AUMA SAR 07.1 - SAR 30.1 - Page 12

Finish machining of stem nut (output drive type A):
The output drive flange does not have to be removed from the actuator.
.
Remove spigot ring (80.2, figure 5) from mounting flange.
.
Take off stem nut (80.3) together with axial needle roller and cage assem-
bly (80.01) and axial bearing washers (80.02).
.
Remove axial needle roller and cage assembly and axial bearing washers
from stem nut.
.
Drill and bore stem nut and cut thread.
When fixing in the chuck, make sure stem nut runs true!
.
Clean the machined stem nut.
.
Apply Lithium soap EP multi-purpose grease toaxial needle roller and
cage assembly and axial bearing washers, then place them on stem nut.
.
Re-insert stem nut with axial bearings into the mounting flange. Ensure
that dogs are placed correctly in the slots of the hollow shaft.
.
Screw in spigot ring until it is firm against the shoulder.
.
Press Lithium soap EP multi-purpose grease on mineral oil base into the
grease nipple with a grease gun (for quantities, please refer to table):
Protection tube for rising valve stem
.
Seal thread with hemp, Teflon tape, or thread sealing material.
.
Screw protection tube (1) into thread (figure 6) and tighten it firmly.
.
Push down the sealing (2) to the housing.
.
Check whether cap (3) is available and without damage.
12
Multi-turn actuators SA 07.1 – SA 30.1/SAR 07.1 – SAR 30.1
with actuator controls AUMA MATIC AM 01.1/AM 02.1 Operation instructions
Output
drive
A 07.2 A 10.2 A 14.2 A 16.2 A 25.2 A 30.2 A 35.2 A 40.2 A 48.2
Qty
1)
1.5 g 2 g 3 g 5 g 10 g 14 g 20 g 25 g 30 g
1) For greases with a density ρ = 0.9 kg/dm³
Table 2: Grease quantities for output drive type A
3
1
2
Figure 5
80.3
80.2
Output drive type A
Stem nut
80.01/80.02
Figure 6: Protection tube for rising valve stem