Hoshizaki dcm-75ibah Removal and Replacement of Extruding Head, Removal and Replacement of Auger

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2.Removal and Replacement of Extruding Head

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 storage bin cover. Remove spout B, then remove spout A and the cutter. See Fig. 14.

4)Remove the apron panel, then remove the left side panel.

5)Remove the allen head cap screws (with seals) securing the extruding head and discard. NOTICE! The allen head cap screws (with seals) are not reusable. New allen head cap screws (with seals) must be used.

6)Lift off the extruding head.

7)Place the new extruding head in place and tighten down with new allen head cap screws.

8)Replace the cutter in its correct position.

9)Replace spout A, spout B, and the storage bin cover in their correct positions.

10)Move the power switch to the "ON" position, then replace the panels in their correct positions.

11)Turn on the power supply, then move the control switch to the "ICE" position to start the automatic icemaking process.

3.Removal and Replacement of Auger

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 storage bin cover. Remove spout B, then remove spout A. See Fig. 14.

4)Remove the apron panel, then remove the left side panel.

5)Remove the allen head cap screws (with seals) securing the extruding head and discard. Using the cutter, lift out the auger assembly.

6)Remove the cutter, extruding head, and upper part of the mechanical seal from the auger and place them on the new auger. NOTICE! To help prevent water leaks, be careful not to damage the surfaces of the Oring or mechanical seal.

7)Install the new auger assembly with the upper part of the mechanical seal attached. Secure the auger assembly using new allen head cap screws.

8)Replace spout A, spout B, and the storage bin cover in their correct positions.

9)Move the power switch to the "ON" position, then replace the panels in their correct positions.

10)Turn on the power supply, then move the control switch to the "ICE" position to start the automatic icemaking process.

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Contents DCM-751BAH-OS DCM-751BWH-OS Hoshizaki AMERICA, INC Contents Page Important Safety Information Page DCM-751BAH-OS Construction and Water/Refrigeration Circuit DiagramsDCM-751BWH-OS Ice Making Unit Water/Refrigeration Circuit Diagrams Spout Inlet Water Valve Water Supply Float Chart Control Board Sequence Flow Chart DCM-751BH-OSOperation DiagnosisService Diagnosis Diagnostic ProcedureIce Production Check Page Page Page Page Control Board Check 5VDC CB K9 Connector See Fig High-Pressure Switch HPS5VDC CB K9 Connector Component Pin # Wire Color 5VDC CB K8 Connector Component Pin # Wire Color 5VDC CB K8 Connector See FigGear Motor Protect Relay Gmpr Bin Control BC5VDC 0VDC Portion Signal #5 R Red K4 pin closest 5VDC Power Supply #3 W/BK Connector Pin # Wire Color Neutral LBU Open Closed 24VAC CB K2 ConnectorBin Control Check Float Switch Check and Cleaning Float Switch CheckFloat Switch Cleaning Page Diagnostic Tables No Ice ProductionNo Ice Production Possible Cause Startup Shutdown No Ice Production Possible CauseIce Dispense-Push Button Ice/Water DispensingIce Dispense-Opti-Serve Water Dispense-Push ButtonIII. Controls and Adjustments DCM-751BH Control Board LayoutDCM-751BH-OS K2 Connector Drain Valve #10 W/BUNo. of Beeps Type of Alarm Reset Options Every 5 sec LED Lights and Audible Alarm SafetiesIcemaking Sequence Sequence Step Energized Components Min MaxDefault Dip Switch Settings Settings and AdjustmentsInfrared Sensor Shutdown Delay S1 dip switch 1, 2 Drain Frequency Control S1 dip switchBin Control Selector S1 dip switch Continuous Dispensing Timer S1 dip switch 5Bin Control Shutdown Delay S1 dip switch Factory Use S1 Dip Switch 9ICE Power Switch, Control Switch, and Dispense Mode SwitchOFF DrainDispense Mode Switch ContinuousPortion Service for Refrigerant Lines IV. Removal and Replacement of ComponentsRefrigerant Recovery BrazingEvacuation and Recharge R-404A Evaporator Assembly Components. See Fig Important Notes for Component ReplacementEvaporator Assembly Upper Bearing Wear Check Icemaking UnitRemoval and Replacement of Auger Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator 5b. Lower Housing Removal and Replacement of Gear Motor Dispense Components Dispense Auger and AgitatorDispense and Agitating Motors Maintenance Maintenance ScheduleFrequency Area Task VI. Preparing the Appliance for Periods of Non-Use Page VII. Disposal DCM-751BAH VIII. Technical Information Specification SheetsDesign without prior Potable Water WATER-COOLED Condenser DCM-751BWH779 758 Reference without *marks 738 719 ICE Production Performance Data800 363 Wiring Diagrams DCM-751BH-OS