Adjustments - Bunn Crescendo Installation & Operating Manual

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Step 4:
Next, scroll thru sub menus until LG BREW VOLUME is displayed. Ensure the tic number is set at 190/default.
NOTE: 3.0 tics = 1.0 mil, Default 190 tics divide by 3.0 = 63.33 mils. This is your brew volume target 63.33mils for
a double shot. The extra 3.33 mils most likely will be absorbed in the espresso puck resulting around 60 mils of
finished product/double shot.
Step 5:
Reinstall the brew group, return switch to the NORMAL position and close door. Make a large espresso to see
if your brew/pour time is within the 17-23 seconds.
NOTE: Anytime you make an adjustment to the coffee coarseness and grind time, a shot must be discarded
between adjustments. If the pour is too slow or too fast, repeat all steps until you are within the 17-23 seconds
brew time.
NOTE: Steps 1 thru 3 will take some back and forth adjustments to achieve the target brew time. You should end
up with a dark color espresso, topped with a tan colored foam called crema. The crema may also have a marble
like appearance.
Style: Adjustment Knob (Figure 1)
The particle size of the ground coffee can be adjusted for optimal brewing
of the espresso.
NOTE: BUNN recommends to rotate knob in 1 click increments to
achieve desired coarseness.
1. Turn knob counterclockwise to increase the particle size (coarse) of the
ground coffee.
2. Turn the knob clockwise to decrease the particle size (fine) of the
ground coffee.
CAUTION! If there is ground coffee in the grinder, this adjustment
should only be made while the grinder is running.
3. Use SET ESPRESSO SHOTS, TEST SM or LG GRIND functions to
operate the grinder for making particle size adjustment.
Style: Grinder Adjustment Screw with Locking Nut (Figure 2)
The particle size of the ground coffee can be adjusted for optimal espresso brewing.
The lock nut replaces the grinder knob to prevent tampering of grind adjustment.
NOTE: BUNN recommends to rotate adjustment screw in 1 hashmark
increments to achieve desired coarseness.
1. The grinder adjustment screw will be set from the factory to an
approximate particle size setting for espresso (11 Hashmarks).
2. Loosen locknut and use large flat blade screwdriver to rotate
adjustment screw clockwise or counter clockwise to desired
particle size, use screwdriver to hold adjustment screw while
tightening lock nut.
CAUTION! If there is ground coffee in the grinder, this adjustment
should only be made while the grinder is running
3. Use SET ESPRESSO SHOTS, TEST SM or LG GRIND functions to
operate the grinder for making particle size adjustment.

ADJUSTMENTS

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Adjustment Knob
Adjustment Screw with Locking Nut