Removing The Brewer Filter Screen; Zuma Brewer Screens - 3 Types Available; Screen Assembly Extractor Tool - VKI Technologies Zuma Brewer Operation And Service Manual

Removing the Brewer Filter Screen

The Zuma brewer is equipped with a filter screen than can be easily removed when it requires cleaning or
replacing. The standard Zuma brewer uses a 40 micron brewer screen, however optional 51 micron or a
stainless steel screen (approximately 37 micron) are also available from VKI.
Zuma Brewer Screens – 3 Types Available
VKI currently offers 3 types of filter screens for the Zuma brewer. The following describes each of the
screens (identified by their VKI part number):
K310306S - a polyester screen that filters out particles that are larger than 40 microns. This is
the standard Zuma brewer screen and is ideal for the majority of installations.
K310032S - a polyester screen that filters out particles that are larger than 51 microns. This
screen may last longer before it requires cleaning, however, it does allow larger particles
into the cup, and depending on the grind used, may leave a little sediment at the bottom of
the cup.
K310297S – a stainless steel screen that filters out particles that are larger than 37 microns.
Lime/calcium will build up on this screen more quickly because of the very fine stainless steel
mesh. As a result, this screen requires more frequent cleaning than the other two screens
offered. In some cases (particularly where slack develops on the screen and the brew
chamber is adjusted too tightly), the screen will fold slightly as the wiper moves across it. After
repeated use, this may cause cracks or tears in the mesh due to metal fatigue.

Screen Assembly Extractor Tool

The screen assembly on the Zuma brewer can be easily removed for cleaning or replacement by
using this special screen extraction tool (VKI p/n - K023029SS). It is inserted through the brewer
spout and is used to push the screen out of the top of the brewer cylinder. Using any other type of
tool to remove the filter screen may damage the brewer, and is therefore not recommended.
Zuma Brewer - Operation & Service Guide
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