IM-P358-26
CH Issue 1
15
Fig. 12
3.5.2 Fitting the feedback potentiometer
If a potentiometer was requested at the point of order placement the AEL5952 it will be supplied
fitted as standard to the actuator. The potentiometer is located on a pre-moulded bracket.
If an AEL5953 or AEL5952 needs fitting, proceed as follows:
-
Insert the potentiometer (
19
) in to the actuator pre-moulded bracket (
23
).
-
Replace the locating washer (
20
) and firmly secure the nut (
21
).
-
Slide the pinion kit (
22
) onto the potentiometer ensuring the pinion is engaged into the teeth
of the switching plate.
-
Then insert the spring (
18
) to the housing bracket as shown in Figure 12.
Refer to Section 3.6.5 in order to connect the wires for the potentiometer.
The AEL56_ actuator
can be fitted to either a SPIRA-TROL or QL control valve with 30 mm
travel, or a KE / QL control valve with 50 mm travel. The difference between the two travels will
affect the way the feedback potentiometer works. The standard pinion (
22
) fitted to the AEL56_
actuator is for 50 mm travel. For 30 mm travel the standard pinion must be replaced with a smaller
pinion. If the actuator is supplied fitted to a valve, the correct pinion will already be fitted. If this
is not the case, the replacement pinion (for 30 mm travel) can be found under the actuator lid.
Pinion for 30 mm travel:
30 teeth, dia 12.70 mm.
Pinion for 50 mm travel:
50 teeth, dia 20.75 mm.
For setting the drive, run the actuator to its extended position and adjust the feedback
potentiometer shaft to its anti-clockwise stop by turning the shaft.
18
19
22
21
20
23
Содержание AEL5 Series
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