Douwe Egberts Cafitesse 50, Service Manual

Page: 61 / 106

Functions (dosing) - 5
Version 1.36
02/2004
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Dosing coil Dosing pump
Dosing system structure
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1
7
1. Lower sealing rings
2. Retaining screws
3. IR transmitter
4. IR receiver
5. B2 dosing coil
6. Upper sealing ring
7. Housing
8. Dosing tube
9. Floater
10. Tappet
11. Tappet ring
12. Ring carrier
13. Inlet valve
14. Bellow
15. Outlet valve
16. Outlet nozzle
The dosing pump is an intregrated part of
the coffee pack and can not be disassembled
or adjusted. It is a closed system to prevent
that air can affect the quality of the coffee
concentrate. The dosing coil assembly is available
as a single spare part. The sub-parts
are not separately available.
2. Functional description
The coffee concentrate is delivered in a 1.25 liter/ 42.3 fl oz bag in box. It is a closed system with an
intregrated dosing pump inside the tube.
The pump is operated by the B2 dosing coil. A current of 5.2 A is applied to the B2 dosing coil to
generate a magnetic field that generates the pumping action.