AB-6209-U
6
Assembling the valve Model VY5303B with the actuator Model MY53X0A
IMPORTANT:
Do not assemble the valve with any other actuator.
The actuator can be horizontally rotated every 90 degrees to fit into the valve mounting position (4 mounting
positions). Make sure the positions of the actuator and the valve as follows, referring to Fig. 8:
- Actuator: Indicator/manual lever points at 100 (fully open position).
- Valve: An arrow on the top of the stem points at 100 (fully open position).
(Align the hole on the side of the stem with the tip at the joint surface as ‘a’ in Fig. 8 shows.)
Set the ACTIVAL (actuator and valve) in 100 % position when changing the mounting position. If the valve in
0 % position is assembled with the actuator in 100 % position, the actuator put torque on the closed valve, and
the gear of the actuator gets damaged.
Figure 9. Mounting the actuator onto the valve
Mounting procedure
1) Manually turn the indicator/manual lever of the actuator
to “100” with the lever release button pressed.
Figure 10. Indicator/manual lever at 100 % (fully open) position
2) Move the lock lever to right-end to unlock.
Figure 11. Unlocking the lock lever
3) Confirm that the arrow on the top of the valve stem points
at “100”. A hole on the side of the stem faces the same
direction at which the tip of the valve joint surface (with
the actuator) points when the valve position is fully open.
(See ‘a’ in Fig. 9.)
Figure 12. Valve stem pointing at 100 % (fully open) position
4) Assemble Model MY53X0A actuator with the valve.
Engage 4 pins of the actuator with the mating holes on
the valve joint surface.
5) Move the lock lever to left-end to lock. Locked position is
indicated with the groove as shown in Fig. 13.
Figure 13. Locking the lock lever
Tip
Joint surface
Stem
Unlock.
Actuator
Model MY53X0A
Valve
Model VY5303B
Lock lever
Lever release button
Stem
a
Indicator/
manual lever
Turn.
Press.
Locked position indication
Lock.
