4.2.2 Output drive type A
Application
.
For rising, non-rotating valve stem.
.
Capable of withstanding thrust
Design
Output drive type A as separate unit (figure 6):
.
The internal thread of the stem nut must match the thread of the valve
stem.
.
If not ordered explicitly with thread, the stem nut is supplied unbored or
with a pilot bore.
Finish machining the stem nut
Only required for stem nut if supplied unbored or with a pilot bore.
1. Remove spigot ring (3) from output drive type.
2. Take off stem nut (1) together with axial needle roller and cage assembly
(2) and axial bearing washers (4).
3. Remove axial needle roller and cage assembly and axial bearing wash-
ers from stem nut.
4. Drill and bore stem nut and cut thread.
When fixing in the chuck, make sure stem nut runs true!
5. Clean the machined stem nut.
6. Apply Lithium soap EP multi-purpose grease to axial needle roller and
cage assembly and axial bearing washers, then place them on stem nut.
7. Re-insert stem nut with axial bearings into output drive type. Ensure that
dogs or toothing are placed correctly in the slots of the hollow shaft.
8. Screw in spigot ring until it is firm against the shoulder.
9. Press in Lithium soap EP multi-purpose grease on mineral oil base at the
grease nipple with a grease gun (for quantities, please refer to table 2).
Grease quantities for bearing of output drive A:
13
Multi-turn actuator SAExC 07.1 – SAExC 16.1/SARExC 07.1 – SARExC 16.1
Non-Intrusive
Operation instructions
with actuator controls AUMATIC ACExC 01.1 Profibus DP
1
3
2
2
4
4
Figure 6
1
Stem nut
3
Spigot ring
2
Axial needle roller and cage assembly 4
Axial bearing washer
Output drive
A 07.2
A 10.2
A 14.2
A 16.2
Qty
1)
1.5 g
2 g
3 g
5 g
1) For grease with density
r
= 0.9 kg/dm³
Table 2
