4.3.1.2. Multi-Turn Actuator (With Output Drive Type A): Mount To Valve - AUMA SAEx 07.2 Operation Manual

Assembly

4.3.1.2. Multi-turn actuator (with output drive type A): mount to valve

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2. Remove stem nut [1] together with axial needle roller bearings [2].
3. Remove axial bearing washers [2.1] and axial needle roller and cage assemblies
[2.2] from stem nut [1].
4. Drill and bore stem nut [1] and cut thread.
Information: When fixing in the chuck, make sure stem nut runs true!
5. Clean the machined stem nut [1].
6. Apply sufficient suitable EP multi-purpose grease to axial needle roller and cage
assemblies [2.2] and axial bearing washers [2.1], ensuring that all hollow spaces
are filled with grease.
7. Place greased axial needle roller and cage assemblies [2.2] and axial bearing
washers [2.1] onto stem nut [1].
8. Re-insert stem nut [1] with bearings [2] into output drive.
Information: Ensure that dogs or splines are placed correctly in the keyway of the
hollow shaft.
9. Screw in spigot ring [3] until it is firm against the shoulder.
Figure 8: Assembly of output drive type A
[1] Valve stem
[2] Output drive type A
[3] Screws to actuator
[4] Valve flange
[5] Screws to output drive
1. If the output drive type A is already mounted to the multi-turn actuator: Remove
screws [3] and remove output drive type A [2].
2. Check if the flange of output drive type A matches the valve flange [4].
3. Apply a small quantity of grease to the valve stem [1].
4. Place output drive type A on valve stem and turn until it is flush on the valve flange.
5. Turn output drive type A until alignment of the mounting holes.
6. Screw in fastening screws [5], however do not completely tighten.
7. Fit multi-turn actuator on the valve stem so that the stem nut dogs engage into the
output drive sleeve.
The flanges are flush with each other if properly engaged.
SAEx 07.2 SAEx 16.2 / SAREx 07.2 SAREx 16.2