Gemü R690 Originalmontageanleitung Seite 11

1. Insert the actuator membrane assembly
manually into actuator base 16 from
above through bush 17 and push it
down until actuator membrane 14
abuts actuator base 16. The actuator
membrane assembly comprises
actuator spindle 15 including dowel
pin 30 and adapter 31, hexagon nut 21,
washer 9, upper and lower membrane
plate 6, actuator membrane 14 and
two sealing washers 22 (for diaphragm
sizes 40 and 50 distance piece 28 and
O-ring 27).
2. Take care that the hole patterns of
actuator membrane 14 and actuator
base 16 are aligned.
3. Assemble the actuator as described in
chapter 5.3, points 1-9.
5.3 Assembling the actuator
1. Put on actuator top 10, take care that
the hole patterns of actuator top 10,
actuator membrane 14 and actuator
base 16 are aligned.
2. Clamp actuator in a press.
CAUTION
Applied pressure too high!
Risk of breakage of actuator
top 10!
Only use minimum required
pressure.
3. Bolt together diagonally actuator top 10
and actuator base 16 with bolts 12 and
washers 13.
Important:
The bolts 12 between actuator
top 10 and actuator base 16
are inserted from below (for
diaphragm sizes 25 and 40)
or from above (for diaphragm
size 50).
Diaphragm size
25
40
50
4. Slowly release the press.
5. Put protective caps 29 onto bolts 12.
6. Insert new O-ring 44.
7. Screw in transparent cap 46.
8. Reinsert loose compressor 3 and
washer 47.
9. Reconnect control medium.
11 / 12
Tightening torque
6 Nm
15 Nm
21 Nm
R690