Stoelting U421/U444 Manuel d'utilisateur

Model U421/U444(Serial #17978 and up)OWNER'S MANUALManual No. 513595-4 July, 2004 Rev. 1

1SECTION 1INTRODUCTION1.1 DESCRIPTIONThe Stoelting U421 and U444 floor model freezers are pres-sure fed. The freezers are equipped with fully automati

2Figure 2a. Air-Cooled SpecificationFigure 2b. Water Cooled Specification

3SECTION 2INSTALLATION INSTRUCTIONS2.1 SAFETY PRECAUTIONSDo not attempt to operate the freezer until the safetyprecautions and operating instructions

42.2 SHIPMENT AND TRANSITThe freezer has been assembled, operated, and in-spected at the factory. Upon arrival at the final destina-tion, the freezer

52.5 MIX PUMPA. Mix Pump Hose InstallationFollow the steps below to install the mix pump hose.1. Turn pump on.2. Feed one end of mix pump hose into th

6B. Connect 1/2 inch (12,7mm) I.D. plastic food gradetubing to check valve and then to the mix con-tainer. Observe check valve flow arrow. Securewith

7Figure 8. 3-way TeeFigure 9. Mix Inlet Tube & Probe Assy. ClipRefrigeratedMix TransferLineÅÅÅÅÅLarge Port(Air/Mix)3-way TeeÆÆÆÆÆLow Mix CordCov

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9SECTION 3INITIAL SET-UP AND OPERATION3.1 SAFETY PRECAUTIONSSAFE OPERATION IS NO ACCIDENT; observe theserules:A. Know the freezer. Read and understand

10When the switch is placed in the OFF position, therefrigeration system and auger will not operate.When the switch is placed in the SERVE position,th

113.3 IMPORTANT INFORMATION REGARDINGCLEANING AND SANITIZINGSoft serve and shake freezers require specialconsideration when it comes to food safety a

12As a recommended cleaner and sanitizer for yourfrozen dessert machine, STERA-SHEEN has provento be one of the best daily maintenance products for:·

13A. Disassembly Of Front Door1. Remove the front door by turning off the blackknobs and then pulling the front door off the studs.2. Remove the air b

143.7 CLEANING THE FREEZERCAUTIONRisk of Product DamageDo not use acid cleaners, strong caustic compoundsor abrasive materials to clean any part of th

15H. Install the spigot through the bottom of the frontdoor ( see Figure 18).Figure 18. Front Door AssemblyI. Assemble the air bleed valve O-ring onto

16A. Prepare 3 gallons of sanitizing solution followingmanufacturer's instructions, and pour into storagecontainer.B. Place the mix pump switch i

17The freezer is designed to dispense the product at areasonable draw rate. If the freezer is overdrawn, theresult will be a soft product and air pops

18C. The over-run adjustment is preset at the factory. If anadjustment becomes necessary, refer to Section 4.3.12 OPERATION OF MIX PUMPThe pump switch

19NOTEIf the mix lines or air line is difficult to remove, softenwith a rag soaked in hot water. Hose connectionsmay be sprayed with Haynes Sanitary

Need Parts or Service?We stock the parts you need.Our Technicians are factorytrained and are certified in theStoelting Technicare program.Model No.:

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21SECTION 4MAINTENANCE INSTRUCTIONS4.1 FREEZER ADJUSTMENTThis section is intended to provide maintenance person-nel with a general understanding of th

22CAUTIONUTIONNever disconnect hoses from freezer or pump with-out first opening spigot to relieve pressure.3. Disconnect mix pump hose at each end.4.

23A. Remove either side and back panels.B. Press firmly on one belt. Figure 29.Figure 30. Belt AdjustmentC. When the tension is properly adjusted, the

24D. For water-cooled freezers that are left in unheatedbuildings, or buildings subject to freezing, the watermust be shut off and disconnected. Disco

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26MIX PUMPNURTONSEODROTOMPMUP.1.ffosipmupotrewoP .pmupotrewopylppuS.egatlovwoL .egatlovenilwolrofkcehC.pmalc/revockcalbedisnidemmajesohpmupxiM ruofevo

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29SECTION 5HOW TO ORDER REPLACEMENT PARTS5.1 HOW TO ORDER REPLACEMENT PARTSTo assure the receipt of the proper replacement parts,supply your Authorize

30DrawingIndex No. Part No. Description7 625133 O-ring, Front Door11 624520 O-ring, Air Bleed Valve12 694200 Spring, Air Bleed Valve13 482004 Knob, Ai

31AUGER PARTSDrawing PartIndex No. Number Qty. Description1 2104552 1 Auger Front Support2 149003 1 Front Bearing3 381804 6 Plastic Flight4 694255 6 S

32Figure 7. Mix Pump

33DECALSQty. Part Number Description2 324200 H.P. Manual Reset2 324798 Clean-Off-Serve2 324797 Standby/Serve1 324800 Cab Off-On2 324799 Pump Off On1 3

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35GENERAL ORDER ADVICECustomer No.: ________________ Customer P.O. No.: ________________ Stoelting Order No.: ______________Sold To: _______________

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37GENERAL ORDER ADVICECustomer No.: ________________ Customer P.O. No.: ________________ Stoelting Order No.: ______________Sold To: _______________

WARRANTYSOFT SERVE / SHAKE FREEZERS1. Scope:Stoelting, LLC warrants to the first user (the “Buyer”) that the freezer cylinders, hoppers, compressors,

STOELTING, LLC Tele: 920-894-2293502 Hwy 67Kiel, WI 53042-1600 Fax: 920-894-7029STOELTING® OWNER'S MANUALFORMODEL U421/U444CAB MODEL SOFT-SERVE

Section 1 ... 11.1 Description ...

ILLUSTRATIONSFigure 1 Model U421/U444 Series Freezer ....1Figure 2a Air-Cooled Specifications ...

Safety Alert Symbol:This symbol Indicates danger, warning or caution.Attention is required in order to avoid serious personalinjury. The message that