Scotsman MXG 327, Service Manual

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Page 26
Page 26
ADJUSTMENT, REMOVAL AND REPLACEMENT
PROCEDURES
SMALL
IDENTATION
LITTLE OR NO
ICE IN CENTER
OF CUBES
THICK BULGE
SOLID ICE
OVER SIZE
NORMAL SIZE-SHAPE
SHALLOW SIZE
ADJUSTMENT OF THE CUBE SIZE
CAUTION. Before performing actual
adjustment of the cube size, check other
possible causes for cube size problems,
refer to the Service Diagnosis Section for
problem review and analysis.
Do not perform any adjustment till the
icemaking system has progressed
through severaÏ complete freezing and
harvest cycle, to observe size and quality
of ice cubes and whether or not the cube
size problem exists.
I. lf the cubes are shallow size (Indentation is
too deep) probably the length of the second
phase of the freezing cycle is too short so, to
extend such length you have to:
1. Locate the DIP SWITCH on the front of the
P.C. Board.
2. Take note of thecombination of the first four
DIP SWITCH KEYS and check the corrisponding
length of freezing cycle 2nd phase on Table B.
3. Change the same DIP SWITCH KEYS
setting so that it will correspond to the combination
on table B pre-ceding the one remarked at
step 2.
This will allow an extension of the freezing cycle
of two more minutes.
4. Observe the ice cubes in the next two
harvests and eventually repeat steps 2 and 3
above until proper ice cubes size is achieved.
See figure.
II. lf the cubes are oversize size (Indentation is
too full) probably the length of the second phase
of the freezing cycle is too long.
To shorten such length you have to:
1 . Locate the DIP SWITCH on the front of the
P.C. Board.
2. Take note of the combination of the first four
DIP SWITCH KEYS and check the corrisponding
length of freezing cycle 2nd phase on Table B.
3. Change the same DIP SWITCH KEYS
setting so that it will correspond to the combination
on table B coming next to the one remarked at
step 2.
This will reduce an the freezing cycle length of
two minutes.
4. Observe the ice cubes in the next two
harvests and eventually repeat steps 2 and 3
above until proper ice cubes size is achieved.
See figure.