GEM 650TL Operating Instructions Manual page 37

18.4.2 Mounting the compressor (diaphragm size 25)
D
C
1. Place the compressor loosely on the actuator spindle.
2. Fit recesses D into guides C.
ð It must be possible to move the compressor freely
between the guides.
18.5 Mounting the diaphragm
18.5.1 Mounting the concave diaphragm
18.5.1.1 Diaphragm size 8 (push-fit diaphragm)
Diaphragm size 8
Push-fit diaphragm
Recess of compressor
Tab
1. Move the actuator A to the closed position.
2. Mount the compressor (see "Mounting the compressor").
3. Check if the compressor is fitted in the guides.
4. Place the diaphragm with the rubber pin in an inclined pos-
ition at the recess of the compressor.
www.gemu-group.com
D
C
Fastening spigot
ð Do not use greases or lubricants.
5. Manually screw/press the new diaphragm into the com-
pressor.
6. Align the weir of compressor and diaphragm in parallel.
7. Check the technical condition and function of the valve
prior to commissioning and during the total term of use.
8. Carry out checks regularly and determine the test intervals
in compliance with the conditions of use and/or the regu-
latory codes and provisions applicable for this application.
18.5.1.2 Diaphragm size 10 (threaded pin type diaphragm)
Recess of compressor
Diaphragm is not screwed in far enough.
▶ The closing force is transmitted directly onto the dia-
phragm pin and not via the compressor.
▶ Damage and early failure of the diaphragm.
▶ Leakage of the valve.
Remove the diaphragm.
●
Check the valve and diaphragm.
●
Remount the diaphragm.
●
37 / 42
18 Inspection and maintenance
Diaphragm boss
NOTICE
Diaphragm pin
GEMÜ 650TL