Hoshizaki 73180 service manual Important Notes for Component Replacement

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5)Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. See the nameplate for the required refrigerant charge. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets the requirements of ARI Standard 700 (latest edition) be used.

6)A liquid charge is recommended when charging an R-134a system. Place the service cylinder on the scales; if the service cylinder is not equipped with a dip tube, invert the service cylinder, then place it on the scales. Open the high-side valve on the gauge manifold.

7)Allow the system to charge with liquid until the proper charge weight is met.

8)Close the high-side valve on the gauge manifold, then close the refrigerant access valve (if applicable). Disconnect the gauge manifold hose.

9)Cap the access valve to prevent a possible leak.

B.Important Notes for Component Replacement

NOTICE

When replacing a component listed below, see the notes to help ensure proper operation.

Component

Notes

 

 

Compressor

Install a new drier and PTC relay.

 

Evaporator Assembly Components. See Fig. 9.

 

 

Upper and Lower

Inspect the upper bearing for wear. See "V.C.1. Upper Bearing Wear Check." Replace

Bearings

if necessary. When replacing the upper bearing it is advised to also change the lower

 

bearing at the same time.

 

 

Evaporator

• Install a new drier.

 

• Inspect the mechanical seal and O-ring prior to installing the new evaporator. If worn,

 

cracked, or scratched, the mechanical seal should also be replaced.

 

 

Gear Motor

Install a new gear motor capacitor.

 

 

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Contents 100BAF-DS 100BAF-AD 100BAF-ADDS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Auxiliary Codes A-1 and Earlier Specifications 100BAFAuxiliary 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 II. General Information ConstructionFront Auxiliary Codes RearIcemaking Unit Freeze Cycle Sequence of OperationFill Cycle Auxiliary Codes A-1 and Earlier Auxiliary Codes A-2 and Later Auxiliary Codes A-2 and Later Wiring DiagramIcemaker with Optional Drain Pump HS-0248 100BAF Series Performance DataIV. Service Diagnosis Diagnostic ProcedureIce Production Check Page Auxiliary Codes A-2 and Later Bin Control Check Float Switch Check Lower Float white Plastic Retainer Clip Float Switch CleaningOptional Drain Pump HS-0248 OverviewDrain Pump Check Priming Instructions Float Switch Cleaning No Ice Production Possible Cause Startup Diagnostic ChartsShutdown Fill Cycle and Refill Cycle Shutdown Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Evacuation and Recharge R-134a BrazingComponent Important Notes for Component ReplacementRemoval 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 Frequency Area Task Maintenance ScheduleCleaning Solution Cleaning and Sanitizing InstructionsPage Sanitizing Solution Page Cleaning Solution Page Sanitizing Solution Storage Bin Drain Condenser Auxiliary Codes A-1 and Earlier Skip to step VII. Preparing the Icemaker for Periods of Non-UseVIII. Disposal
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