AUMA VARIOMATIC SARV 10.1 Operation Instructions Manual page 7

Operation instructions
The output drive types B1, B2, B3 or B4 (figure B) are delivered with bore
and keyway (usually according to ISO 5210).
Figure B
Output drive type B 1 / B 2
plug sleeve
.
.
Check if bore and keyway match input shaft of valve/gearbox.
.
Thoroughly degrease mounting faces of multi-turn actuator and valve /
.
gearbox.
Apply a small quantity of grease to input shaft of valve / gearbox.
Place actuator on valve / gearbox and fasten. Fasten bolts (at least
quality 8.8, refer to table 1) evenly crosswise.
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 A) with help of wrench or similar tool
from the 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 race and 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 a few squirts of grease into the grease nipple with a grease gun.
Table 1
Multi-turn actuators SARV 07.1 - SARV 10.1
Output drive type B 3 / B 4
bore with keyway
8.8 T (Nm)
A
M 6 10
M 8 25
M 10 50
M 12 87
M 16 220
AUMA VARIOMATIC
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