Coffeemar
G-250
//
Coffee
MNP116M01GBV00
Date: 09/04/2013 Rev. 1
PAGE 19 OF 95
Fig. 21
BREWING ASSEMBLY
1.
Top outlet assembly
2.
Compressor piston clamp
3.
Spring
4.
Shaft
5.
O-Ring
6.
Lower shaft O-ring
7.
Compressor piston support
8.
O-Ring
9.
Sprinkler
10.
Screw
11.
Trilobular screw
12.
Brewing assembly
13.
Circlip
14.
Brewing chamber
assembly top outlet assembly
15.
Brewing chamber plunger
shaft
16.
Brewing chamber
17.
Brewing chamber puller
shaft
18.
O-Ring
19.
Brewing chamber washer
20.
Shaft holding plate
21.
Spring
22.
Plunger support
23.
Plunger holding rod
There are various aspects that have an influence on obtaining good espresso coffee
which should be taken into account when operating the machine. These factors are:
1.
The quality and type of product used (roasting level)
2.
Product quantity. This is defined by the doser and can be modified using the dosing
wheel. The machine is factory set for approximately 7 g. (0,0154 lb)
3.
The water temperature. The temperature of the water inside the boiler can be modified
by accessing machine programming (section programming working temperature). You
should take into account that the water temperature at the brewing assembly inlet is less
than the boiler water temperature that you program, due to contact with colder
components. It is recommended that, to make a good coffee, the water should enter the
brewing assembly at about
95 °C (203 °F).
4.
Grind level. If the ground coffee is too coarse, the water will go through the puck
without extracting the necessary coffee, while if it is excessively fine, the water will have
problems in going through the puck and the brewing time will be too long. The adequate
grinding level is that which results in the water going through the cups at a pressure of