Related Manuals for Polar Ware STOELTING U431
Summary of Contents for Polar Ware STOELTING U431
- Page 1 Model U431 (Serial #0 thru 17977) OWNER'S MANUAL Manual No. 513568 Dec. 2002, Rev. 5...
- Page 3 Need Parts or Service? We stock the parts you need. Our Technicians are factory trained and are certified in the Stoelting Technicare program. CALL Distributor: _________________________ Phone No.: _________________________ (fill in or affix label) Model No.: _______________________ Serial No.: _______________________ Purchase Date: ____________________ Start-Up Date:____________________...
- Page 5 STOELTING OWNER'S MANUAL ® MODEL U431 CAB MODEL SOFT-SERVE PRESSURIZED FREEZER This manual provides basic information about the freezer. Instructions and suggestions are given covering its basic operation and care. The illustrations and specifications are not binding in detail. We reserve the right to make changes at any time without notice, to the freezer and its components, without incurring any obligation to modify or provide new parts for freezers built prior to date of change.
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Page 7: Table Of Contents
TABLE OF CONTENTS Section 1 ......................1 Description ....................1 Specifications ..................2 Section 2 ......................3 Safety Precautions .................. 3 Shipment & Transit .................. 4 Freezer Installation ................... 4 Installing Permanent Wiring ..............4 Mix Pump ....................5 Section 3 ......................9 Safety Precautions .................. - Page 8 ILLUSTRATIONS Figure 1 Model U431 Freezer .............. 1 Figure 2 Specifications ................ 1 Figure 3 Decal Locations ..............3 Figure 4 Water/Electrical Connections ..........4 Figure 5 Auger Rotation ............... 4 Figure 6 Mix Hose Installation............... 5 Figure 7 Mix Pump ................6 Figure 8 4 Way Tee ................
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Page 9: Section 1
SECTION 1 INTRODUCTION 1.1 DESCRIPTION The Stoelting U431 floor model freezer is pressure fed. The freezer is equipped with fully automatic controls to provide a uniform product. The freezer is designed to operate with almost any type of commercial soft-serve or non-dairy mixes available, including ice milk, ice cream, yogurt, and frozen dietary desserts. -
Page 10: Specifications
1.2 SPECIFICATIONS : h t " 4 : h t " 4 : t h " 4 l a t i n i t i u y t i t i u . T . " 3 " 0 " 2 t t i f... -
Page 11: Section 2
SECTION 2 INSTALLATION INSTRUCTIONS 2.1 SAFETY PRECAUTIONS periodically to be sure they have not been painted over, rubbed off, fallen off, and can be recognized as warning WARNING CAUTION labels. Do not attempt to operate the freezer until the safety pre- If you are in need of replacement labels, indicate the part cautions and operating instructions in the manual are read number, type of label, location of label, and quantity re-... -
Page 12: Shipment & Transit
2.2 SHIPMENT AND TRANSIT The freezer has been assembled, operated, and in- spected at the factory. Upon arrival at the final destina- tion, the freezer must be checked for any damage which may have occurred during final transit. With the method of packaging used, the equipment should arrive in excellent condition. -
Page 13: Mix Pump
2.5 MIX PUMP Mix Pump Hose Installation Follow the steps below to install the mix pump hose. 1. Turn pump on. 2. Feed one end of mix pump hose into the entering or pick-up hose side (left) of black cover. 3. -
Page 14: Figure 7 Mix Pump
Connect 1/2 inch (12,7mm) I.D. plastic food grade tubing to check valve and then to the mix con- tainer. Observe check valve flow arrow. Secure with hose clamps. Then place assembly thru hole in cover and install retainer clip. Figure 9. Connect 1/2 inch (12,7mm) I.D. -
Page 15: Figure 8 4 Way Tee
Refrigerated Mix Transfer Line 4 Way Tee Large Port Air/Mix Tee Figure 8. 4 Way Tee Low Mix Cord Cover Retainer Clip Container Figure 9. Mix Inlet Tube & Probe Assy. Clip Hose Holder Figure 10. Hose Holder... -
Page 17: Section 3
SECTION 3 INITIAL SET-UP AND OPERATION 3.1 SAFETY PRECAUTIONS Clean-Off-Serve Switch SAFE OPERATION IS NO ACCIDENT; observe these The CLEAN-OFF-SERVE switch is a three position rules: toggle switch used to control the operation of the refrigeration system and auger. When the switch is Know the freezer. -
Page 18: Sanitizing
Low Mix Light Clean and lubricate parts. The low mix light will illuminate when the liquid level in the mix container drops below two gallons. Prepare 3 gallons of sanitizing solution following manufacturer's instructions, and pour into storage Front Door Safety Switch container. -
Page 19: Initial Freeze Down And Operation
3.4 INITIAL FREEZE DOWN AND OPERATION During normal operation it is not necessary to be overly This section covers the recommended operating proce- concerned about capacity. But, if there is an order for six dures to be followed for the safe operation of the freezer. products at one time, each using 9 ounces of product, it should be considered as 54 ounces of product. -
Page 20: Removing Mix From The Freezer
Air Operation: The air compressor operates concur- Allow water to agitate until the inside surface of front rently with the peristaltic mix pump. Air enters thru a door has rinsed clean. check valve on the piston downstroke. The air is discharged thru a second check valve, on the piston Open spigot to expel water. -
Page 21: Routine Cleaning
Wear Line Figure 16. Auger Flight Wear & Front Auger Support Bushing Wear Disassembly Of Front Door. Figure 18. Auger Flight Removal 1. Remove the front door by turning off the circular NOTE knobs and then pulling the front door off the studs. Be careful not to scratch inside of freezer barrel when removing flights or auger. -
Page 22: Mix Pump Cleaning
Figure 22. Removable Parts 3.12 SANITIZE FREEZER PARTS Figure 20. Cleaning Feed Tube Use a sanitizer mixed according to manufacturer's Clean the rear seal surface from inside of the freezer instructions to provide a 100 parts per million strength barrel. solution. -
Page 23: Figure 24 Spring Installation
Lubricate the hex drive end of auger with a small amount of white socket lubricant. A small container of socket lubricant is shipped with the freezer. Screw the springs onto the studs in plastic flights. Spring must be screwed into the flights com- pletely to provide proper tension. -
Page 25: Section 4
SECTION 4 MAINTENANCE INSTRUCTIONS 4.1 FREEZER ADJUSTMENT The mix pump has been preset at the factory to produce a This section is intended to provide maintenance person- product with approximately 40% overrun. Because of nel with a general understanding of the freezer adjust- differences in mix formulation, temperatures and baro- ments. -
Page 26: Mix Pump Hose Reposition
F. Tighten the allen screw, then place the wrench back CAUTION in its clip. Replace the lower back panel and secure NEVER DISCONNECT HOSES FROM FREEZER with the four screws. Turn the mix pump power switch OR PUMP WITHOUT FIRST OPENING SPIGOT to the ON position. -
Page 27: Condenser Cleaning (Air Cooled Freezers)
Remove either side and back panels. NOTE If the condenser is not kept clean, loss of refrigera- Press firmly on one belt. Figure 29. tion efficiency will result. 4.9 PREVENTATIVE MAINTENANCE It is recommended that a preventative maintenance sched- ule be followed to keep the freezer clean and operating properly. -
Page 28: Troubleshooting
For water-cooled freezers that are left in unheated buildings, or buildings subject to freezing, the water must be shut off and disconnected. Disconnect fittings at water valve inlet and water outlet lines at the freezer. The fittings are located at the rear of the freezer. - Page 29 FREEZER . f f k " , " t n i l a t l a t l e l l . y l f l l . y l . f f n i l a t l a t l e l l .
- Page 30 MIX PUMP 1. PUMP MOTOR DOES NOT RUN Power to pump is off. Supply power to pump. Low voltage. Check for low voltage. Mix pump hose jammed inside black cover/clamp. Disconnect pump from power source. Remove four cover/clamp thumb screws. Separate cover/clamp halves and remove outer half.
- Page 31 5. REPLACEMENT MIX PUMP HOSE WON'T FEED THROUGH PUMP Feeding hose into discharge hole of mix pump cover. Feed hose into pick-up side of cover. Hose ends not cut squarely. Carefully cut hose end off squarely (no tails). Force feeding too quickly. Gently and slowly assist feeding of hose up into pick-up hose side of cover.
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Page 33: Section 5
SECTION 5 HOW TO ORDER REPLACEMENT PARTS 5.1 HOW TO ORDER REPLACEMENT PARTS Part number, part name, and quantity needed. To assure the receipt of the proper replacement parts, supply your serviceperson with the following information: 5.2 PARTS LIST AND REFERENCE DRAWINGS The following lists and drawings will aid the user when Model number of equipment. - Page 35 AUGER PARTS Drawing Part Index No. Number Qty. Description 2104552 Auger Front Support 149003 Front Bearing 381804 Plastic Flight 694255 Spring 4151178 Auger 624678 Rear Seal "O" Ring 1151859 Rear Seal Adaptor 667868 Rear Seal MISCELLANEOUS PARTS Description Part No. Haynes Spray 12 oz.(340 grams) -------------------- 508017 Petro-Gel Tube 4 oz.
- Page 36 STAINLESS 4-WAY TEE 1177816 / 376016 Figure 7. Mix Pump...
- Page 37 DECALS Qty. Part Number Description 324200 H.P. Manual Reset 324798 Clean-Off-Serve 324797 Standby/Serve 324800 Cab Off-On 324799 Pump Off On 324141 Caution, Haz. Rot. Blade - Front Panel 324509 Cleaning - Right Side 324014 Auger Rotation - Evap. Enclosure Rear 324686 Danger - Start Auto, on Evap.
- Page 51 WARRANTY SOFT SERVE / SHAKE FREEZERS 1. Scope: Stoelting, LLC warrants to the first user (the “Buyer”) that the freezer cylinders, hoppers, compressors, drive motors, speed reducers, auger and auger flights of Stoelting soft serve / shake freezers will be free from defects in materials and workmanship under normal use and proper maintenance appearing within five (5) years, and that all other components of such equipment manufactured by Stoelting will be free from defects in material and workmanship under normal use and proper maintenance appearing within twelve (12) months after the date that such equipment is...
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