3
4.2 Inspection
▪
Ball [Fig.4.4]
Measure the outside diameter, and if it is outside the usable
range, replace the ball.
Usable range of ball
S
Ø
56.7 - Sø64.9 mm
▪
Valve seat [Fig.4.5]
Measure the dimension shown at left, and if it is outside the
usable range, replace the seat.
Usable range of valve seat
B
□
C, B
□
N, B
□
E
B
□
V, B
□
H, B
□
S, B
□
H/T
B
□
T
5.0 - 12.5 mm
1.7 - 4.1 mm
▪
O ring (other than PTFE)
If O ring is worn out or cracked, replace it.
4.3 Installation
For installation, see [Exploded View] on the separate sheet and install in the reverse order of
disassembly.
Tightening torque for manifold retainer bolts
25 N•m
<NOTE>
▪
Make sure there is no dust on the seal surface and the seal
is not damaged.
▪
Replace the PTFE O ring regardless of its condition.
▪
Match the convex and concave parts of the protector.
[Fig.4.6]
Fig.4.6
Fig.4.5
Fig.4.4