Adjusting The Ground Coffee Dose; Decommissioning; Information For Service Technicians; Replacement Of Burrs - Rancilio KRYO 65 Manual De Instrucciones

- Place a small quantity of coffee beans in the bean hopper
and close the lid;
- Check that the hopper locking slide is open ((Fig. 1 – 4)
pushed in)
- Grind a small quantity of coffee:
- Position the filter holder on the filter holder fork (Fig. 1 – 8),
then pull the dosing lever (Fig. 1 – 11) to dispense a dose of
ground coffee (this operation should be performed after
adjusting the grind setting See 7.3);
- Brew some coffee, checking the dispensing time, which should
be between 25 and 30 seconds for perfectly ground coffee;
- Check the appearance of the coffee and its taste, considering
that excessively course grounds produce light coloured coffee
without a crema, while grounds that are too fine result in
strong, dark coffee without a crema.
- If the coffee does not respond to your desired requirements,
adjust grind fineness by pressing the ring block button (Fig. 2 – 1)
and turning the regulation knob (Fig. 2 – 3) counter-clockwise for
a finer grind or clockwise for a coarser grind.
- Repeat the operation until you have obtained the desired
quality of coffee.
If using the same kind of coffee, further grinding adjustments
are not normally necessary, whereas if you change type of
coffee, a preliminary check is required.

7.3. Adjusting the ground coffee dose

The doses can be adjusted as follows:
- Turn the knob below the doser (Fig. 1 – 12) counter-clockwise
to increase the dose.

8. DECOMMISSIONING

8.1. Temporary
- Close the hopper and grind the coffee beans remaining
between the burrs.
- Turn off the switch and unplug the appliance from the power
source;
- Remove the ground coffee and any coffee beans remaining in
the bean hopper.
- Perform cleaning and maintenance operations;
- Coil up the supply cable and attach it to the machine using
adhesive tape;
- Cover the machine and place it in a dry place, sheltered from
bad weather and to which you have exclusive access.
10
8.2. Final
In addition to the operations of temporary decommissioning:
- Cut the power cable,
- Pack up the machine using cardboard or similar materials
and hand it over to specialized operators (authorized waste
disposal collectors or dealers in second-hand goods)
9. INFORMATION FOR SERVICE
TECHNICIANS

9.1. Replacement of burrs

Although manufactured in tempered steel, the burrs are subject
to wear and tear.
Their lifespan is influenced by the amount of coffee ground, its
hardness and degree of roasting, as well as the quantity and
purity of the coffee beans.
Small stones and various impurities have a marked abrasive
action which significantly reduces the lifespan of the burrs.
When grinding time becomes noticeably longer or the grind
becomes irregular, the burrs should be replaced as follows:
- Pull the hopper locking slide (Fig. 1 – 4);
- Start the grinder to grind the coffee remaining between the
burrs;
- Once grinding has finished, turn off the machine and unplug
from the power source;
- Empty the bean hopper (Fig. 1 – 3);
- Remove the regulation knob (Fig. 1 – 3);
- Turn the upper burr-holder (Fig. 4 – 1) counter-clockwise until
the head emerges completely;
- Unscrew the screws (Fig. 4 – 2) and remove the burrs (Fig. 4 – 3)
from the burr-holder:
- Carefully clean the burr supports, the burr-holder thread and
its housing;
- Position the new burrs in their holders and block them firmly
in place;
- Reassemble the machine, performing the previous steps in
reverse.
- Calibrate the new burrs.