without
any modification.
3) Circle mark
Q
in sketch column:
q
The sketch of the special tool is pre-
sented in the section of "Sketches of
special tools".
q
Part No. of special tools starting with
79 T-
- :
means that they can not be supplied
from Komatsu in Japan (i.e. locally
made parts ).
a
General tools that are necessary for
removal or installation are described as
[1], [2]•••etc. and their part names, part
numbers and quantities are not described.
Removal
q
The "Removal" section contains procedures
and precautions for implementing the work,
know how and the amount of oil or coolant to
be drained.
q
Various symbols used in the "Removal" section
are explained and listed below.
k
: Precautions related to safety in execution
of work.
a
: This mark gives guidance or precautions when
doing the procedure.
[*1] : This mark shows that there are instructions or
precautions for installing parts.
6
: This mark shows the amount of oil or coolant
to be drained.
4
: Weight of part or component
Installation
q
Except where otherwise instructed, installation
of parts is done in the reverse order of removal.
q
Instructions and precautions for installing parts
are shown with [*1] mark in the "Removal" sec-
tion, identifying which step the instructions are
intended for.
q
Marks shown in the "Installation" section stand
for the following.
k
: Precautions related to safety in execution
of work.
a
: This mark gives guidance or precautions when
doing the procedure.
2
: Type of coating material
3
: Tightening torque
5
: Quantity of oil or coolant to be added
Sketches of special tools
q
Various special tools are illustrated for the con-
venience of local manufacture.
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