GV 640 Service Manual 81
For internal use only
Installation
The installation of the valve is carried out in reverse order.
Positioning the armature
1. Bring the marked points into position.
2. Press the valve with the spring into the coil
again until it engages.
8.4 Water diverter
The water diverter controls the flow of water of the three spray levels.
It comprises a drive motor with a cam disk, pulse generator and the sealing washer.
When the dishwasher is switched on the engine is activated with a triac. The cam disk is installed on
the motor shaft.
The disc activates a switch (pulse generator)
which sends off pulses of various lengths and
intervals to the electronics unit. If this unit recog-
nises the basis setting, the water diverter will have
been initialised.
1 Sealing washer
2Seal
3 Pulse generator (switch)
4 Drive motor
5 Toothed wheel with a cam disk
6 Toothed wheel
The sealing washer is turned in dependence of
activation. Here different hole sizes determine the
flow of water to each spray level.
The arrangement of the 5 openings in the sealing washer enables several levels to be activated simul-
taneously or in alternation.
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