Hoshizaki FS-1022MLH-C service manual Removal and Replacement of Evaporator

13)Move the control switch to the "ICE" position.

14)Plug the unit into the electrical outlet, then move the power switch to the "ON" position to start the automatic icemaking process.

15)Replace the front panel in its correct position.

5. Removal and Replacement of Evaporator

CAUTION

1.Always install a new drier every time the sealed refrigeration system is opened.

2.Do not replace the drier until after all other repair or replacement has been made. Install the new drier with the arrow on the drier in the direction of the refrigerant flow.

3.When brazing, protect the drier by using a wet cloth to prevent the drier from overheating. Do not allow the drier to exceed 250°F (121°C).

1)Remove the front panel, then move the power switch to the "OFF" position.

2)Move the control switch to the "DRAIN" position.

3)Move the power switch to the "ON" position.

4)Allow the water to drain from the evaporator.

5)Move the power switch to the "OFF" position, then unplug the unit from the electrical outlet.

6)Remove the top and side panels.

7)Recover the refrigerant and store it in an approved container.

8)Remove the strap connecting the spout to the chute assembly, then remove the spout.

9)Disconnect the water hoses.

10)Remove the extruding head seal bolts. Using the cutter, lift out the auger assembly.

11)Remove the insulation and the expansion valve bulb on the suction line.

12)Disconnect the inlet and outlet tubing.

13)Remove the socket head cap screws and split lock washers securing the evaporator to the lower housing.

14)Lift off the evaporator.

15)Inspect the mechanical seal and O-ring prior to installing the new evaporator. The mechanical seal consists of two parts. One moves along with the auger, and the other is fixed on the lower housing. If the contact surfaces of these two parts are worn, cracked, or scratched, the mechanical seal may cause water leaks and should be replaced. Instructions for removing the mechanical seal and lower housing are located later in this procedure.

16)Make sure the lower mechanical seal is in place, then place the evaporator in position. Secure the evaporator to the lower housing using the socket head cap screws and split lock washers.

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