Related Manuals for VKI Technologies Zuma Brewer
Summary of Contents for VKI Technologies Zuma Brewer
- Page 1 Zuma Brewer Operation and Service Manual Page 1 of 8 November 24, 2000 p/n – N016352...
- Page 2 Over time, coffee oils and fine grounds (the size of dust particles) as well as minerals in the water will accumulate on the brewer screen assembly. This accumulation will decrease the porosity of the screen, resulting in brewer flooding. The Zuma brewer screen must be kept clean to prevent this from occurring.
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Page 3: Brew Chamber Tension Adjustment
ZUMA BREWER - OPERATION & SERVICE MANUAL The following describes some of the general maintenance procedures that must be followed to keep the Zuma brewer functioning properly at all times. All of these procedures are simple and can be done in just minutes. - Page 4 ZUMA BREWER SCREEN ASSEMBLY MAINTENANCE Screen Assembly Extractor Tool The screen assembly on the Zuma brewer can be very easily removed for cleaning or replacement with a special screen extraction tool to properly do this. The part number of the Zuma Screen Extractor Tool is K023029.
- Page 5 ZUMA BREWER - OPERATION & SERVICE MANUAL Cleaning the Brewer Screen Assembly The Zuma brewer filter screen needs to be cleaned periodically to allow liquid to easily flow through it. Over time, coffee dust, oils and minerals from the water will accumulate on the screen making it less porous, eventually resulting in brewer flooding.
- Page 6 ZUMA BREWER - OPERATION & SERVICE MANUAL Installing the Screen Assembly 1. Line up the screen assembly in the recession on top of the brewer cylinder. Make certain that the bump on one of the sides of the screen assembly is pointing to the rear of the brewer cylinder.
- Page 7 ZUMA BREWER - OPERATION & SERVICE MANUAL Using the Brewer Rinse Cycle The Vista 2/3 is equipped with a rinse cycle for both the brewer and the chocolate components. This automated feature allows for simple periodic cleaning of these components. To access the rinse cycles, press the "...
- Page 8 Vista 2 with a D-series or G-series rear board. If a large cup of coffee is brewed on a newer Zuma brewer with a sealed breather vent, liquid may remain in the cylinder as the brewer cycles back to the home position. After a few cups, liquid may accumulate in the cylinder and cause inconsistent coffee levels and possibly cup overflows.
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Page 9: Zuma Brewer Adjusting And Handling Procedures
Zuma Brewer Adjusting and Handling Procedures For the past few weeks, we have been analyzing the Zuma brewers that have been returned to us for repair. The majority of these brewer were received with damaged bearings and vertical rod housings. Our analysis indicates that in most cases, too much tension was placed on the brew chambers. - Page 10 Brew Chamber Installation • The correct removal and installation procedure for the brew chamber is crucial. Although the assembly can be easily removed for cleaning (by lifting up the latch bar in front of the chamber), the re- installation requires some precision. The wiper assembly on the chamber must be inserted between the two stainless steel arms located at the rear of the brewer.
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Page 11: Zuma Brewer - Brew Chamber Tension Adjustment
Zuma Brewer – Brew Chamber Tension Adjustment Figure 2 Figure 1 Too Loose – Side View Too Loose – Front View The wiper is not touching the surface of the cylinder and No bend on the wiper because it is not touching the filter screen. - Page 12 Please note the Zuma brewer used in Figure 5 and Figure 6 was only slightly overtightened. If the tension is higher than that used in the example, damage to the brewer components will occur much quicker and will be more severe.
- Page 13 ZUMA BREWER CAST ALUMINUM ARM UPGRADE INSTRUCTIONS 1. Remove the old Zuma brewer arms. a) Open the brewer and remove the brew chamber. b) Rotate the T-bar 180° to allow the H-frame to open completely. c) Make sure the crank arm is at about the 5 o’clock position.