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15) Use an electronic leak detector or soap bubbles to check for leaks. Add a trace of
refrigerant to the system (if using an electronic leak detector), and then raise the
pressure using nitrogen gas (140 PSIG). Do not use R-404A as a mixture with
pressurized air for leak testing.
16) Evacuate the system, and charge it with refrigerant. See the nameplate for the required
refrigerant charge.
17) Install the auger assembly with the upper part of the mechanical seal attached and
tighten down the allen head cap screws.
18) Replace the evaporator bracket and reconnect the water hoses.
19) Replace spout A, spout B, and the front cover of the storage bin in their correct
positions.
20) Move the power switch to the "ON" position, then replace the panels in their correct
positions.
21) Turn on the power supply, then move the control switch to the "ICE" position to start the
automatic icemaking process.
5. Removal and Replacement of Mechanical Seal and Lower Housing
5a. Mechanical Seal
1) Move the control switch to the "DRAIN" position and drain all of the water from the
evaporator.
2) After the water has stopped draining, move the control switch to the "OFF" position, then
turn off the power supply. Remove the front and top panels, then move the power switch
to the "OFF" position.
3) Remove the front cover of the storage bin. Remove spout B, then remove spout A.
See Fig. 2.
4) Remove the apron panel, then remove the left side panel.
5) Remove the extruding head heater and the allen head cap screws securing the
extruding head.
6) Using the cutter, lift out the auger assembly, then remove the evaporator bracket.
7) The mechanical seal consists of two parts. One moves along with the auger, and the
other is xed on the lower housing. NOTICE! If the contact surfaces of these two
parts are worn, cracked, or scratched, the mechanical seal may cause water leaks
and should be replaced.
8) Remove the allen head cap screws securing the evaporator to the lower housing.
9) Raise the evaporator up to access the lower housing.
10) Remove the mechanical seal from the housing. If only replacing the mechanical seal,
proceed to step 13. NOTICE! To help prevent water leaks, be careful not to damage
the surfaces of the O-ring or mechanical seal.