Leser 4401 Instrucciones De Servicio página 21

Operating Instructions
Procedures (only A)
1. Break the seal.
2. Remove the lever cover.
3. Secure the spindle against twisting.
4. Raise the pressure screw.
5. Remove the bonnet.
6. Remove the spring.
7. Remove the spindle with the guide
and disc.
8. Clean the seat, disc, and body.
9. Reinstall the spindle with the guide
and disc.
10. Insert a new spring.
11. Put the bonnet back on.
12. Secure the spindle against twisting.
13. Tighten the spring and adjust
the pressure screw to the desired set
pressure. Observe the permissible
adjustment range of the spring when
doing so.
– The set pressure becomes higher
when the pressure screw is turned
to the right. The spring is put under
more tension.
– The set pressure becomes lower
when the pressure screw is turned to
the left. The tension on the spring is
relieved.
14. Check the set pressure.
15. Install the lever cover.
16. Pull the venting lever to the middle so
that the lifting fork engages under the
coupling.
17. Have the safety valve resealed by an
authorised centre.
» The spring has now been replaced.
EN
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