10
IMO-553 EN
Double Acting Actuators:
A. Back off one travel stop screw, leaving it partially
threaded in the end cap. Entirely remove the other
stop screw from the other end cap.
B. Open valve using air pressure. NOTE: Actuator will
leak due to removed travel stop.
C. Use the indicator pointer on top of actuator to
determine if valve is open to desired position. If not,
repeat steps 1-3, backing off or screwing in stop
screw to attain proper open position of valve.
D. Make sure O-ring is in proper position in counter-
sunk area on end cap and the washer is in place.
Tighten down nut to set stop position.
E. Thread in the other travel stop, making sure the
O-ring and washer are in the correct place. When the
travel stop will not thread any further, tighten nut to
set stop position.
F. The previous steps set the open travel stop. See
section 4.3.5 for instructions on setting the close
position stop.
Spring Return Actuators:
A. Back off one travel stop screw, leaving it partially
threaded in the end cap. Entirely remove the other
stop screw from the other end cap.
B. Open valve using air pressure. Note actuator will leak
due to removed travel stop.
C. Keeping air pressure applied to actuator, use the
indicator pointer on top of actuator to determine if
valve is open to desired position. If not, remove air
pressure and repeat steps 1-3, backing off or screw-
ing in stop screw to attain proper open position of
valve.
D. Make sure O-ring is in proper position in counter-
sunk area on end cap and the washer is in place.
Tighten down nut to set stop position.
E. Thread in the other travel stop, making sure the
Oring and washer are in the correct place. When the
travel stop will not thread any further, tighten nut to
set stop position.
F. The previous steps set the open travel stop. See
section 4.3.5 for instructions on setting the close
position stop.
5.
SAFETY LOCKOUT DEVICE
WARNING:
IF THE SERIAL NUMBER OF THE ACTUATOR IS 10136023 OR LOWER
THEN THE ACTUATOR MUST BE DISASSEMBLED AND THE OCTI-CAM
(1) MUST BE ROTATED, SEE FIGURE 9, BEFORE INSTALLING THE
SAFETY LOCKOUT KIT.
1. Removal of Stop Screws:
A. Remove from the Body both the existing Standard
Stop Screws (02) together with Nut (04), Washer (03)
and the O-ring (11), see (Figure 4).
B. Insert on the Adjustment Screw (227) and on the
Blocking Screw (226) the Special Nut (228), the
Washer (03) and the O-ring (11), see (Figure 21).
2. Assembly of Blocking Screw and Adjustment Screw:
A.
Before proceeding with the assembly of the
Adjustment and Blocking Screws in the body, check
the requested stop position. If the stop position
is fully close (0°) or fully open (90°), Figure 21.
Attention: when the screws are fitted,the actuator
position must be 0° ± 2° or 90° ± 2°.
Figure 20
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