Grinding Adjustment; Changing The Coffee Grinders; Operating Instructions; Dispensable Doses - La San Marco SM 92 INSTANT Original Instructions Manual

4.3 Grinding Adjustment

Instructions for a proper adjustment:
• Fill the hopper 4 with the coffee beans and open the gate 6.
• Grind a small amount of coffee to dispense one or more espresso coffees and check the dispensed
amount in the cup (the "ideal" serving is obtained with 6-8 grams of ground coffee per cup with a time of
25 to 35 seconds). There may be three different cases:
a) The coffee brews too slowly: the coffee is ground too fine (it should be coarser). To make a coarser grind,
press the release button 9 and turn the adjustment ring 10 clockwise.
b) The coffee brews too fast: the coffee is ground too coarse (it should be finer). To make a finer grind, press
the release button 9 and turn the adjustment ring 10 counterclockwise.
c) The coffee brews at the proper speed.

4.4 Changing the coffee grinders

When changing the coffee grinders, the adjusting ring nut must be inserted so that the hopper locking screw
(1) does not interfere with the grinders stop pin (2).
The proper grinder change procedure is as follows:
Loosen the hopper locking screw completely and pull out the hopper.
Loosen the three M5x12 grub screws located on the grinder support ring nut and remove the adjusting ring nut.
Unscrew the upper grinder support and remove it from its seat.
Replace the grinders and align the lower grinder with the three scraping teeth (the distance from these teeth
is 0,9 mm; to center the machine we suggest using a thickness gauge).
Clean the grinder seats and the thread of the upper grinder support accurately.
Screw the upper grinder support down to where the upper grinder grazes the lower one; this operation
should be carried out with the coffee grinder-dispenser in rotation in order to determine the exact point at
which the two grinders come into contact with each other.
Finally, insert the adjusting ring nut, making sure that the hopper locking screw is slightly ahead of the
grinder stop pin, in a counterclockwise direction, as shown in figure 1. Figure 2 shows a faulty installation of
the adjusting ring nut: the hopper locking screw (1) is after the grinder stop pin (2).
It is important to remember that in this case the hopper locking screw will not allow the grinder stop pin to
be passed in the grinder opening phase, which, since the grinders are already in contact with each other,
would make it impossible to grind the coffee to the proper degree of fineness, and the brewed coffee would
not flow out of the spout or would just drip out.
2
1
Fig. 1 - Proper installation.

5. operating instructions

5.1 Dispensable doses

5.a single dose (icon with one cup of coffee),
5.b double dose (icon with two cups of coffee)
5.c continuous dose (icon ∞).
20
2
Fig. 2 - Faulty installation
1