Hoshizaki F-80 I MAH (-c), F-80 I MWH (-c) service manual Maintenance

Page 57

3. Maintenance

3. Maintenance

IMPORTANT

1.This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icemaker.

2.To have the optimum performance of this icemaker, the following consumable parts need periodical inspection, maintenance and replacement:

Extruding Head Housing Gear Motor Auger Mechanical Seal

These parts should be inspected at least once a year or every 10,000 hours of operation. Their service life, however, depends on water quality and environment. More frequent inspection and maintenance are recommended.

Consult with your local distributor about inspection and maintenance service. To obtain the name and phone number of your local distributor, call Hoshizaki Technical Support at 1-800-233-1940.

1) Stainless Steel Exterior

To prevent corrosion, wipe the exterior occasionally with a clean and soft cloth. Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up.

2)Storage Bin and Scoop

*Wash your hands before removing ice. Use the plastic scoop provided (bin accessory).

*The storage bin is for ice use only. Do not store anything else in the bin.

*Keep the scoop clean. Clean using a neutral cleaner and rinse thoroughly.

*Clean the bin liner using a neutral cleaner. Rinse thoroughly after cleaning.

57

Image 57

Contents “A Superior Degree of Reliability” Number Issued RevisedModular Flaker Models F-801MAH-C F-801MWH-C HoshizakiHoshizaki America, IncComplete and detailed explanation of the problem Phone 1-800-233-1940 Technical Service 770 487-2331 FaxHOSHIZAKI AMERICA, INC 618 Highway 74 South Peachtree City, GA Attn HOSHIZAKI Technical Support DepartmentCONTENTS 7. Removal and Replacement of Evaporator Assembly 5. Removal and Replacement of Expansion Valve8. Removal and Replacement of Fan Motor 9. Removal and Replacement of Control Water ValveF-801MAH I. Specification 1. IcemakerF-801MWH F-801MAH-C F-801MWH-C F-801MAH/-C II. General Information 1. ConstructionWater Supply Inlet Junction Box Water Regulator Compressor Drier F-801MWH/-CGEAR MOTOR 2. Control Box LayoutCONTROL TIMER FLUSHRUN CAPACITOR III. Technical Information 1. Water Circuit and Refrigeration Circuit F-801MWH/-C F-801MAH/-C, F-801MWH/-C 2. Wiring Diagrams3. Sequence of Electrical Circuit b When reservoir has been filled, gear motor starts immediately c Compressor starts about 60 sec. after gear motor starts Page e Low water except water-cooled model Page Page h When flush timer operates for 15 min. every 12 hours Page Page 4. Timing Chart Miswiring. Circuit Protect Relay operatesProper wiring. The unit starts 150 sec 1 sec60 sec 1. CIRCUIT PROTECT RELAY 2. WATER LEVEL UPPER 3. FLOAT SWITCH LOWER 5. Performance Data WATER FLOW FOR CONDENSER F-801MAH-C F-801MWH-C 1. Adjustment of Water Regulating Valve water-cooled model only IV. Adjustment of Components2. Adjustment of Flake Size PROBLEM V. Service Diagnosis 1. No Ice ProductionPOSSIBLE CAUSE REMEDYPROBLEM 2. Low Ice Production PROBLEMPOSSIBLE CAUSE REMEDY3. Other 1. Service for Refrigerant Lines VI. Removal and Replacement of Componentsa Refrigerant Recovery b Evacuation and Recharge R-404A2. Brazing DANGER 3. Removal and Replacement of Compressor 4. Removal and Replacement of Drier 5. Removal and Replacement of Expansion Valve Page Cutter 7. Removal and Replacement of Evaporator AssemblyExtruding Head AugerGear Motor Bearing-Lower and Mechanical Sealc Check for leaks using nitrogen gas 140 PSIG and soap bubbles 27 When replacing the evaporator28 Move the flush switch to the ICE position 30 Turn on the power supplyCoupling - Spline Auger Mechanical Seal O-ring Bearing Lower Bolt WasherRubber O-ring Nylon Ring Bolt Washer Cutter Extruding Head Washer Socket Head Cap Screw Evaporator Washer Socket Head Cap Screw Barrier9. Removal and Replacement of Control Water Valve 8. Removal and Replacement of Fan Motor10. Removal and Replacement of Flush Water Valve 1. Preparing the Icemaker for Long Storage VII. Cleaning and Maintenancea Cleaning Solution 2. Cleaning and Sanitizing Instructionsb Cleaning Procedure d Sanitizing Procedure - Initial c Sanitizing Solutione Sanitizing Procedure - Final 19 Turn off the power supply after 30 minutes 18 Move the flush switch to the “ICE” position and run the icemaker21 Flush out any solution from the storage bin 22 Turn on the power supply and start the automatic icemaking process3. Maintenance 4 Condenser except water-cooled model 3 Air Filter air-cooled model only