SMC Networks XLA-2 Series Operation Manual page 18

8-3. Assembly Procedure
Step 1 Preparation
Clean cloth
Ethanol
Assemble parts eliminating
any dust or debris. Wipe off
dust with a clean cloth
soaked with ethanol. Blow
parts with clean air if
necessary. (Ensure there
are no fibers or dust.)
Step 3 Reassembly of valve seal 1 (No.1)
Groove for mounting the seal
Valve
Eliminate any dust within groove for mounting the
seal of the valve.
Step 2 Reassembly of bellows assembly
Apply a spanner to the
width across the flats of
the shaft to prevent it
from rotating.
Tightening torque of nut
(N･m)
Valve Tightening
size torque
XLA-16 0.9
-25 1.5
-40 2.5
-50
6.3
-63
-80 14
Mount the bellows assembly 2, valve seal 2, and washer.
Be sure to hold the valve when mounting the bellows assembly.
Securely mount the valve seal 2 into the seal mounting groove with caution not to
damage the seal.
Mount the nut and hold the shaft at the width across the flats with a spanner, and
tighten the nut with another spanner.
Secure the nut using the torque specified in the table.
Be sure to tighten the nut to the torque specified in the table as torques other than
that specified may cause a loose nut or damage to the valve.
Bonnet assembly
- 17 -
Note)
For XLA-16/25, mount the washer in the
orientation that the groove of the washer
faces to the valve seal 2.
Nut
Hold the valve
Valve
Width across flats
part of the shaft
Shaft Groove
for
mounting
the seal
Step 4 Reassembly of valve seal 1 (No.2)
2
4
Valve seal 1
Wipe off any dust on the surface of the valve seal 1, then
place the valve seal 1 in the seal mounting groove. Press
the seal into the groove in numerical order (press
diagonally) to fit the valve seal 1 into the groove. Do not
twist the valve seal 1.
Use dust-free gloves.
Washer
Valve seal 2
Bellows
assembly
Bonnet assembly
(Actuator part)
3
1
Bonnet assembly
XL-OMS0001-D