To maintain the solenoid drain valve:
1. Unscrew the hexagon nut.
2. Carefully lift off the coil with an appropriate tool (e.g. screwdriver).
3. Unscrew the solenoid armature tube.
4. Remove the o-ring from the housing upper part and replace with a new
o-ring.
5. Replace the following parts in the solenoid armature tube:
n Solenoid armature upper part
n Solenoid armature spring
n Spring washer
n Solenoid armature lower part
6. Screw in the solenoid armature tube.
7. Unscrew the hexagon head screws
8. Remove the housing upper part.
9. Replace the following parts in the housing:
n Membrane springs
n Membrane socket
n Membrane
n Housing lower part O-ring
10. Place the housing cover in position.
11. Screw in the hexagon head screws.
12. Fit the coil
13. Screw the hexagon nut tight.
4.1.9
Servicing pneumatic drain valves
Personnel:
n
Service personnel
Protective equipment:
n
Protective gloves
n
Work clothing
n
Safety boots
The spare parts kit with part number 063633 is required for
this maintenance work.
MAINTENANCE
WP5000 Basic WA 41013675 en GB 20190916 | 47
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