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Part Number: 040006019 Rev. 01 09/18
Ice Thickness Adjustment
QM-20 dice ice cube formation is slightly different from our
previous models. Manitowoc ice machines have a unique
cube shape. It is normal to have a dimple in the ice cube (a
concave indentation in the cube). Ice cubes from the QM-20
may appear to have a slightly larger dimple than other
Manitowoc dice cube machines. Therefore, cube size for
the QM-20 is determined by measuring the slab weight (the
combined weight of all cubes from one harvest cycle). To
determine proper slab weight follow the instructions listed
below.
ICE BRIDGE SHOULD BE 1/16" TO 1/8"
(1.5 mm TO 3.2 mm) THICKNESS
A DIMPLE
IN EACH
CUBE CELL IS
NORMAL
Correct Ice Bridge Thickness
1. Ensure the air filter, front, and back panels are installed
properly and close the bin door.
2. During the third harvest cycle open the bin door and
catch the entire slab of ice.
3. Weigh the ice slab. The combined weight of all cubes
from one harvest should weigh between 7 and 9 oz (200
and 270g). If the slab weight is within this range, the ice
machine is working properly and no further action is
needed. If the slab weight is not within this range or you
desire a slightly thicker or thinner cube, continue to step
four.
n
Warning
Do not touch electrical wires. Disconnect power to the ice
machine before making any ice thickness adjustments.
4. Remove the air filter.
5. Remove the two screws holding the front panel in place
and remove the front cover.
6. Locate the ice thickness control dial on the control board
(see below). Turn the dial clockwise for a thicker cube or
counter clockwise for a thinner cube.
ICE THICKNESS
ADJUSTMENT
DIAL
DIAL IS
FACTORY SET
TO ZERO
Ice Thickness Adjustment Dial
7. Ensure all of the panels and air filter are reinstalled
properly and the bin door is closed. Repeat steps 1
through 3.
After completing the procedure above, if you are unable to
obtain a sheet of ice weighing 7 to 9 oz (200 to 270g) contact
the Welbilt Service Department for further assistance.