Operation Manual 01/30/2003 (Rev. 0)
Contents
1. ninth 15 Mix Pump Hose Reposition 15 Mix Pump Hose Replacement essen 16 Drive Belt Tension Adjustment seem 16 Condenser Cleaning Air Cooled Machines sseneeeeeeeeeeeeeeeeeeeeenn 17 Preventative Maintenance eene 17 Extended Storage ici i age te in ann 17 Troubleshooting Error COGS D E 19 Troubleshooting Error Codes 19 Troubleshooting Machine 21 Troubleshooting Mix Pump ooocoonoocccnnccccononcnonaccnonncnnnnn ccoo nn naar cnn nn rra cnn 23 Replacement Parts Brushes Decals and Lubriceation 25 vcd ae A ceeds 25 Auger Shaft and Front Door Partei 26 Gab eared 27 SECTION 1 DESCRIPTION AND SPECIFICATIONS 1 1 DESCRIPTION The Stoelting U431 I2 floor model machine is pressure fed It is equipped with fully automatic controls to provide a uniform product This manual is designed to assist qualified service per sonnel and operators with installation operation and maintenance of the U431 12 Figure 1 1 Model U431 I2 Machine 26 3 4 39 1 2 AIR COOLED MODELS 68 0 cm nose Air Out i mum a 68 3 4 174 5 cm Air In2. 6 4 CAB TUBING 264235 756204 40 FREEZING CYLINDER 264241 756088 375819 264241 264243 TEE MUST BE INSTALLED IN THIS POSITION 694247 762256 624607 376041 END MUST Ak s BE IN 3177262 SS SPRING 558109 22 ROUNDED END CHECK VALVE MUST BE INSTALLED IN THIS ORIENTATI 2177274 2202059 we Part Number Description Quantity 264235 Clamp Metal 1 4 ID Tubing Cab 8 264241 Clamp Metal 1 2 ID Tubing Cab 4 264243 Clamp Metal 3 8 ID Tubing Cab 8 375819 Elbow Barbed 3 8 1 4 Cab 2 376041 Tee Connector 3 Way Stainless Cab 2 558109 Mix Container Only Cab 2 624607 O Ring Check Valve Body Black Cab 4 694247 Spring Cone Cab Check Valve 2 696152 Clip Lock Check Valve Cab 6 756067 Tubing 1 4 ID Clear Air Line 25 Increments Per Inch Two 13 756079 Tubing 3 8 ID Clear Mix Line 25 Increments Per Inch Two 24 756088 Tubing 1 2 ID Clear Mix Line 25 Increments Per Inch Two 6 756204 Tubing 1 4 ID Pump 50 Box Only Per Inch Cab 756204 40 Tubing 1 4 ID Pump Pre Cut 40 Piece Cab 8 762256 Check Valve Mix Outlet Cab 2 1183187 Check Valve Mix In Line Outer Cab 2 2177274 Clip Retaining Mix Probe To Cover Cab 2 2202059 Pick Up Tube Mix Cab 2 3177229 Cover Rear Mix Container Cab 2 3177262 Cover Front Mix Container Cab 2 27 Gi STOELTING FOODSERVICE EQUIPMENT WARRANTY SOFT SERVE SHAKE FREEZE
3. 48 3 8 122 8 cm ae 91 5 cm E 23 1 2 Y Y Y D 31 U Geng ES 178 9 42 7 8 108 9 FRONT VIEW SIDE VIEW REAR VIEW Figure 1 2 Dimensions 1 2 SPECIFICATIONS Machine with crate 26 3 4 67 9 34 86 4 cm 78 198 1 cm 68 3 4 174 6 cm 78 198 1 cm 48 121 9 39 1 2 100 3 cm 48 121 9 cm 785 lbs 356 0 kg 935 Ibs 424 1 kg 1 PH 3 PH right Machine with crate 26 3 4 67 9 cm 34 86 4 cm 67 1 2 171 5 cm 39 1 2 100 3 cm 1760 lbs 344 7 kg 908 Ibs 411 8 kg 1PH 3 PH left left right left right 32A 20A 20A 32A 30A 30A 50A 1 Phase 220 240 VAC 50Hz or 3 Phase 380 415 VAC 50Hz Two 19 000 Btu hr Cabinet 1 300 Btu hr Compressor R 134a Two 2 hp Water cooled units require 1 2 N P T water and drain fittings Maximum water pressure of 130 psi Minimum A water flow rate of 3 GPM Ideal EWT AIr cooled unns quiso TAA CNU Al space on all sides and open at the top of 50 70 F The machine requires 6 15 2 cm air space on all sides for the cabinet refrigeration system Two 8 gallon 30 28 liters Two 1 33 gallon 5 3 liters 50A SECTION 2 INSTALLATION INSTRUCTIONS 2 1 SAFETY PRECAUTIONS Do not attempt to operate the machine until the safety precautions and operating inst
4. It is recommended that a preventative maintenance schedule be followed to keep the machine clean and operating properly The following steps are suggested as a preventative maintenance guide The United States Department of Agriculture and the Food and Drug Administration require that lubricants used in food zones be certified for this use Use lubricants only in accordance with the manufacturer s instructions A Daily checks Check for any unusual noise or condition and repair immediately B Monthly checks 1 Check drive belts for wear and tighten belts if necessary Refer to section 4 12 2 Check the condenser filter for dirt Refer to section 4 13 4 7 EXTENDED STORAGE Refer to the following steps for winterizing the machine or for storing the machine over any long period A Clean all of the parts that come in contact with mix thoroughly with warm detergent Rinse in clear water and dry all parts Do not sanitize NOTE Do not let cleaning solution stand in machine barrel or mix pump during the shutdown period B Remove disassemble and clean the front door auger shaft and mix pump Leave disassembled during the shutdown period C Place the plastic auger flights in a plastic bag with a moist paper towel This will prevent the flights from becoming brittle if exposed to dry air over an extended period over 30 days D For water cooled machines that are left in unheated buildings or buildings subje
5. Domed Stoelting Swirl Header Panel 1 324887 Decal Boost Transformer 1 508048 Lubricant Spline 2 oz Squeeze Tube 1 508135 Petrol Gel 4 oz Tube 1 513640 Manual Service 1 6 2 TRAYS 417010 744287 Part Number Description Quantity 417010 Grid Drip Tray Metal 1 744252 Tray Drain 1 744272 Tray Drain Cabinet 1 744273 Tray Drain 1 25 6 3 AUGER SHAFT AND FRONT DOOR PARTS 625133 2177427 3158086 3159696 624598 624664 482004 3159696 624598 624614 667868 624678 INSIDE INSERT GROOVE Part Number Description Quantity 149003 Bushing Front Auger Support 2 381804 Auger Flight 12 482004 Knob Air Bleed Valve 2 482019 Knob Front Door Black 4 624520 O Ring Air Bleed Valve Black 2 624598 O Ring Outside Spigot Black 4 624614 O Ring Top amp Bottom Center Spigot Black 2 624664 O Ring Middle Center Spigot Black 1 624678 O Ring Rear Seal Black 4 625133 O Ring Front Door Black 2 667868 Seal Rear Auger Orange 2 694200 Spring Air Bleed Valve 2 694255 Spring Auger Flight 12 2104552 Support Front Auger 2 2110116 Valve Air Bleed 2 2177427 Front Door 1 2187880 Adapter Rear Seal Code 1 2 2202179 Auger Shaft 2 3158086 Spigot Body Center 1 3159696 Spigot Body Outer 2 26
6. solution H When the solution has drained press the Pump and Clean buttons to stop the pump and auger Allow the freezing cylinder to drain completely The machine is now sanitized and ready for adding mix 3 9 FREEZE DOWN AND OPERATION Refer to the following procedures to operate both freez ing cylinders A Sanitize immediately before use B Make sure the display shows the freezing cylinder is off If itis not press the On Off Left or On Off Right button to turn it off C Fill the storage containers with at least 3 gallons of mix D Attach the mix inlet probe to the container and place the container in the refrigerated cab E Press the Pump button to turn the pump on F Place a container under the spigot and open the spigot to allow the mix to flush out about 8 ounces 0 23 liters of sanitizing solution and liquid mix Close the spigot G Open the air bleed valve on the front door by pressing and holding Hold the valve open until the mix level in the freezing cylinder is 1 2 from the air bleed valve H Press the On Off button for the cylinder l Press the PUSH TO FREEZE button NOTE After the drive motor starts there is a 5 second delay before the compressor starts J When the product is ready the display will read SERVE Open the spigot to dispense product NOTE If the product consistency needs to be adjusted use the Technician passcode and go to the Basic Set tings menu Adjust the
7. 14 inches of tubing has fed through the pump then turn the pump off Fig 4 2 Loosen the small clamp at the pick up hose adapter and disconnect the mix pump hose Cut 7 1 2 inches off the end of the mix pump hose Reconnect the mix pump hose to the adapter Continue normal operation Mix hose will automatically reposition itself with the adapter near the black cover NOTE Each hose is long enough for 3 repositions before replacement is required NOTE The hose timer must be reset each time the hose is repositioned or replaced to keep an accurate record of the hose service time Hefer to Section 4 7 I for instrcutions on resetting the timer 12 to 14 gt Figure 4 2 Pump Hose Reposition 4 3 MIX PUMP HOSE REPLACEMENT Mix pump hose must be replaced when tubing cannot be further repositioned every four to eight weeks Failure to comply will result in hose failure and possible pump damage Follow the steps below to replace the hose A Run cleaning solution through pump B Turn the pump off and relieve any pressure by opening the spigot C Disconnect the mix pump hose at each end D Graspthe discharge hose end with one hand and turn the pump on Pull down on the hose until all ofthe remaining hose is removed from the pump Turn pump off E Rotate pump roller assembly so one roller is at the 6 00 position F Use a brush that fits in the opening and clean the pump roller assembly
8. 2 3 MACHINE INSTALLATION Installation must be completed by a qualified electrician refrigeration specialist Incorrect installation may cause personal injury severe damage to the machine and will void fac tory warranty Installation of the machine involves moving the machine close to its permanent location removing all crating set ting in place assembling parts and cleaning A Uncrate the machine B Install the four casters Turn the threaded end into the machine until no threads are showing To level turn out casters no morethan 1 4 maximum then tighten all jam nuts C The machine must be placed in a solid level position NOTE Accurate leveling is necessary for correct drainage of freezing cylinder and to insure correct overrun D Machines with air cooled condensers require a minimum of 6 15 2 cm air space on all sides and an open top for proper circulation E In air cooled machines use a voltmeter to measure incoming voltage If the supply voltage is 215 or less remove the right side panel and move the voltage selector toggle switch to the 208V position F Machines that have a water cooled condenser require 1 2 NPT supply and drain fittings 2 4 INSTALLING WIRING A Refer to the nameplate on the side panel of the machine for specific electrical requirements Make sure the power source in the building matches the nameplate requirements Bring the wires into the junction boxes through the ac
9. Any sanitizer must be used only in accordance with the manufacturer s instructions CAUTION Risk of Product Damage Avoid prolonged contact of sanitizer with machine parts Sanitizer may cause corrosion of stainless steel parts if there is prolonged contact A Prepare 3 gallons of sanitizing solution following manufacturer s instructions and pour it into the storage container B Make surethe display shows the freezing cylinder is off If itis not press the On Off Left or On Off Right button to turn it off NOTE If the freezing cylinder is not off the control will not go into Clean mode This is to protect from ac cidentally going into Clean mode B Press the Pump button to turn the pump ON and open air bleed valve on the front door by pushing valve in and holding C Let sanitizing solution fill the machine barrel to air bleed valve then close the valve by pulling out to lock in place D Press the Clean button to start the auger rotating E Check for leaks when the machine barrel is first pressurized with sanitizing solution 1 Check for leaks at the front door the o ring may not be sealed 2 Check the drain located at the center of the Drip Tray for leaks coming from the rear auger seal 3 Check inside cab unit for leaks at all the hose connections F Use a sanitized soft bristle brush dipped in sanitizing solution to clean mix container G After five minutes open spigot to drain sanitizing
10. BCS with One or Two Bags optional kit When connecting one or two bags the manifold adapt ers must be installed closest to the manifold outlet and the manifold plug s must be placed farthest from the manifold outlet 1 Connect 3 8 9 5mm ID plastic food grade tubing to a bag adapter Secure with hose clamps 2 Slide the hose clip over the free end of the tubing Attach the free end of the tubing to a manifold adapter Secure with a large hose clamp 3 Push the manifold adapter with spring and valve into the left port nearest the manifold outlet of the mix inlet manifold and secure with retaining clip See Figure 2 4 4 If using two mix bags repeat steps 1 to 3 for the middle port 5 Install a manifold plug into each empty inlet and secure with a retaining clip 6 Place the mix bag s into the mix container Connect the bag adapter attached to the left side of the manifold closest to the mix outlet to the mix bag in the back of the mix container C MIX LOW LEVEL INDICATOR ADJUSTMENT The sensitivity of the Mix Low indication can be adjusted to operator preference If more advanced notice of low mix is required loosen the black adjustment knobs located on the sensor brackets at the back of the machine cabinet and slide the bracket upwards If the Mix Low message right side or flashing light left side appears while there is still sufficient mix in the container slide the bracket downward Be sur
11. first with detergent water and then clear water G Connect the new mix pump hose to the pickup hose adapter using the small clamp H Feed one end of the mix pump hose into the pickup hose side left of the black cover NOTE Feed the tube into the clamp so the natural curve of the tube is towards the outside of the black cover This prevents the hose from looping around the black cover twice l Gently push the hose into the black cover until it begins to feed Ji Allow the hose to feed itself through the pump until about 6 15cm remains on the entering side and turn the pump off Connect the mix pump hose to the elbow fitting located on the left side of the mix line manifold using a small hose clamp Be careful not to twist the mix hose Turn the pump on Allow the remaining 6 15cm of tubing to feed through the pump until the hose adapter prevents further feeding and turn the pump off Risk of Product Damage Air Mix Tee must remain below the black cover clamp If the Tee is above the pump the mix may drain into the air compressor resulting in pump damage Connect the free end of the mix pump hose to the 3 way Tee When all connections are complete the 3 way Tee mustbe lower than the black pump housing The pump is now ready to sanitize NOTE The hose timer must be reset each time the hose is repositioned or replaced to keep an accurate record of the hose service time Refer to Section 4 7 I for ins
12. ment property damage NOTICE The signal word NOTICE indicates information or procedures that relate directly or indirectly to the safety or personnel or equipment property TABLE OF CONTENTS Section Description Page 1 Description and Specifications 1 1 DescuplO of 1 1 2 Specification 2 2 Installation Instructions 2 1 Safety sess 3 2 2 Shipment and Transit 3 2 3 rn 3 2 4 Installing WARING coi dd cetera e SEN 3 2 5 4 Mix Pump Hose Installaton nn 4 B Mix Pick p Fose IrstallatiOri 12 2 2 ias 4 C Mix Low Level Indicator Adiustmemt A 6 3 Initial Set Up and Operation 3 1 Operator s Safety Precautions H 3 2 Operating Controls and Indieators sinniiciiiieiissriiiisiisnnrcasiaiciininniens 7 3 9 Disassembly of Parts u a aca 8 3 4 Cleaning Disassembled Parts AAA 9 A Remove Front DOO ris uiii ii 9 B Remove AUJE m 9 3 5 Sanitizing NEE 9 3 6 Cleaning the Machine 9 3 7 Assembling the Machine 10 3 8 SANZI 11 3 9 Freeze Down and Operation 11 3 10 MDI MAIN EM 12 3 11 Operation of Mix 12 Section 4 4 1 4 2 4 8 44 4 5 4 6 4 7 5 5 1 5 2 5 3 5 4 6 6 1 6 2 6 3 6 4 Description Page Maintenance and Adjustments 5
13. notice of any claimed breach of warranty within the applicable warranty period and c delivers the affected equipment to Stoelting or its designated service location in its original packaging crating also within that period Buyer shall bear the cost and risk of shipping to and from Stoelting s plant or designated service location 4 Exclusions and Limitations This warranty does not extend to parts sometimes called wear parts which are generally expected to deteriorate and to require replacement as equipment is used including as examples but not intended to be limited to o rings auger seals auger support bushings and drive belts All such parts are sold AS IS Further Stoelting shall not be responsible to provide any remedy under this warranty with respect to any component that fails by reason of negligence abnormal use misuse or abuse use with parts or equipment not manufactured or supplied by Stoelting or damage in transit THE REMEDIES SET FORTH IN THIS WARRANTY SHALL BE THE SOLE LIABILITY STOELTING AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO EQUIPMENT SUPPLIED BY STOELTING AND IN NO EVENT SHALL STOELTING BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER FOR BREACH OF WARRANTY OR OTHER CONTRACT BREACH NEGLIGENCE OR OTHER TORT OR ON ANY STRICT LIABILITY THEORY January 30 2003 721 013 Rev 0 File Policy Manual Warranty softservel
14. objects in mix Check valve is backwards Overrun setting too low Air leak Air compressor not pumping air Air check valve in backwards 22 Replenish mix supply Disconnect pump from power source Remove four cover clamp thumb screws Separate cover clamp halves and remove outer half Remove jammed hose Clean and re install cover clamp and tighten four thumb screws securely Allow motor thermal overload to reset Refer to diagram for correct hose connections Reposition replace mix pump hose See Section 4 9 Connect mix pump hose to machine Completely thaw mix prior to use Ensure bag is clear of pick up tube Clear blockage Use fresh mix Observe flow arrow for proper orientation Increase overrun setting Tighten all hose clamps Contact local Stoelting Distributor Check arrow for direction of flow Mix pump hose service life is Reposition replace mix pump hose exceeded 2 Out of mix Replenish mix supply 3 Overrun setting too high Decrease overrun setting 4 Pick up leg of mix pump hose is 4 Reposition hose collapsing 1 Feeding hose into discharge hole of 1 Feed hose into suction side of cover mix pump cover Replacement mix gt Hose ends not cut squarely P Carefully cut hose end off squarely no tails ump hose won t Bank 3 Force feeding too quickly 3 Gently and slowly assist feeding of hose up eed through pump into pick up hose side of cover d Pump motor not r
15. rear auger seal is lubricated 2 Rear seal missing or damaged Rear auger seal leaks 3 Seal o ring missing damaged or installed incorrectly 4 Worn or scratched auger shaft 1 Front door knobs are loose 2 Spigot parts are not lubricated 3 Chipped or worn spigot o rings 4 O rings or spigot installed wrong Front door leaks 1 Supply power to machine Turn Clean Off On switch Off for 15 minutes then restart Assemble front door in place Replace drive belt Check system Call distributor for service A minimum of 3 of air space at the back See Section 2 Adjust the CutOut Consistency See Section 3 Remove mix clean reassemble sanitize and freeze down Check system Call distributor for service Add mix to the hopper Wait for automatic reset If condition continues call distributor for service Replace drive belt Turn off cylinder wait for 15 minutes then restart Replace drive belt Turn off cylinder wait for 15 minutes then restart Adjust belt tension Clean lubricant from outside of rear seal lubricate inside of seal and reinstall Check or replace Check or replace Replace auger shaft Tighten knobs See Section 3 Replace o rings Remove spigot and check o ring 5 Inner spigot hole in front door nicked 5 Replace front door or scratched 21 5 4 TROUBLESHOOTING MIX PUMP Pump motor does not run Pump operates but cylinder will
16. seal dry without lubricant Lubricate the inside surface of the rear seal adapter including the adapter o ring and install it onto the auger shaft DO NOT lubricate the outside of the rear auger seal Fig 3 6 Place O Ring Inside Insert Figure 3 6 Rear Seal Assembly D Lubricate the hex drive end of the auger with a small amountof spline lubricant Asmall container of lubricant is shipped with the machine E Screw the springs onto the studs in the plastic flights The springs must be screwed into the flights completely to provide proper compression F Install the two plastic flights onto the rear of the auger and insert it part way into the freezing cylinder 10 G Figure 3 7 Front Door Installthe remaining plastic flights push the auger into the freezing cylinder and rotate slowly until the auger engages the drive shaft Apply athin layer of sanitary lubricant to the inside and outside of the auger support bushing Install the bushing onto the auger support and install the auger support into the front of the auger Rotate the auger support so that one leg of the support points straight up Assemble the air bleed valve o ring onto the air bleed valve Position the o ring into the groove close to the wide part Apply a thin film of sanitary lubricant to the o ring Insert the air bleed valve into the back of the front door Install the compression spring onto the air bleed valve then screw the knob on f
17. the On Off button for the cylinder to turn if off then back on If the error persists contact your Authorized Stoelting Distributor for further assistance Error Code 8 Cab Sensor A Cab Sensor Error E8 indicates a failure of the cabinet sensor or if the sensor is out of range If the control panel displays an E8 press the On Off button for the cylinder to turn if off then back on If the error persists contact your Authorized Stoelting Distributor for further assistance Error Code 9 High Pressure Cutout High Pressure Cutout Errors E9 are usually caused by a dirty or inefficient condenser If the control panel displays an E9 on an air cooled machine check for proper air clearance around the machine If there is an E9 on a water cooled machine check for proper flow from the water supply or kinks in the hoses If the error persists contact your Authorized Stoelting Distributor for further assistance 20 Error Code 10 Auxiliary Sensor An Auxiliary Temperature Sensor Error E10 occurs if the temperature sensor on the control board fails Press the On Off button for the cylinder to turn if off then back on If the error persists contact your Authorized Stoelting Distributor for further assistance Error Code 11 Prime Error The Prime Error E11 occurs when the pump runs for an extended period This usually occurs if there is a leak in the hose or if there is a low mix condition If the error persists contac
18. CutOut Consistency higher to increase the consistency or lower to de crease the consistency Make adjustments in increments of 5 for best results K The machine dispenses product at a reasonable draw rate If the machine is overdrawn the result is a soft product or a product that will not dispense at all If this occurs allow the machine to run for approximately 30 seconds before dispensing more product Adispense rate adjustor is located under the header panel to the immediate right of the spigot handle Turning the knob counterclockwise will decrease the dispense rate L Do not operate the machine when the MIX LOW message is displayed Refill the mix container immediately NOTE The control has a standby mode for Serve 1 and a sleep mode for Serve 1 and Serve 2 After a preset number of freezing cycles in Serve 1 the control will enter the standby mode followed by sleep mode and remain there until someone draws product or presses the PUSH TO FREEZE button In Serve 2 the control directly goes into the Sleep2 mode In the sleep mode the machine will keep the product below 41 5 C Sleep modes do not take the place of cleaning and sanitizing Federal State and local regulatory agencies determine frequency of cleaning and sanitizing 3 10 MIX INFORMATION Mix can vary considerably from one manufacturer to another Differences in the amount of butterfat content and quantity and quality of other ingredients have a direct
19. Gi STOELTING FOODSERVICE EQUIPMENT Model U431 12 OWNERS MANUAL Manual No 513660 March 2011 Owner s Manual For U431 12 Series Combination Soft Serve Shake Pressure Machine This manual provides basic information about the machine Instructions and suggestions are given covering its operation and care The illustrations and specifications are not binding in detail We reserve the right to make changes to the machine without notice and without incurring any obligation to modify or pro vide new parts for machines built prior to date of change DO NOT ATTEMPT to operate the machine until instructions and safety precautions in this manual are read completely and are thoroughly understood If problems develop or questions arise in connection with installation operation or servicing of the machine contact the com pany at the following location STOELTING Ph 800 558 5807 502 Hwy 67 Kiel WI 53042 Fax 920 894 7029 O 2011 Stoelting LLC All Rights Reserved A Few Words About Safety Safety Information Read and understand the entire manual before operating or maintaining Stoelting equipment This Manual provides the operator with information for the safe operation and maintenance of Stoelt ing equipment There are hazards associated with the operation of this machine For this reason safety is emphasized throughout the manual To highlight specific safety information the following safety defini tions are provided to assis
20. NSTALLED IN THIS ORIENTATION Figure 2 3 Mix Pump Connections for Standard Mix Container WhenUsing Bag Connection System BCS with Three Bags optional kit The position of the three bags in the mix container is important The bag that is connected nearest the outlet of the manifold will drain last and should be placed at the back of the mix container The mix low level indicator relies on proper bag placement 1 Connect 3 8 9 5mm ID plastic food grade tubing to a bag adapter Secure with hose clamps 2 Slide the hose clip over free end of 3 8 9 5mm ID plastic food grade tubing Attach the free end of the tubing to a manifold adapter Secure with a large hose clamp or equivalent 3 Push the manifold adapter with spring and valve into the left port nearest the manifold outlet of the mix inlet manifold and secure with a retaining clip 4 Repeat steps 1 to 3 for the middle port and for the right port of the mix inlet manifold Place three mix bags into the mix container 6 Connect the bag adapter attached to the left side of the manifold closest to the mix outlet to the mix bag in the back of the mix container 7 Connect the bag adapter attached to the middle of the manifold to the mix bag in the middle of the mix container 8 Connect the bag adapter attached to the right side of the manifold farthest from the mix outlet to the mix bag in the front of the mix container When Using Bag Connection System
21. RS 1 Scope Stoelting LLC warrants to the first user the Buyer that the freezer cylinders hoppers compressors drive motors speed reducers augers 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 originally installed 2 Disclaimer of Other Warranties THIS WARRANTY IS EXCLUSIVE AND STOELTING HEREBY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE 3 Remedies Stoelting s sole obligations and Buyer s sole remedies for any breach of this warranty shall be the repair or at Stoelting s option replacement of the affected component at Stoelting s plant in Kiel Wisconsin or again at Stoelting s option refund of the purchase price of the affected equipment and during the first twelve 12 months of the warranty period deinstallation reinstallation of the affected component from into the equipment Those obligations remedies are subject to the conditions that Buyer a signs and returns to Stoelting upon installation the Checklist Warranty Registration Card for the affected equipment b gives Stoelting prompt written
22. an Button The CLEAN button initiates Clean Mode Pump Button The PUMP On Off buttons control power to the pump NOTE If the setting for the pump is automatic the Pump On Off buttons will not operate the pump and the display will Show the pumps set to automatic Arrow Buttons lt U The arrow buttons are used by service technicians to navigate through the control readings and settings B SPIGOT SWITCH The spigot switch is mounted to the spigot cam assembly behind the header panel When the spigot is opened to dispense product the spigot switch opens and the Serve Mode begins C DISPENSE RATE ADJUSTOR The dispense rate adjustor is located under the header panel to the immediate right of the spigot handles Turning the knob counterclockwise will decrease the dispense rate MAIN POWER ON OFF Figure 3 2 IntelliTec2 Control 3 3 DISASSEMBLY OF PARTS Before using the machine for the first time complete machine disassembly cleaning and sanitizing proce dures need to be followed Routine cleaning intervals and procedures must comply with the local and state health codes Inspection for worn or broken parts should be made at every disassembly of the machine All worn or broken parts should be replaced to ensure safety to both the operator and the customer and to maintain good machine performance and a quality product Check the wear line on the auger flights on a regular basis Fig 3 3 and rep
23. bearing on the finished frozen product A change in machine performance that cannot be explained by a technical problem may be related to the mix Proper product serving temperature varies from one manufacturer s mix to another Mixes should provide a satisfactory product in the 20 F to 24 F range Diet and low carb mixes typically freeze to proper consistency at higher temperatures When checking the temperature stir the thermometer in the frozen product to get an accurate reading Old mix or mix that has been stored at too high a tempera ture can result in a finished product that is unsatisfactory To retard bacteria growth in dairy based mixes the best storage temperature range is between 33 to 38 F 0 5 to 3 3 C 3 11 OPERATION OF MIX PUMP The mix pumps are operated from the buttons on the IntelliTec2 touchpad When the pump button is pressed On the mix pump motor will start pumping mix into the freezing cylinder When the set pressure is reached the mix pump will shut off automatically 12 Air mix to Freezing Cylinder Figure 3 9 Mix Pump Hose Routing NOTE The mix pump motor is equipped with an internal overload that will trip disabling the pump when the motor is overloaded Consult the troubleshoot ing section for corrective information The internal overload will automatically reset after cooling If the condition continues contact a qualified service person Mix Operation The peristaltic m
24. cess holes in the bottom rear of the freezer NOTE Three phase freezers in areas of unbalanced elec trical loads require special attention when connect ing input electrical power The unbalanced leg of power called wild or high must be connected to L2 in the junction box B Remove the back panel and the junction box cover located at the bottom of the machine C Install permanent wiring according to local code D Check the auger shaft rotation by pressing the Main Power On Off button and pressing the Clean Left and Clean right buttons Auger shaft rotation is clockwise as viewed through the clear front door Press the Clean buttons to stop the augers after checking the rotation Figure 2 2 Mix Hose Installation 2 5 MIX PUMP A MIX PUMP HOSE INSTALLATION Follow the steps below to install the mix pump hose in the cabinet part of the machine 1 Turn the mix pump on by pressing the Pump On Off button on the touchpad Feed one end of the mix pump hose into the entering or pickup hose side left of black cover Fig 2 2 NOTE 9 Turn the pump off Risk of Product Damage Air Mix Tee must remain below the black cover clamp Ifthe Tee is above the pump mix may drain into the air compressor resulting in pump damage 10 Connect the free end of the mix pump hose to the 3 way Tee Fig 2 3 When all connections Feed the tube into the clamp so the natural curve of the tube i
25. ck panel from the machine 15 C On the air compressor side of the pump locate the long slender piston rocking arm The rocking arm downward travel is limited by a stationery cam On the face of the cam there is an overrun setting indicator plate numbered 3 through 8 and an adjustment knob Fig 4 1 The overrun setting is indicated by a pin To adjust overrun loosen the allen head screw located within the center of the adjustment knob with the 5 32 allen wrench provided Rotate the adjustment knob counterclockwise to a higher number for higher overrun or clockwise to a lower number for lower overrun Each number multiplied by 10 approximately represents the overrun percentage i e setting 4 40 overrun Tighten the allen screw then place the wrench back in its clip Replace the lower back panel and secure with the four screws Press the Pump button to turn the pump power On 4 2 MIX PUMP HOSE REPOSITION Mix pump hose must be repositioned every 800 gallons of mix pumped or every 2 weeks Failure to reposition the hose will result in reduced mix pump liquid capacity dispense stoppage popping and possible mix pump hose leakage Follow the steps below to reposition the hose A B Run cleaning solution through pump Turn the pump off and relieve any pressure by opening the spigot C Grasp the pickup hose end of the mix pump hose with one hand and turn the pump on Pull down on the pickup hose end until 12 to
26. ct to freezing the water must be shut off and disconnected Disconnect the water inlet fitting The fitting is located at the rear of the machine Run the compressor for 2 3 minutes to open the water valve the front door must be attached for the compressor to run Blow out all the water through the water inlet Drain the water supply line comingto the machine Disconnectthe water outlet fitting E Disconnect the machine from the source of the electrical supply in the building 18 SECTION 5 TROUBLESHOOTING 5 1 ERROR CODES When the machine experiences a problem one of the following error codes will be displayed on the control panel Each error code directs you to the system location of the malfunction ERROR CODE MALFUNCTION 2 High Torque 3 Run Time 4 Clean 5 Freezing Cylinder Sensor 6 Hopper Sensor single hopper machines 7 Drive Motor 8 Cab Sensor 9 High Pressure Cutout 10 Auxiliary Sensor 11 Prime cab units only 12 Left Hopper Sensor 13 Right Hopper Sensor 21 Spigot Open Time To return the machine to normal operation any error causing condition must be corrected and the power to the affected freezing cylinder must be cycled Turn the power to the freezing cylinder off then back on using the On Off button of the affected freezing cylinder 5 2 TROUBLESHOOTING Error Code 2 High Torque If the control panel displays a High Torque Error E2 the controller has sensedthatthe drive motor is runni
27. e to ease cleanup To remove spilled or dried mix wash the exterior with 90 to 110 F 32 to 43 C soapy water and wipe dry Do not use highly abrasive materials as they will mar the finish A mild alkaline cleaner is recommended Use a soft cloth or sponge to apply the cleaner For best results wipe with the grain of the steel A Clean the rear seal surfaces on the inside of the freezing cylinders B Using sanitizing solution and the large barrel brush provided sanitize the freezing cylinders by dipping the brush in the sanitizing solution and brushing the inside of the freezing cylinders C Remove the drip trays from the front panel Clean and replace the drip trays 3 7 ASSEMBLING THE MACHINE Toassemblethe machine parts referto the following steps NOTICE Petrol Gel sanitary lubricant or equivalent must be used when lubrication of machine parts is specified NOTICE The United States Department of Agriculture and the Food and Drug Administration require that lubri cants used on food processing equipment be certi fied for this use Use lubricants only in accordance with the manufacturer s instructions A Assemble all o rings onto parts dry without lubrication Then apply a thin film of sanitary lubricant to exposed surfaces of the o rings B Install the rear seal o ring Lubricate the outside of the rear seal o ring with sanitary lubricant C Install the stainless steel rear seal adapter into the rear
28. e to tighten the adjustment knobs after properly positioning the sensor Mix Inlet Manifold Retaining Manifold Adapter v Manifold Plug Bag Adapter Figure 2 4 Bag Connection System Optional 6 SECTION 3 INITIAL SET UP AND OPERATION 3 1 OPERATOR S SAFETY PRECAUTIONS SAFE OPERATION IS NO ACCIDENT observe these rules A B C Know the machine Read and understand the Operating Instructions Notice all warning labels on the machine Wear proper clothing Avoid loose fitting garments and remove watches rings or jewelry that could cause a serious accident Maintain a clean work area Avoid accidents by cleaning up the area and keeping it clean Stay alert at all times Know which switch push button or control you are about to use and what effect it is going to have Disconnect power for maintenance Never attempt to repair or perform maintenance on the machine until the main electrical power has been disconnected Do notoperate under unsafe operating conditions Never operate the machine if unusualor excessive noise or vibration occurs 3 2 OPERATING CONTROLS AND INDICATORS Before operating the machine it is required that the op erator know the function of each operating control Refer to Figure 3 1 for the location of the operating controls on the machine For the information regarding error codes displayed on the control pan
29. el refer to the troubleshooting section of this manual High voltage will shock burn or cause death Make sure the display shows the freezing cylinders and pump are off If they are not press the On Off button and Pump button to turn them off prior to disas sembling for cleaning or servicing Do not operate machine with panels removed Dispense Y Rate Adjuster mu Bam Figure 3 1 U431 I2 Machine Controls A INTELLITEC2 TOUCHPAD Main Power On Off The Main Power button is used to supply power to the IntelliTec2 control the freezing cylinder circuits and the storage refrigeration system When the machine is first plugged in the control defaults to the On status with power to the cabinet only If the Main Power On Off button is pressed when the machine is on the machine will turn off and a status message will be displayed on the screen Help Pressing the Help button will display help information dependant on the cursor s location Pressing the Help button again will exit the help screen Selection Button SEL The SEL button is used by service technicians to select menu options Set Button SET The SET button is used by service technicians to save changes when modifying control settings On Off Button Power to the freezing cylinders can then be controlled with the On Off Left and On Off Right buttons Push to Freeze Button Pressing the PUSH TO FREEZE button initiates Serve Mode Cle
30. emove the suction tube from the mix container Open the spigot to remove the mix remaining in the freezing cylinder C Pump2 gallons 7 5 liters of potable water through machine until the water coming out of the spigot is clear D Pump 2 gallons 7 5 liters of 90 to 110 F 32 C to 43 C detergent solution through the machine The use of soft water is recommended along with dishwashing detergents such as Joy Dawn or equivalent E Press the Pump button to turn the pump Off Open the spigot to relieve the remaining pressure F Press the Clean button to stop the cleaning cycle and press the On Off button for the cylinder to turn it Off 3 13 DISASSEMBLY AND INSPECTION OF REMOVABLE PARTS Inspection of removable parts should be made whenever maintenance is performed or when the pump requires disassembly NOTE If the mix line or air line is difficult to remove soften the tubing with a rag soaked in hot water Hose connections may be sprayed with Haynes Sanitary Lubricant for ease of removal Hazardous Moving Parts Revolving pump head can grab mangle and cause serious crushing injury Make sure the display shows the freezing cylinders and pump are off If they are not press the On Off button and Pump button to turn them off Loosen the clamp and remove the air hose from the pump compressor Loosen the clamp and disconnect the mix pump hose Remove the pickup hose and the mix pickup assembly fr
31. epeat as needed Caution Do not use cleaning dissolving type lubricants like wd 40 These lubricants are not bearing friendly and will accelerate bearing wear 1 Air mix tee above black cover clamp Air mix tee must be below black cover clamp 2 Air leak Check stainless steel tube connection Tighten Mix in air hoses all hose clamps 39 hose on wrong air mix tee fitting 3 Refer to diagram for correct hose connections 23 24 SECTION 6 REPLACEMENT PARTS 6 1 BRUSHES DECALS AND LUBRICATION Part Number Description Quantity 208135 Brush 4 X 8 X 16 Barrel 1 208380 Brush 1 4 X 3 X 14 1 208465 Brush 1 X 3 1 2 X 18 1 208467 Brush 3 8 X 1 X 5 1 324103 Decal Caution Rotating Shaft 1 324105 Decal Caution Electrical Shock 1 324106 Decal Caution Electrical Wiring Materials 1 324107 Decal Caution Hazardous Moving Parts 1 324125 Decal Danger Electric Shock Hazard 1 324141 Decal Caution Rotating Blades 1 324208 Decal Attention Refrigerant Leak Check 1 324346 Decal Caution Hazardous Moving Parts 1 324509 Decal Cleaning Instructions 1 324548 Decal Adequate Ventilation 6 1 324566 Decal Wired According To 1 324594 Decal Attention Heat Sensitive 1 324686 Decal Danger Automatic Start 2 324728 Decal Contactor Identification 1 324803 Decal Domed Stoelting Logo Large Header Panel 1 324804 Decal
32. ing sanitiz ing and air drying before assembling Local and state health codes will dictate the procedure required Some state health codes require a four sink process pre wash wash rinse sanitize air dry while others require a three sink process without the pre wash step The following procedures are a general guideline only Consult your local and state health codes for the procedures required in your location A Disassemble all parts B Place allfront door and auger parts in clean 90 to 110 F 32 C to 43 C water and wash thoroughly four sink procedure only C Place all parts in 90 to 110 F 32 C to 43 C mild detergent water and wash thoroughly D Rinse all parts with clean 90 to 110 F 32 C to 43 C water E Sanitize all machine parts following procedures outlined below 3 5 SANITIZING PARTS A Use asanitizer mixed according to manufacturer s instructions to provide a 100 parts per million strength solution Mix sanitizer in quantities of no less than 2 gallons of 90 to 110 F 32 C to 43 C water Any sanitizer must be used only in accordance with the manufacturer s instructions B Place all parts in the sanitizing solution for 5 minutes then remove and let air dry completely before assembling in machine 3 6 CLEANING THE MACHINE The exterior should be kept clean at all times to preserve the luster of the stainless steel A high grade of stainless steel has been used on the machin
33. inger tight Apply athin layer of sanitary lubricantto the o rings on the spigot bodies and install the spigot bodies through the bottom of the front door Fit the front door o ring into the groove on the rear of the front door Place the front door assembly on the mounting studs andthe push front door againstthe machine carefully Secure the front door to the machine by placing the knobs on the studs and tightening until finger tight Do not overtighten Proper o ring seal can be observed through the transparent front door 3 8 SANITIZING Sanitizing must be done after the machine is clean and just before the machine is filled with mix Sanitizing the night before is not effective However you should always clean the machine and parts after using it NOTE The United States Department of Agriculture and the Food and Drug Administration require that all cleaning and sanitizing solutions used with food processing equipment be certified for this use When sanitizing the machine refer to local sanitary regu lations for applicable codes and recommended sanitizing products and procedures The frequency of sanitizing must comply with local health regulations Mix sanitizer according to manufacturer s instructions to provide a 100 parts per million strength solution Mix sanitizer in quanti ties of no less than 2 gallons of 90 F to 110 F 32 C to 43 C water Allow sanitizer to contact the surfaces to be sanitized for 5 minutes
34. ix pump contains one continuous mix pump hose When looking at the face of the peristaltic mix pump the left side of the hose is the mix intake or pickup The right side ofthe hose isthe mix discharge Mix is drawn up the pickup side of the hose and transferred through the discharge side to the machine Fig 3 9 Air Operation The air compressor operates whenever the peristaltic mix pump is running Air enters through a check valve on the piston downstroke The air is discharged through a second check valve on the piston upstroke The air and mix join at the tee and then travel to the machine The overrun adjustment is preset at the factory If an adjustment becomes necessary refer to Section 4 3 12 MIX PUMP CLEANING NOTICE Any cleaning procedure must always be followed by sanitizing before filling machine with mix System Under Pressure Never disconnect hoses from the machine or the pump without first opening the spigot to relieve The mix pump is approved for CIP clean in place It is pressure thoroughly cleaned when the detergent solution is pumped through the machine We recommend completely disas sembling the pump and disconnecting tubing every 14 days for inspection of parts to confirm the CIP has been properly performed If any residue is detected clean or replace those parts as outlined below A With the machine filled with mix press the Clean button Allow the auger to agitate for 5 to 10 minutes B R
35. lace as needed Frequency of cleaning must comply with the local health regulations Figure 3 3 Auger Flight Wear To disassemble the machine refer to the following steps A REMOVE FRONT DOOR 1 Remove the knobs on the front door and remove the door by pulling it off the studs 2 Remove the air bleed valve by unscrewing the knob while holding the valve stem from behind Remove the compression spring and push the air bleed valve through the rear of the front door Figure 3 4 Removing O Ring 3 Remove the spigots through the bottom of the front door 4 Remove all o rings from parts by first wiping off the lubrication using acleantowel Then squeeze the o ring upward to form a loop Fig 3 4 Roll the o ring out of the groove B REMOVE AUGER Remove the front auger support and bushing 2 Remove the auger assembly from the machine Pull the auger out of the machine barrel slowly Asthe auger is being pulled out carefully remove each of the plastic flights with springs 3 Keep the rear of the auger tipped up once it is clear of the freezing cylinder to prevent the rear seal assembly from dropping 4 Wipe the spline lubricant off of the hex end of the auger with a paper towel Remove the rear seal assembly Fig 3 5 5 Unscrew the springs from the auger flights Remove O Ring From Inside Insert Figure 3 5 Rear Seal Assembly 3 4 CLEANING DISASSEMBLED PARTS Disassembled parts require complete clean
36. ng at a high load for 10 or more seconds This may be due to the product consistency adjustment being set too high Press the On Off button for the cylinder to turn it off wait until the product in the freezing cylinder thaws and then turn the cylinder back on Follow the instructions in Section 3 to reduce the product consistency by a few levels If the error persists contact your Authorized Stoelting Distributor for further assistance 19 Error Code 3 Run Time The Run Time Error E3 occurs when the compressor runs continuously for an extended period This error is generally caused by very low mix levels in the mix container or from product breakdown Another common cause results from a restriction preventing mix from entering the freezing cylinder Check the mix in the mix container If the level mix is low add mix If there is a possibility that the mix has broken down clean and sanitize the machine and replace the mix with fresh product Ice crystals in the mix container can clog the mix inlet system and prevent mix from entering the freezing cylinder Thoroughly thaw mix per manufacturer s recommendations To check for ice crystals pour a small amount of product from the mix container through a clean and sanitized sieve or strainer In air cooled machines the Run Time Error may indicate that airflow within the machine has reduced or stopped Check the sides and top of the machine for anything that would restrict airflo
37. not fill Power to pump is off Low voltage REMEDY Supply power to pump Mix pump hose jammed inside black 3 cover clamp Pump motor overloaded Pressure switch on pump is defective Defective motor capacitor 4 5 Check for low voltage Disconnect pump from power source Remove four cover clamp thumb screws Separate cover clamp halves and remove outer half Remove jammed hose Clean and re install cover clamp and tighten four thumb screws securely Allow motor thermal overload to reset Allow internal thermal overload to reset determine overload cause and repair Check mechanical operation and continuity of pressure switch Check motor amperage draw and or capacitor Replace motor or capacitor Note 1 A properly working pump will fill an 8 oz cup with mix in about 9 seconds Note 2 Immediately after a bag change the pump may be unable to reestablish it s prime ith the system at operating pressure In this case turn the pump off Draw 2 3 pints to reduce system pressure to zero Turn pump on Purge remaining air in mix bag and pick up hose Important before connecting the pick up hose to the mix bag remove as much air rom the mix bag as possible Out of Mix Mix pump hose kinked inside black cover clamp Hoses assembled incorrectly Mix pump hose service life is exceeded Mix pump hose not connected to machine Ice crystals in mix Mix bag drawn against adapter Foreign
38. om the mix container Completely disassemble the hose assembly and the check valve Fig 3 10 Place hoses tee check valve assembly and pickup hose adapter in 90 to 110 F 32 C to 43 C mild detergent water and wash thoroughly Use soft bristle brushes to clean inside of fittings Rinse all parts in clean 90 to 110 F 32 C to 43 C water Carefully inspect each part for wear or damage Replace worn or damaged parts Wash the mix tube and the air tube in the cabinet with 90 to 110 F detergent water and brushes provided Rinse with clean 90 to 110 F water Prepare two gallons 7 5 liters of sanitizing solution using a USDA certified grade sanitizing solution Sanitize all removed parts Allow them to air dry Reassemble both hose assemblies per the diagram located on the inside of the cab door Reconnect the assemblies to the pump hose and the discharge hose using the clamps Refer to Section 2 5 Mix Pump Sanitize assembled machine as per instructions outlined in Section 3 11 Figure 3 10 Mix Pump Removable Parts 14 SECTION 4 MAINTENANCE AND ADJUSTMENTS This sectionis intendedto provide maintenance personnel with a general understanding of the machine adjustments It is recommended that any adjustments in this section be made by a qualified person 4 1 OVERRUN ADJUSTMENT The product when served is a combination of air and mix Overrun is a measure of the amount of air blended into the mix O
39. ructions in this manual are read completely and are thoroughly understood Take notice of all warning labels on the machine The la bels have been put there to help maintain a safe working environment The labels have been designed to withstand washing and cleaning All labels must remain legible for the life ofthe machine Labels should be checked periodi cally to be sure they can be recognized as warning labels If danger warning or caution labels are needed indicate the part number type of label location of label and quantity required along with your address and mail to STOELTING ATTENTION Customer Service 502 Hwy 67 Kiel Wisconsin 53042 2 2 SHIPMENT AND TRANSIT The machine has been assembled operated and inspected at the factory Upon arrival at the final destination the entire machine must be checked for any damage which may have occurred during transit With the method of packaging used the machine should arrive in excellent condition THE CARRIER IS RESPON SIBLE FOR ALL DAMAGE IN TRANSIT WHETHER VISIBLE OR CONCEALED Do not pay the freight bill until the machine has been checked for damage Have the carrier note any visible damage on the freight bill If concealed damage and or shortage is found later advise the carrier within 10 days and request inspection The customer must place a claim for damages and or short ages in shipment with the carrier Stoelting Inc cannot make any claims against the carrier
40. s towards the outside of the black cover This prevents the hose from looping around the black cover twice 3 Gently push the hose into the black cover until it begins to feed 4 Allow the hose to feed itself through the pump until about 6 15cm remains on the entering side Turn the pump off Connect the mix pump hose to the elbow fitting located on the left side of the mix line manifold using a small hose clamp Be careful not to twist the mix hose Turn the pump on Allow the remaining 6 15cm of tubing to feed through pump until the hose adapter prevents further feeding are complete the 3 way Tee must be lower than the black pump housing B MIX PICKUP HOSE INSTALLATION The machine may be connected to the standard mix container or up to three prepacked mix bags Follow the instructions below that match your configuration Standard Connection 1 Place the mix pickup assembly through the hole in the cover and install the retaining clip 2 Connect a 24 61cm length of 3 8 9 5mm ID plastic food grade tubing to the mix pickup assembly Secure with a hose clamp 3 Connect the elbow fitting to the free end of the tubing Connect the opposite end of the elbow to 1 4 ID tan tubing on the left side of the pump head Secure with hose clamps Fig 2 3 FREEZING CYLINDER 375819 TEE MUST BE INSTALLED IN THIS POSITION 376041 END MUST BE IN SPRING ROUNDED END CHECK VALVE MUST BE I
41. t your Authorized Stoelting Distributor for further assistance Error Code 12 Left Hopper Sensor The Left Hopper Sensor Error E12 will not occur on the machine Error Code 13 Right Hopper Sensor The Right Hopper Sensor Error E13 will not occur on the machine Error Code 21 Spigot Open Time The Spigot Open Time Error E21 indicates a failure of the spigot switch If the control senses the spigotis open continuously for 10 minutes the machine will go into Sleep 3 mode If the control panel displays an E21 press the On Off button for the cylinder to turn if off then back on If the error persists contact your Authorized Stoelting Distributor for further assistance 5 3 TROUBLESHOOTING MACHINE 1 Power to machine is off Machine does not run 2 Freeze up auger will not turn 3 Front door not in place 1 Drive belt failure Machine will not shut off 2 Refrigeration problem Product is too firm CutOut Consistency setting too high 1 No vent space for free flow of cooling air 2 Condenser is dirty Product is too soft 3 CutOut Consistency setting too low d Auger is assembled incorrectly 5 Refrigeration problem 1 No mix in hopper 2 Drive motor overload tripped Product does not Drive belt failure dispense 4 Freeze up Auger will not turn 1 Worn drive belt Drive belt slipping 2 Freeze up Auger will not turn Not tensioned properly 1 Outside surface of
42. t the reader The purpose of safety symbols is to attract your at tention to possible dangers The safety symbols and their explanations deserve your careful attention and understanding The safety warnings do not by themselves eliminate any danger The instructions or warnings they give are not substitutes for proper accident prevention measures If you need to replace a part use genuine Stoelting parts with the correct part number or an equivalent part We strongly recommend that you do not use replacement parts of inferior quality Safety Alert Symbol This symbol Indicates danger warning or caution At tention is required in order to avoid serious personal injury The message that follows the symbol contains important information about safety Signal Word Signal words are distinctive words used throughout this manual that alert the reader to the existence and relative degree of a hazard WARNING The signal word WARNING indicates a potentially hazardous situation which if not avoided may result in death or serious injury and equipment property damage CAUTION The signal word CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury and equipment property damage CAUTION The signal word CAUTION not preceded by the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in equip
43. trcutions on resetting the timer 4 4 DRIVE BELT TENSION ADJUSTMENT To check belt tension follow the steps below A B Remove a side panel and the back panel Use a Burroughs Belt Tension Gauge to set the tension for the drive belt Set the belt tension to 55 60 lbs If an adjustment is necessary loosen the four motor plate retaining nuts adjust belt tension then retighten the four nuts Using a straightedge check that the drive motor pulley is aligned with the speed reducer pulley Align the pulley if necessary NOTE Belt life will be increased if new drive belts are tightened after two or three weeks of operation 45 CONDENSER CLEANING AIR COOLED MACHINES The condenser requires periodic cleaning To clean the condenser refer to the following steps A Remove the side panel and take outthe condenser filter Visually inspect the condenser filter for dirt B If the condenser filter is dirty vacuum or brush it clean Rinse it with clean water and allow it to dry before replacing it on the machine C Visually inspect the condenser for dirt by shining a light through the coil of the condenser D If the condenser is dirty place a wet towel over the condenser E Using compressed air or a CO tank blow out the dirt from the inside of the condenser Most of the dirt will cling to the wet towel NOTE If the condenser is not kept clean refrigeration ef ficiency will be lost 4 6 PREVENTATIVE MAINTENANCE
44. unning 4 Press the Pump button to turn the pump On Air exiting mix pick 1 Pickup tube check valve missing 1 Contact local Stoelting Distributor up hose 1 Overrun setting too high 1 Decrease overrun setting 2 Mix pump hose service life is Reposition replace mix pump hose Dispensed product exceeded air pops Overdrawing the machine s capacity Reduce dispense rate 4 Recent low mix condition 4 Open spigot fully and allow excess air to escape Overrun too high CAUTION To prevent mix pump damage from dried mix deposits immediately disassemble and clean pump 1 Mix pump hose service life is 1 Remove mix pump hose Disconnect pump exceeded from power source Remove mix pump cover clamp Clean the rollers a small amount of soapy water Clean mix from pump See Section 4 2 for hose replacement Note The action of the air compressor rocking arm creates a repetitive clicking sound during operation This is normal Note The peristaltic mix pump has three squeeze rollers that use self lubricating bearings If squeaking exists with the mix pump hose in place and stops with the hose removed the squeeze roller bearings can be lubricated using a silicone based spray Remove the mix pump hose Disconnect pump from electrical power Remove four cover clamp thumbscrews Remove entire cover clamp as one unit Spray silicone based lubricant on each end of each squeeze roller Spin rollers to work lubricant into bearings R
45. verrun can be expressed in terms of the amount of weight loss for a given volume For example if a pint of liquid mix weighs 18 ounces and a pint of frozen product with air added weighs 12 ounces the overrun is said to be 50 percent 18 oz 12 oz 6 oz 6 12 x 100 50 The overrun can be checked by placing a one pint con tainer on an ice cream scale and zeroing out the scale Then fill a one pint container with frozen product The container should be filled over the top and leveled with a straightedge The product should not contain any air pockets When weighed on an ice cream scale one pint of product should weigh 12 to 13 ounces The mix pump has been preset at the factory to produce a product with approximately 4096 overrun Because of differences in mix formulation temperatures and baro metric pressure this figure may vary It will be necessary for approximately 2 gallons of mix to be pumped through the machine before overrun changes in the product are noticeable Overrun is controlled by the length of the air compressor piston stroke within the piston cylinder Lengthening the stroke within the cylinder will increase overrun Conversely shortening the stroke will decrease overrun To perform an overrun adjustment refer to the following procedure 1 Overrun el Adjustment Figure 4 1 Overrun Adjustment A Press the Pump button to turn the pump power Off Disconnect power sources circuit breakers B Remove the ba
46. w If the error persists after attempting to clear it contact your Authorized Stoelting Distributor for further assistance Error Code 4 Clean If the machine is left in the Clean Mode for more than 20 minutes the control panel will display a Clean Error E4 This condition does not reflecta problem with the machine itself The Clean Error has been programmed into the controller as a safeguard to protect the machine from potential damage caused by the machine being accidentally left in Clean Mode To clear the Clean Error press the On Off button for the cylinder to turn if off then back on Error Code 5 Freezing Cylinder Sensor The Freezing Cylinder Sensor Error E5 indicates a failure of the barrel sensor or if the sensor is out of range If the control panel displays an E5 press the On Off button for the cylinder to turn if off then back on If the error persists contact your Authorized Stoelting Distributor for further assistance NOTE When the machine encounters a Freezing Cylinder Sensor Error the machine will continue to run using preset timers This mode will allow the operator to continue serving product until the machine can be serviced Error Code6 Hopper Sensor single hopper machines The Hopper Sensor Error E6 will not occur on the machine Error Code 7 Drive Motor If the control panel displays a Drive Motor Error E7 the control does not sense current coming from the drive motor Press
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