Hoshizaki DKM-500BAH service manual Removal and Replacement of Spray Tubes

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7)Install the new pump, and replace the removed parts in the reverse order of which they were removed.

8)Turn on the power supply, and check for leaks.

9)Replace the panels in their correct positions.

M.Removal and Replacement of Spray Tubes

1)Turn off the power supply.

2)Remove the outer panels and the evaporator insulation panels. Be sure to disconnect the dispense switch connector from the control box when removing the front panel.

3)Remove the rubber hoses from the spray tubes (water supply pipe).

4)Release the clamps, and disconnect the rubber hoses.

5)Remove the spray tubes.

6)Install the new spray tubes, and replace the removed parts in the reverse order of which they were removed.

7)Replace the evaporator insulation panels and the outer panels in their correct positions.

8)Turn on the power supply.

N.Removal and Replacement of Gear Motor

1)Turn off the power supply.

2)Remove the panels. Be sure to disconnect the dispense switch connector from the control box when removing the front panel.

3)Disconnect the gear motor wiring harness from the back of the control box.

4)Loosen the adjustment bolt, then loosen the four bolts securing Gear Motor Bracket

(B).

5)Slide Gear Motor Bracket (B) up to its highest position and retighten.

6)Remove the chain.

7)Loosen the socket set screw securing the sprocket, then use a gear puller to remove the sprocket.

8)Remove the bushing from the barrier and slide the gear motor wires free of the barrier. Release the wires from the wire tie on the barrier.

9)While supporting the gear motor and barrier, remove the four bolts securing them to Gear Motor Bracket (B). Carefully remove the motor and barrier.

Adjustment Bolt

 

Bolts

 

Chain

Bolts

 

Lower sprocket

Gear Motor

takes a 2.5 mm

Bracket (B)

allen wrench.

Sprocket

 

Bushing

 

 

Gear Motor

Barrier

Gear Motor

Bracket (B)

Sprocket

Bolt

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Image 40 Contents
DKM-500BAH Hoshizaki AMERICA, INC Contents Page Specifications DKM-500BAHII. General Information Construction DKM-500BAHSequence of Operation DKM-500BAH Sequence Flow Chart and Component Operation CycleControl Board Control Board Layout Control Products E Control BoardControl Board Harvest Backup Timer and Freeze Timer High Temperature SafetyLow Water Safety Maximum Water Supply Period 6 minutesLED Lights and Audible Alarm Safeties PM, SR, DVDefault Dip Switch Settings Controls and AdjustmentsHarvest Control Thermistor Harvest Timer dip switch 1 Pump-Out Timer dip switch 3Freeze Timer dip switch 9 Pump-Out Frequency Control dip switch 5Bin Control Bin Control Troubleshooting Control Board Check ProcedureMachine Will Not Start Machine Will Not Shut OffSwitches Control Board ReplacementControl Switch Service SwitchCirculate WashDKM-500BAH Wiring Diagram Timing Chart Page Performance Data 110IV. Service Diagnosis Minute Diagnostic Procedure Ice Making Diagnostic ChartsNo Ice Production Problem Possible Cause Remedy Problem Possible Cause Remedy Evaporator is Frozen Up Low Ice Production Abnormal IceOther DispensingProblem Possible Cause Remedy Removal and Replacement of Components Service for Refrigerant LinesRefrigerant Recovery Evacuation and Recharge R-404ARemoval and Replacement of Compressor BrazingRemoval and Replacement of Drier Removal and Replacement of Expansion Valve Removal and Replacement of Hot Gas Valve Removal and Replacement of Evaporator Removal and Replacement of Condenser Removal and Replacement of Thermistor Removal and Replacement of Fan MotorRemoval and Replacement of Inlet Water Valve Removal and Replacement of Pump MotorRemoval and Replacement of Spray Tubes Removal and Replacement of Gear MotorRemoval and Replacement of Dispense Switch Removal and Replacement of SolenoidCleaning Instructions VI. Cleaning and Maintenance InstructionsCleaning Procedure Icemaker Sanitizing Procedure Icemaker Cleaning Procedure Bin Sanitizing Procedure BinMaintenance Instructions Preparing the Icemaker for Long StorageExterior Panels Air Filters