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50 Disassembly and assembly
Disassembly
Preparatory items
1.
Preparation before disassembly
1)
Preparation of work stand
q
Prepare a work stand for disassembly
and assembly of the travel motor.
q
Use a work stand so strong that you
can disassemble, assemble, and
place the internal parts of the travel
motor on it.
q
Spread a rubber or vinyl sheet on the
work stand.
2)
Prepare the tools and materials described
in the previous pages.
2.
General precautions for work
k
The disassembled internal parts are
oiled and slippery.
Accordingly, take care of handling
them not to injure yourself or damage
them by dropping them.
k
Flammable material such as kerosene
is used to wash the parts. Since it is
highly inflammable and can cause a
fire or a burn, handle it with extreme
care.
1)
Before disassembling, well understand the
inspection items and detected troubles,
and then work according to the given
working procedure.
2)
Since each part is manufactured very pre-
cisely, take care of handling them.
Do not hit the parts against each other or
drop them.
3)
Never remove the parts forcibly or prying
them. If you do so, the parts may have
burrs and may be broken, and that can
make assembly impossible and lower the
performance.
4)
If the parts are left as disassembled, they
may be rusted by moisture and dirt.
When leaving them disassembled, be
sure to take measures to protect them
from rusting and dirt.
5)
When disassembling, put match marks on
the matching portions of the parts.
6)
During the disassembly, arrange and store
the removed parts neatly to protect them
against damage and loss.
7)
Once you remove the seals, do not reuse
them but replace with new ones.
8)
A typical model is used for the illustrations
in the following explanation. Even if your
machine is partly different from the
machine indicated for those illustrations,
its assembling procedure is the same.
PC130-8
a For the part Nos. not shown in the figures, see
"Component parts".
1.
Washing of travel motor assembly
1)
Install two eyebolts [8] to the mounting bolt
holes of spindle (2).
a Install two eyebolts [8] to symmetrical
positions.
2)
Sling the travel motor assembly and carry
it to the washing tank.
4
Travel motor assembly: 150 kg
3)
Using a brush, wash the travel motor
assembly with a brush thoroughly.
a Wash the area between hub (1) and
spindle (2) (mounting portion of the
floating seal) thoroughly since there is
dirt and sand there.
SEN04128-01
13
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