-26-
Fig. 34
Fig. 35
• Check that compressed air is completely released. Then remove the four Nylock Bolts M6
[12]
from the
Chamber Base Ass’y
[11]
and Chamber Cover
[4]
to remove the Chamber Cover
[4]
.
NOTE: If it is difficult to remove the Chamber Base Ass’y [11], temporarily tighten at least two
Nylock Bolts M6 [12] so that the threaded portion is shown 3.5 mm to 6.5 mm as shown in
Fig. 34. Mount the reduction valve set and feed compressed air to remove the Chamber
Base Ass’y [11].
• Push the Piston Ass'y
[16]
from Blade Guide (A)
[86]
side toward the Cylinder
[5]
side to remove it from
the Cylinder
[5]
.
• Remove the Retaining Ring D52
[19]
from the Nose
[18]
and pull out Bearing Holder
[20]
and Pin Wheel
[28]
.
• Remove the Ball Bearing 6000VV
[21]
from the Pin Wheel
[28]
.
• Remove the Needle Roller D3
[31]
from the Pin Wheel
[28]
. Then remove the Position Detector
[23]
.
• Remove the Needle Roller D4.5
[24]
from the Pin Wheel
[28]
. (See Fig. 35.)
2. Reassembly
Reverse the disassembly procedure to reassemble. Note the following points:
• Use the specified tightening torques.
• Insert the Needle Roller D4.5
[24]
included in the brand-new Piston Ass'y
[16]
into the Pin Wheel
[28]
.
• Mount the Pin Wheel
[28]
to the Position Detector
[23]
so that the end surface side of Pin (A)
[34]
is
aligned with the notch of the Position Detector
[23]
as shown in Fig. 36.
[24]
[28]
Temporarily tighten the Nylock Bolts
M6
[12]
so that the threaded portion
is shown 3.5 to 6.5 mm.
Reduction valve set