Bunn IMIX-3S+ Installation & Operating Manual page 21

ADJUSTMENTS - continued
GRINDER THROW WEIGHT ADJUSTMENT:
1. Open the door, and slide the espresso brew group lock to the left to unlock the brew group.
2. Tip the top of the brew group head towards the front of the machine to disengage from the espresso drive, then
remove brew group from the drive.
3. Place the NORMAL/PROGRAM/RINSE switch in the PROGRAM position.
4. Press the Large Cup button to the STRENGTH ADJUST menu, then press the button under YES.
5. Press the Large Cup button to TEST SM GRINDTM.
6. Place a small container on a scale, and tare container.
7. Hold the container under the grinder chute, and press any beverage dispense button.
8. Grinder will run for the time set for a small (single shot) espresso, then shot.
9. Repeat several times, and average the weight.
10. To change the weight, press the Small Cup button to SM ESP GRIND TIME.
11. Us the buttons below the (-) and (+) button to increase or decrease the grind time.
12. Press the Large Cup button to TEST SM GRIND to test new grind time.
13. Press the Large Cup button to TEST LG GRIND to test the large (double shot) grind weight.
14. Press the Small Cup button to LF ESP GRIND TIME to adjust the grind time for a large (double shot) espresso,
if required.
15. After the grind adjustments have been tested and adjusted, place the NORMAL/PROGRAM/RINSE Switch in the
"RUN" position, and press the center button to exit the program mode.
16. Reinstall the espresso group head back onto the espresso drive.
GRINDER PARTICLE SIZE ADJUSTMENT:
The particle size of the ground coffee can be adjusted for optimal brewing of the espresso.
1. Turn knob counterclockwise to increase the particle size of the
ground coffee (see Figure 1.)
2. Turn the knob clockwise to decrease the particle size of the
ground coffee. CAUTION! If there is ground coffee in the grinder,
this adjustment should only be made while the grinder is running.
Use STRENGTH ADJUST, TEST SM or LG GRIND functions to
operate the grinder for adjusting to a finer grind.
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Figure 1
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