Hoshizaki 73180 service manual 5b. Lower Housing

Page 46

11)Remove the socket head cap screws securing the extruding head and evaporator flange. Remove the evaporator flange, then grasp the cutter and carefully lift out the cutter and extruding head. Grasp the top of the auger and carefully lift out the auger. When pulling out the auger, the upper part of the mechanical seal should come out with it.

12)Remove the socket head cap screws securing the evaporator to the lower housing.

13)Raise the evaporator up to access the lower housing.

14)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.

15)Remove the mechanical seal from the housing. If only replacing the mechanical seal, proceed to step 18. NOTICE! To help prevent water leaks, be careful not to damage the surfaces of the O‑ring or mechanical seal.

5b. Lower Housing

16)Remove the O-ring and the bolts securing the lower housing to the gear motor and remove the housing from the gear motor. If inspection of the upper bearing inside the extruding head (see "V.C.1. Upper Bearing Wear Check") indicates that it is out of tolerance, replace both it and the bearing inside the lower housing.

Note: Replacing the bearing requires a bearing press adaptor. If one is not available, replace the entire extruding head and housing.

17)Mount the lower housing onto the gear motor, then install the O-ring onto the lower housing.

18)Install the lower part of the mechanical seal onto the lower housing.

19)Lower the evaporator down and secure it to the lower housing.

20)Install the auger assembly with the upper part of the mechanical seal attached. Replace the cutter, extruding head, and evaporator flange in their correct positions.

21)Open the water supply line shut-off valve and check for water leaks.

22)Plug the unit into the electrical outlet, then move the power switch to the "ON" position.

23)Allow the icemaker to operate until the gear motor starts. Check for water leaks.

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

25)Replace the removed parts and panels in the reverse order of which they were removed.

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

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Contents 100BAF-DS 100BAF-AD 100BAF-ADDS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Specifications 100BAF Auxiliary Codes A-1 and EarlierAuxiliary Codes A-2 and Later 100BAF-DS 100BAF-DS, 2. Auxiliary Codes A-2 and Later 100BAF-AD 100BAF-AD, 2. Auxiliary Codes A-2 and Later 100BAF-ADDS 100BAF-ADDS, 2. Auxiliary Codes A-2 and Later Auxiliary Codes Rear II. General Information ConstructionFront Auxiliary CodesIcemaking Unit Sequence of Operation Freeze CycleFill Cycle Auxiliary Codes A-1 and Earlier Auxiliary Codes A-2 and Later Wiring Diagram Auxiliary Codes A-2 and LaterIcemaker with Optional Drain Pump HS-0248 Performance Data 100BAF SeriesDiagnostic Procedure IV. Service DiagnosisIce Production Check Page Auxiliary Codes A-2 and Later Bin Control Check Float Switch Check Float Switch Cleaning Lower Float white Plastic Retainer ClipOverview Optional Drain Pump HS-0248Drain Pump Check Priming Instructions Float Switch Cleaning Diagnostic Charts No Ice Production Possible Cause StartupShutdown Fill Cycle and Refill Cycle Shutdown Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery Brazing Evacuation and Recharge R-134aImportant Notes for Component Replacement ComponentRemoval and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of Extruding Head Removal and Replacement of Auger Removal and Replacement of Evaporator Page 5b. Lower Housing Page VI. Maintenance Maintenance Schedule Frequency Area TaskCleaning and Sanitizing Instructions Cleaning SolutionPage Sanitizing Solution Page Cleaning Solution Page Sanitizing Solution Storage Bin Drain Condenser VII. Preparing the Icemaker for Periods of Non-Use Auxiliary Codes A-1 and Earlier Skip to stepVIII. Disposal
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