6.1 Grid-Cutter
The grid-cutter is used to cut cubes from the ice slab formed on the evaporator. It uses
low voltage, 12VAC, to heat the wires. Wires are warm to the touch of a hand when not
under the load of a slab of ice. The grid-cutter is on only from the start of a harvest cycle
to 35 minutes from the start of the production cycle (see section 1.11).
There is no repair for the cutter. It will have to be replaced as an assembly. To test the
grid-cutter:
•
Check the resistance at the outside grid-cutter’s plug-in terminals (note: the middle
terminal is not used). If the resistance between the terminal of the plug is 5.0-5.9
ohms, the grid-cutter is good. At any other resistance readings, it will need to be
replaced.
•
Check for continuity between terminals and the grid-cutter’s stainless steel frame.
If continuity is found, check for wires that are not on the insulators.
Removal:
1.
From inside the unit, remove the escutcheon panel.
Figure 6.1
2.
Unplug the grid-cutter from the receptacle on the side of the liner (see figure 6.1).
3.
Remove the four screws that secure the grid-cutter and escutcheon panel brackets
(see figure 6.1).
4.
Slide the escutcheon panel brackets out.
5.
Remove the grid-cutter.
Installation:
1.
Re-install the grid-cutter and escutcheon panel brackets with the four screws
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