4.3.1.1. Stem Nut: Finish Machining - AUMA SAEx 07.2 Manual

Assembly
Information

4.3.1.1. Stem nut: finish machining

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Figure 7: Design of output drive type A
[1] Output mounting flange
[2] Stem nut with dog coupling
[3] Valve stem
To adapt the actuators to available output drive types A with flanges FA10 and FA14
(year of manufacture: 2009 and earlier), an adapter is required. The adapter can be
ordered from AUMA.
This working step is only required if stem nut is supplied unbored or with pilot
bore.
Figure 8: Output drive type A
[1] Stem nut
[2] Axial needle roller bearing
[2.1] Axial bearing washer
[2.2] Axial needle roller and cage assembly
[3] Spigot ring
1. Remove spigot ring [3] from output drive.
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].
SAEx 07.2 SAEx 16.2 / SAREx 07.2 SAREx 16.2
AUMA MATIC AMExC 01.1