Disassembly And Assembly; How To Read This Manual - Komatsu Galeo PC138US-8 Shop Manual

SEN02709-00

How to read this manual

1. Removal and installation of assemblies
Special tools
Special tools which are deemed neces-
q
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.
Also the following information is described
q
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.
Circle mark Q in sketch column:
3)
The sketch of the special tool is pre-
q
sented in the section of "Sketches of
special tools".
Part No. of special tools starting with
q
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.
2
- :
1
Removal
The "Removal" section contains procedures
q
and precautions for implementing the work,
know how and the amount of oil or coolant to
be drained.
Various symbols used in the "Removal" section
q
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
Except where otherwise instructed, installation
q
of parts is done in the reverse order of removal.
Instructions and precautions for installing parts
q
are shown with [*1] mark in the "Removal" sec-
tion, identifying which step the instructions are
intended for.
Marks shown in the "Installation" section stand
q
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
Various special tools are illustrated for the con-
q
venience of local manufacture.

50 Disassembly and assembly

PC138US, USLC-8