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5.4.4 Disassembling the Air-Motor
NOTE.
The air motor is hard to adjust when it is re-assembled. Accordingly, if a failure is
found in the air motor, ask the dealer to repair it.
[Disassembling the air motor by expert engineer]
(1) Separating
Separate the air motor from the lower pump by referring to the procedure for separating the
air motor from the lower pump.
(2) Disassembling the Cylinder
① Put the air motor on a flat surface (status shown in
Fig.13) and cause the internal piston to jump out to such a
position as shown in the figure.
② In this status, fix the body on a vise so that it may not
overturn.
③ Loosen the screw to remove the grip.
④ Loosen all the head bolts and pull out the trip rod fixed
with lock nuts in the head bolts.
⑤ Remove the lock nuts (2 pieces), and the trip rod will be
free to fall down.
⑥ Remove all the bolts (12 pieces) in the periphery that fix
the cylinder and the body, and pull out the cylinder.
(3) Disassembling the Reversing valve
At
disassembly,
the
Disassemble the reversing valve with a good understanding
of its structure through observation.
CAUTION
- For disassembling the air motor,
experimental
special
tools
Those who do not have such
knowledge and tools must not
disassemble the air motor but
should ask the dealer for repair.
- When
disassembling
motor, be sure to put on gloves to
prevent the fingers and hands
from hurting themselves.
① Raise the piston slightly from the body
to facilitate the disassembly work.
(Fig.13)
② Install a lock nut on the trip rod temporarily to make it easy to hold the valve. When it
is pulled up vigorously, the reversing valve body will jump up. Conversely, when it is
pushed down, the reversing valve body will reverse suddenly. Understand this structure
and take care not to have the fingers nipped.
③ Remove the anti-loosing wire of the valve stem and unscrew the valve stem to remove it.
strong
spring
may
knowledge
and
are
required.
the
air
9
Fig.13
jump
out.
Fig.14
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