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19 Inspection and maintenance
19.1 Spare parts
A
1
Fig. 13: Spare parts
Item
A
Actuator
1
Valve body
2
Diaphragm
18
Bolt
19
Washer
20
Nut
19.2 Removing the actuator
1. Move the actuator A to the open position.
2. Loosen the fastening elements between actuator A and
body 1 diagonally and remove them.
3. Lift actuator A off valve body 1.
4. Move the actuator A to the closed position.
5. Clean all parts of contamination (do not damage parts dur-
ing cleaning).
6. Check parts for potential damage, replace if necessary
(only use genuine parts from GEMÜ).
19.3 Removing the diaphragm
1. Remove actuator A (see chapter "Removing the actuator").
2. Unscrew the diaphragm.
ð Please note: Depending on the version, the com-
pressor may fall out.
3. Clean all parts of contamination (do not damage parts dur-
ing cleaning).
4. Check parts for potential damage, replace if necessary
(only use genuine parts from GEMÜ).
GEMÜ 649 eSyDrive
20
19
2
18
Name
Order description
9649
K600
600...M
649...S30...
19.4 Mounting the compressor
1. Place the compressor loosely on the actuator spindle.
2. Fit recesses D into guides C.
ð The compressor must be able to be moved freely between
the guides.
19.5 Mounting the diaphragm
19.5.1 Mounting the convex diaphragm
▶ Fit the diaphragms suitable for the product (suitable for
medium, medium concentration, temperature and pres-
sure). The diaphragm is a wearing part. Check the tech-
nical condition and function of the product before com-
missioning and during the whole term of use. Carry out
checks regularly and determine the check intervals in ac-
cordance with the conditions of use and/or the regulatory
codes and provisions applicable for this application.
▶ If the diaphragm is not screwed into the adapter far
enough, the closing force is transmitted directly onto the
diaphragm pin and not via the compressor. This will
cause damage and early failure of the diaphragm and
leakage of the product. If the diaphragm is screwed in too
far, perfect sealing at the valve seat will not be achieved.
The function of the product is no longer ensured.
▶ Incorrectly mounted diaphragms cause the product leak-
age and emission of medium. In this case, remove the
diaphragms, check the complete valve and diaphragms
and reassemble again proceeding as described above.
40 / 48
D
D
C
C
NOTICE
NOTICE
NOTICE
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