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15. Replace the non-return valve
Warning!
All non-return valves must be replaced at once.
Failure to observe this instruction can result in an increased germ load in the
drinking water and thus pose a health or mortality risk.
☞
The non-return valve forms part of the guide socket (a).
15.1 Remove the fitting (see
15.2 Replace the guide socket (a).
15.3 When necessary, replace the O-rings of the guide socket (b).
15.4 Reassemble in reverse order.
16. Replace the aerator
16.1 Remove the aerator, using an open-ended wrench.
16.2 Replace the aerator.
17. Replace the mixer insert
17.1 Close the water supply.
17.2 Disconnect the fitting.
17.3 Remove the stopper (a), using a screwdriver.
17.4 Loosen the grub screw (b) and remove it from the adapter (c), using a hexagonal
wrench.
17.5 Remove the lever cap (d).
17.6 Remove the housing cover (e), using a special wrench (f, see
17.7 Loosen the threaded ring (h), using an open-ended wrench.
17.8 Replace the mixer insert (g).
17.9 Tighten the threaded ring to a torque of 8 Nm, using an open-ended wrench.
17.10 Set the temperature limits (see
8
chapter
13.).
chapter
12.).
chapter
19.).
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