IM-P713-01 CTLS Issue 1
14
AEL7 Series Electric actuator
3.4 Hand wheel Assembly (6 – 20 kN)
The 6 – 20 kN versions of AEL7 have an externally mounted hand wheel with operating clutch for manual
adjustment of the actuator when the electrical power supply and control signals are isolated.
The hand wheel is shipped inside the actuator. In order to assemble the hand wheel to the actuator:
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Remove the actuator cover (Section 4.2)
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Cut the retaining tie taking care not to damage any of the internal wiring
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Carefully dispose of the tie
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Remove the lock nut from the actuator base plate and carefully slide the hand wheel over the hand wheel
shaft, taking care to align the drive pin or key
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Replace and tighten the lock nut
Caution
Always take note of the operating direction of the hand wheel or hand crank in relation to
the required direction of spindle movement. Failure to observe the correct direction of
operation could result in damage to actuator or process.
3.5 Coupling the Actuator to a Valve
The operator is responsible for ensuring that safe systems of operation and practice are implemented and
maintained. Only competent persons must be allowed to be couple the AEL7 Series actuator to a valve, and
these persons must be familiar with, and comply with the applicable health and safety standards or guidelines.
Caution
It is possible to damage the force dependent switches by applying excessive load by use of
the hand wheel or hand crank
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Some valve and actuator combinations will require additional valve adapters and linkage kits.
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Consult TI-P713-02 ensure you have the correct valve and actuator for your application.
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Remove the actuator retaining nut from the valve and place the mounting flange over the valve bonnet
thread.
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Refit the actuator retaining nut and tighten (50 Nm for M34 or 100 Nm for M50).
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Remove the actuator pillar nuts. Using the hand wheel or hand crank, retract the actuator spindle by
approximately 25% of valve stroke to ensure that the valve is coupled with the plug away from the seat
in order to prevent valve damage.
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Untighten the four screws and remove the valve adapter locking plate, anti-rotation plate and valve
adapter bush from the actuator.
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Place the locking plate and the anti-rotation plate over the valve stem.
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Set the valve stem lock nut at the correct Thread Engagement dimension "A" (Fig. 4 and Tables 3 – 5)
for the relevant valve and actuator combination.
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Lift the actuator over the valve stem and place onto the mounting flange and loosely refit the actuator
pillar nuts raise the valve plug to the actuator until the threaded bush meets the actuator coupling.
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