8
Mechanical settings
8.1
Setting basic grinder clearance
Turn grinding-disk on block, turn central screw clockwise
until a slight contact of the running grinder disks is audible.
Fit grinding-disk scale
Turn grinding-disks 4 scale steps backwards (1 scale step
equals 0.05 mm) which gives the basic clearance of 0.2 mm
Fit disc 33.1324.7000 in such a way that its cam prevents
further screwing down.
Set scale with the number 0 towards the upper marking and
stick it on.
Setting standard grinding-discs (“Rossi” 33.0693.000:
Basic settings for left grinder (espresso): 1.5
Basic setting right grinder (Café creme): 3.5
Basic setting for 1 grinder only: 2.6
Settings for Ditting grinding-disks 33 .9462.6000:
Grinding degree is 1 degree finer than standard.
8.2
Adjusting pressure reducer
Turn off external water tap
Open stopcock on water filter, depressurize and close cock
again.
Open front panel, remove front protective cover.
Remove blind nipple from the plug-in connector of the
espresso pump
Connect adjusting tool 33.2730.0000, to the plug-in
connection of the espresso pump. Hold loose end into the
drip tray.
Turn on external water-tap again.
(Attention, water will run out of the setting-tool).
Adjust pressure reducer by turning the set-screw to 0,23
+/- 0,01 MPa (2,3 +/- 0,1 bar) flowing pressure.
Static pressure can be measured with the blind nipple of
the setting-tool, Setpoint 0,26 ± 0,036 MPa (2,36 ± 0,36
bar) turn of external water-tap.
Dismantle setting-tool, replace blind nipple, turn on
external water-tap again.
36
Service manual WMF bistro! Edition 08/2011
WMF bistro! Service manual
