Evolution Technical Manual - Jemphrey

Technical Manual
inlet pipes to their locating brackets. Refit the brewer guard and close the front
door of the machine. The machine will power up and the brewer will index to its
home position.
5. Brew Chamber Tension Adjustment - Paperless Brewer
If a leak develops between the brew chamber and the filter screen assembly during a
brew cycle, it may be necessary to adjust the brew chamber tension arm. The leaking
is an indication that the brew chamber is not closing correctly. Proceed as follows:
1. Open the door and insert the door switch safety key. The machine is now on.
Press the Brewer Open switch (2) located in the service keypad on the rear of
the door. The brewer will index to its fully open position and stop. Remove the
safety key.
2. Lift the latch bar and remove the brewer chambers/wipe arms assembly. Push
down on the ‘H’ frame (1) and remove the T-
bar (2) from the recess. Add a shim (3) into the
recess and replace the T-bar.
Important: Do not add several shims at once
as assembly may become over tensioned,
causing damage to the brewer bearings and
vertical rod housings.
3. Re-install the brew chambers/wipe arms assembly into the brewer unit. Insert the
door switch safety key and allow the machine to power up. Test vend several
freshbrew drinks through the brewer to ensure that the brew chambers assembly
closes correctly and does not leak.
N.B. In most cases this procedure is enough to stop the leaking. Should the
brewer still leak, repeat the above procedure, adding one more shim. If the
problem still persists, remove all of the shims and turn the T-bar one complete
revolution clockwise. Re-insert the T-bar into the H frame and test vend as above.
4. If the tension is adjusted correctly but the brewer is still leaking, do not increase
the brew chamber tension further. Check the brewer to ensure there is no loss
of vacuum, usually caused by a cracked, worn or scored cylinder, or a worn teflon
piston seal.
6. Removing The Brewer - Paper Type
1. Open the door and insert the safety key. The machine is now on.
97