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 B-1) from mounting flange.
.
Take off stem nut (80.3) together with thrust bearing (80.01) and thrust
bearing races (80.02).
.
Remove thrust bearing and thrust bearing races 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 ball bearing grease to thrust bearing and races, then place them on
stem nut.
.
Re-insert stem nut with thrust 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,
quantities see table, into the grease nipple with a grease gun:
Protection tube for rising valve stem
.
Protection tubes may be supplied loose. Seal thread with hemp, Teflon
tape or thread sealing material.
.
Screw protection tube (1) into thread (figure B-2) and tighten it firmly.
.
For corrosion protection KS/ KX, push down the seal (2) to the housing.
.
Check, whether cap (3) is available and without damage.
9
Multi-turn actuators SA 07.1 – SA 16.1
Operation instructions with actuator controls AMB 01.1/AMB 02.1
Figure B-2: Protection tube for rising valve stem
3
1
2
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 grease with a density ρ = 0.9 kg/dm³
Table 4: Grease quantities for output drive A
Figure B-1
80.3
80.2
Output drive type A
Stem nut
80.01/ 80.02
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