Step 6
Step 7
Apply 0.3MPa of air pressure to the pilot port S. Place
the needle seat or S valve seal assembly, and tighten
bolt c to fix them. When tightening bolt c, first tighten
manually until the O ring is compressed, then perform
extra tightening.
Wipe off the dust from the external seal O ring surface
and the mounting surface of the body O ring. Place the
O ring on the O ring mounting surface.
Step 8
Apply 0.2MPa of air pressure to the pilot port M (for main pumping). Tighten bolt b
in numerical order to assemble the body and the bonnet assembly. When
tightening bolt b, tighten manually until the O ring is compressed, then perform
extra tightening in diagonal order.
For models with heater, tighten bolt a to mount the heater to the body. Insert the
cover.
Pilot port S
Bolt C
S valve seal
Ass'y
or
Needle seat
Tightening torque of bolt C
N
・
m
Model
Tightening
torque
XLD-25
0.36±0.1
Other than
XLD-25
0.63±0.1
O ring
Mounting
surface of
O ring
Body
1
Bolt b
Bolt a
Heater
Cover
Pilot port M
Body
Bonnet
assembly
2
3
4
Tightening torque
of bolt b
N
・
m
Valve
Size
Tightening
Torque
XLD-25
1.5
-40
2.5
-50
6
-63
6
-80
15
-100
20
-160
102
Tightening torque of
bolt a
N
・
m
Valve
Size
Tightening
Torque
All size
0.3
- 16 -
XL*****-OMI0011-E
