NOTICE!
Cleaning the sealing surfaces
Leaks can lead to damage or can impair correct functioning
of the compressed air system.
– Carefully remove any gasket residue with an appropriate
tool.
–
Clean the sealing surfaces carefully before fitting new
gaskets or o-rings.
To maintain the cooling water solenoid valve:
1. Unscrew the circlip.
2. Lift of
f the external thread cap.
3. Carefully lift of
f the coil with an appropriate tool (e.g. screwdriver).
4. Remove the o-ring from the solenoid armature tube.
5. Unscrew the fixing screws for the solenoid armature tube.
6. Remove the solenoid armature tube.
7. Remove the o-ring from the housing upper part and replace with a new
o-ring.
8. Remove the solenoid armature spring and solenoid armature from the
solenoid armature tube and replace with new parts.
9. Position the solenoid armature tube at the installation location.
10. Screw in and tighten the solenoid armature tube fixing screws.
11. Mark the screw-in depth of the compensating jet (e.g. with a waterproof
pen) and unscrew the compensating jet.
12. Remove the o-ring from the compensating jet and replace with new o-
rings.
13. Screw in the compensating jet as far as the marking made before
unscrewing.
14. Unscrew the hexagon socket head screws in the housing upper part
and detach the housing upper part.
15. Replace the following parts in the housing:
n Membrane spring
n Diaphragm
n O-rings in housing lower part
16. Fit the housing upper part.
17. Screw in the hexagon socket head screws in the housing upper part.
18. Position a new o-ring on the solenoid armature tube.
19. Fit the coil
20. Fit the external thread cap.
21. Screw on and tighten the lock nut.
MAINTENANCE
WP5000 Basic WA 41013675 en GB 20190916 | 51
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