Hoshizaki 73180 service manual

D. Float Switch Check and Cleaning (auxiliary codes A-2 and later)	28
1. Float Switch Check	28
2. Float Switch Cleaning	29
E. Optional Drain Pump HS-0248	30
1. Overview	30
2. Drain Pump Check	30
3. Float Switch Cleaning	32
F. Diagnostic Charts	33
1. Auxiliary Codes A-1 and Earlier	33
2. Auxiliary Codes A-2 and Later	35
V. Removal and Replacement of Components	37
A. Service for Refrigerant Lines	37
1. Refrigerant Recovery	37
2. Brazing	38
3. Evacuation and Recharge (R-134a)	38
B. Important Notes for Component Replacement	39
C. Removal and Replacement of Evaporator Assembly Components	40
1. Upper Bearing Wear Check	41
2. Removal and Replacement of Extruding Head	42
3. Removal and Replacement of Auger	43
4. Removal and Replacement of Evaporator	44
5. Removal and Replacement of Mechanical Seal and Lower Housing	45
6. Removal and Replacement of Gear Motor	47
VI. Maintenance	48
A. Maintenance Schedule	49
B. Cleaning and Sanitizing Instructions	50
1. Auxiliary Codes A-1 and Earlier	50
2. Auxiliary Codes A-2 and Later	54
C. Storage Bin Drain	57
D. Condenser	58
VII. Preparing the Icemaker for Periods of Non-Use	59
VIII. Disposal	60

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