Figure 4. Type 3024S Actuator Handwheel Mounting (GA 1.21 and 1.31 Only).
TYPE 3024S
AIR-TO-CLOSE
TYPE 3024S
AIR-TO-OPEN
E0800
A
A
B
B
Design 3024S Actuator
Instruction Manual
Form 5421
June 1999
9
Actuator Size
Travel (mm)
A
B
Millimeters
GA 1.21
16
15
112
GA 1.31
16
5
112
GA 1.41
32
10
123
Inches
GA 1.21
16
1/2
4
−
1/2
GA 1.31
32
1/4
4
−
1/2
GA 1.41
32
1/2
5
Adjustable Travel Stops
The adjustable up travel stop (figure 8) for GA 1.21
and 1.31 actuators limits the actuator stroke in the
upward direction (limits retraction of the actuator
stem).
Loosen the hex nut (key 25) and turn the adjuster
(key 24) clockwise into the diaphragm case to move
the actuator stem downward or counter-clockwise to
allow the actuator stem to move upward. Since the
valve has push-down-to-close action, full opening
can be restricted. Check the actuator travel and then
tighten the hex nut (key 25).
For the GA 1.41 actuator up travel stop key numbers
referenced in the following steps are shown in figure
11.
1. Loosen the head screws (key 8)
2. Unscrew the cap screws and nuts (key 5 and 7)
and remove the cover plate (key 4)
3. Loosen the head screw (key 2) and turn the
bushing (key 3) clockwise into the adjustment nut
(key 1) to allow the actuator stem to move upward or
counter clockwise to shorten the actuator travel.
4. Check the actuator travel and then tighten the
head screw (key 2).
5. Assemble the cover plate (key 4) and tighten the
cap screws and nuts (key 5 and 7).
CAUTION
In the following adjustment
procedures, take care to avoid injury
while positioning components.
6. Adjust the cover plate (key 4) so that there is no
gap between the diaphragm case and the cover
plate.
7. Tighten the head screw (key 8).
