Stoelting U431 User's Manual
Contents
1. 6 2 31H dl 91 11 d NS INIHSNS l SGUEGE 2 INAV SS een ESeLar Sl INAV cUvOdNM 8 4061 INIZ OL DUJITAV AAHSVM l 876994 El Hd IH We Be X dyl fue l 70167 Cl J1V Id JNIZ 8 14008d34V AJASYM l 06994 LI IH XH 62 X 91 01 37 Mads l 01619 Ol AU 8 X IN8I 9I S MINI l GUS 6 JJNV 14 9 720 81 91 S 3 1N b 568865 3 bl ODE HUNA A y 26799 L CZ X OT idad a W gt SEDES 9 lt OH XH X 81 91 5 dv Ada y 7 S LETJA 31 ld 9 30 ad l Ee y Cay Ole dD Ad 14 l Z86 lle SN Id 68091 vlad NddU 1 09 0 c 80c dHe l c 89091 0 VI AdaUrZL 17 097 0Ec 80c arie a l 7 09 0 2 80c dHc l Bees l NOILdIAIS4 ALO Nd NTT 1301S WILT 412. LTE STOELTING PN QTY DESCRIPTION 3177240 1 TRIM STRIP F 2 31772590 1 TRIM STRIP RIGHT 3 3177236 2 TRIM STRIP REA 4 4177238 BACK PANE 4177239 FRONT SHROUD 6 77242 SIDE PANEL F 7 177243 SIDE PANEL RIGHT 8 3177244 HEADER PANEL 9 77245 TOP PANEL WATER COOLED 0 3177246 DRIP TRAY SUPPORT 11 1154886 SIDE PANEL COVER e 3170804 GASKET INSULATION 3 744252 DRAIN TRAY 4231 4 4177222 TOP PANEL AIR COOLED 11438333 2 NUT HEX 1 4 20 X 7 16 STL ZP 6 314290 COVER SQUARE 4IN F R OUTLET BX 7 647653 18 SCREW MACH 10 24 X 3 8 TRS HD 8 M820309 001 SEALANT DOW CORNING ALUMINUM 9 647899 40 SCREW MACH 174 20 X 378 TRS HD 20 14003 001 STRIP 3 8 WIDE CURK RUBBER el 538917 6 NUT SPEED 10 24X13 16X3 8 35 ev TS Eb 65 65 75 TE LE 66 96 86
3. 7 d 30 LONG ONE O e 0 amp gt GO 8 O S a ITE STUELTING PN DESCRIPTION 756067 PLASTIC 1 41DX7 160D 2 756204 40 2 RPRENE FOOD 25 ID X 40 0 3 264235 8 E SE 3 8 9 16 MIN MAX D 4 375867 2 F UNI 1 4 X1 2 BARB 3 26404 12 C SE 9 16 13 16 STEE 6 756088 26 2 T PLASTIC 1 2IDX3 4HD X 26 0 7 1172864 2 V BODY OUTER 8 696152 2 IP FOR VALVE 9 694247 2 SP COMP 13 16X3 8X3 4 0 762256 2 VA UTLET CHECK MOLDED 11 624607 4 R 11 16X7 8X3 32 SPECIAL e 756088 02 e 1 G PLASTIC 1 21DX3 4UD 3 1151965 e BODY INNER 4 376041 e WAY SSTL AIR MIX 3 756088 30 2 PLASTIC 1 21DX3 40D X 30 0 6 el77272 2 M ICKUP amp PROBE ASSY 7 908135 AS RE T PETRO GEL 40Z TUBE Figure 7 Mix Pump DECALS O ch NN N N N OQ N N N N N G N N SM N N N 8 Part Number 324200 324798 324797 324800 324799 324141 324509 324014 324686 723525 324106 324346 324107 324208 723552 723517 324548 324103 324151 324125 324242 324565 324158 324566 130000 324065 324803 324804 324806 Description H P Manual Reset Clean Off Serve Standby Serve Cab Off On Pump Off On Caution Haz Rot Blade Front Panel Cleaning Right Side Auger Rotation Evap Enclosure Rear Danger Start Auto on Evap Support between belts amp motors support brkt Winterizing A
4. ITE STOELTING FN TY DESCRIPTION dl e 1 INGE WER LEF 2 442192 L 1 INGE UPPER 3 3177ES31 1 ANDI CAB DOOR 4 644093 4 SCREW CAP 174920 X 122 HA 647671 4 SCREW MACH 10 24 X 1 2 FL 6 4177232 1 DOOR CAB 7 647653 4 SCREW MACH 10 24 X 3 8 TRS 8 584200 10 1 PLUG H 50 DIA MTG HOLE 42 NOTCH DOWN STOELTING A Polar Ware Company 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 originally installed 2 Disclaimer of Other Warranties THIS WARRANTY IS EXCLUSIVE AND STOELTING HEREBY DISCLAIMS ANY IMPLIED WAR RANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE 3 Remedies Stoelting s sole obligations and Buyer s sole remedies for any breach o
5. 8212 SN3QNHO 1 21 Se I S3ISNIONDO 1431 G2 36 ITE STOELTING PN QTY1 QTY2 DESCRIPTION 01 02 61423 2 2 SPEED REDUCER 5 21 REDUCTION 2 3177251 1 1 DRAIN TRAY SUPPORT BRACKE 3 644542 8 8 SCREW CAP 3 8 24 X 1 HX HD 644989 12 12 SCREW CAP 1 2 13UNC X 7 8 HX 3 766997 12 12 WASHER SHAKEP
6. 24 Sectio O nee 29 5 1 How to Order Replacement Parts aoi ARA ee 29 5 2 Parts Lists and Reference Drawings 29 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 ILLUSTRATIONS Model U431 Freezer ao AO lk EAC 1 Specifications AAA A err ene ne 1 Bi 6 1 1 EN 3 Water Electrical Connections 4 AOS ROMO ee 4 Mix Hose Installation secciones 5 MIX PUMP nun 6 SWay CC E a N A 7 Mix Inlet Tube amp Probe Assy 02 7 Hose MOE E 7 Operating Controls cios ee 9 Auger Flight Wear amp Front Auger Support Bushing Wear 12 Front Door Disassembly 13 Auger Flight Removal AE 13 Rear Seal 110 1 lt 13 Rear Seal Lubrication 14 Spring SIANO zac rer 14 Front Door Assembly una anne dese 15 Air Bleed EE naa 16 Draining Sanitizer A ee 16 Refrigerated Cabinet 17
7. 3 Gently push the hose into the black cover until it begins to feed Figure 6 Mix Hose Installation 4 Allow the hose to feed itself thru the pump until 6 15cm remains on the entering side 5 Turn pump off 6 Connect mix pump hose to pickup hose adapter using small hose clamp A CAUTION DO NOT TWIST MIX PUMP HOSE 7 Turn pump on 8 Allow remaining 6 15cm of tubing to feed thru pump until hose adapter prevents further feeding 9 Turn pump off 10 Connect free end of mix pump hose to 3 way Tee as shown in Figure 7 When all connections are complete the 3 way Tee must be lower than the black pump housing Figure 8 ITEM STOELTING PN QTY DESCRIPTIHN 1 736067 33 5 TUBING PLASTIC 1 41DX7 160D 2 756204 40 e TUBING NORPRENE FOOD 25 ID X 40 0 LG 3 264235 8 CLAMP HOSE 3 8 9 16 MIN MAX D 4 375867 2 FITTING UNION 1 4 X1 2 BARBED 5 264241 12 CLAMP HOSE 9 16 TO 13 16 STEEL 6 736088 26 2 TUBING PLASTIC 1 21DX3 40D X 26 0 LG 7 1172864 2 VALVE BODY DUTER 8 696152 LOCK CLIP FOR VALVE 9 694247 2 SPRING COMP 13 16X3 8X3 4 10 762256 2 VALVE OUTLET CHECK MOLDED 11 624607 4 RING D 11 16X7 8X3 32 SPECIAL 12 756088 02 2 TUBING PLASTIC 1 21DX3 40D X 2 0 LG 13 1151965 2 VALVE BODY INNER 14 376041 2 TEE 3 WAY S STL AIR MIX 15 756088 30 2 TUBING PLASTIC 1 21DX3 40D X 30 0
8. I Assemble the air bleed valve O ring onto the air bleed valves Position the O ring in groove close to the wide part Apply a thin film of sanitary lubricant to the O rings J Insert the air bleed valves from the back of the front door Install compression springs onto air bleed valves then screw knobs on finger tight K Apply athin film of sanitary lubricant to the door seal O rings and fit into the grooves on the rear of the front door L Place the front door assembly onthe mounting studs and push front door against the freezer carefully M Secure front door assembly by placing the knobs on the studs and alternately tighten opposite corners until finger tight only Do not overtighten Proper O ring seal can be observed through the transparent front door N Move the spigot handles to the closed position 3 9 SANITIZING Sanitizing must be done after the freezer is clean and just before the freezer is filled with mix Sanitizing the night before is not effective However you should always clean the freezer and parts after using it 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 freezer refer to local sanitary regula tions for applicable codes and recommended sanitizing products and procedures The frequency of sanitizing must comply with local he
9. Mix can vary considerably from one manufacturer to another Differences inthe amount of butter fat content and quantity and quality of other ingredients have a direct bearing on the finished frozen product A change in freezer 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 inthe 17 to 20 F 7 to 6 C range Diet and low carb mixes typically freeze to proper consis tency at higher temperatures When checking the temperature stir the thermometer in the frozen product to read the true temperature Mix does not improve with age Old mix or mix that has been stored at too high a temperature can result in a finished product that is less than satisfactory from the appearance and taste standpoint To retard bacteria growth in dairy based mixes the best storage temperature range is between 36 to 40 F 2 2 to 4 4 C 3 12 OPERATION OF MIX PUMP The pump switch is located on the front of the freezer Whenthe pump switch is placed in the ON position the mix pump motor will be actuated to pump mix into the freezer cylinder When the setpressureis reached the mix pump will shut off automatically When the switch is placed in the OFF position the mix pump will be inoperative NOTE The mix pump motor is equipped with an internal overload that will trip disabling
10. Dispensing Product rege 17 A 18 Removable Pals EE 19 Cleaning Air Le 19 Cleaning Feed Tube 19 Mix Pump TUBE Routing see Ee 19 POIEMIBOEFEL k 21 OverrunAdjustment a 21 Temperature Control Cab AEN 22 Belt Adjustment ANEN 23 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 This manual is designed to assist qualified personnel and operators in the installation operation and maintenance of the Stoelting Model U431 pressure freezer 26 3 4 68 INSIDE DIMENSIONS WIDTH 23 58 HEIGHT 26 3 4 68 DEPTH 20 00 51 1 65 3 4 167 49 1 2 RIGHT SIDE Figure 2 Specification 1 JUNCTION _ BOXES d dr ei Fe p GP 1 WATER WZ C WATER INLET OUTLET 1 2 SPECIFICATIONS DIMENSIONS Width 26 3 4 68cm Depth 39 3 4 101cm Height 65 3 4 16760 WEIGHT 925lbs 419 5 kg 975lbs w Crate 442 kg 1PH 3 PH 1 PH 3 PH En Left Side Right Side Left Side Right Side Left Si
11. LG 16 2177072 2 MIX PICKUP 8 PROBE ASSY 17 508135 AS REQ LUBRICANT PETRH GEL 40Z TUBES 16 5 LONG Wgd 0 T Le SCH EN fa See A Connect 1 2 inch 12 7mm I D plastic food grade tubing to mix check valve 11610 7 and then to the mix container Observe check valve flow arrow Secure with hose clamps Then place assembly thru hole in cover and install retainer clip See Figure 9 Connect 1 2 inch 12 7mm I D plastic food grade tubing between the large port of air mix tee and refrigerated mix transfer line Secure with large hose clamp or equivalent See Figure 9 A CAUTION AIR MIX TEE MUST REMAIN BELOW THE BLACK COVER CLAMP IF THE TEE IS ABOVE THE PUMP MIX WILL DRAIN TO THE AIR COMPRESSOR RESULTING IN PUMP DAMAGE D Connect mix low cords Figure 9 CH i TO i MIX O om Figure 7 Mix Pump 6 Refrigerated Mix Transfer Line Large Port gt lt 3 way Tee Air Mix N L S 2 Figure 8 3 way Tee Low Mix Cord y Cover y Retainer Container Clip Figure 9 Mix Inlet Tube 8 Probe Assy Clip H Figure 10 Hose Holder SECTION 3 INITIAL SET UP AND OPERATION 3 1 SAFETY PRECAUTIONS SAFE OPERATION IS NO ACCIDENT observe these rules A B C Know the freezer Read and understand the operat ing instructions Notice all warning labels on the freezer Wear proper
12. Safety 2177072 38mm 1 5 inch Spigot Ext 3 3159696 2 Spigot Outside 2177073 64mm 2 5 inch Spigot Ext 4 3158086 1 Spigot Center 2177074 76mm 3 inch Spigot Ext 5 624598 4 O Ring 232734 Rosette Cap 6 624664 1 O Ring CS 624677 Castle Top O Ring 7 625133 2 O Ring Silicone 1 2177588 1 Door w Pins CE 8 508135 AsReq Lubricant Petrogel 624654 O Ring Spigot Extension 9 482019 4 Knob Black 2158070 38mm 1 5 inch Spigot Ext 10 624614 2 O Ring CS 2159688 64mm 2 5 inch Spigot Ext 11 624520 2 O Ring 2157869 76mm 3 inch Spigot Ext 12 694200 2 Spring Comp 232732 Rosette Cap 13 482004 2 Knob NOTE 14 2110116 2 Valve Stem If you are replacing a front door without side grooves you mustorder the extensions and rosettes also 29 ITEM STOELTING FN QTY DESCRIPTION M820172 001 ADHESIVE ZTITE 242 31 2 482004 3 KNOB 3 2382 97 6 NUT HEX FULL 10 24 ZP 4 3156992 1 CAM CENTER 3157854 i CAM RIGH 6 3157 835
13. be mixed once old solutions become ineffective 3 4 DISASSEMBLY OF FREEZER PARTS Moving machinery can grab mangle and dis member Place the CLEAN OFF SERVE toggle switch in the OFF position before disassembling for cleaning or servicing Placing the CLEAN OFF SERVE toggle switch in the SERVE position dur ing cleaning or servicing may result in serious personal injury Before using the freezer for the firsttime complete freezer disassembly cleaning and sanitizing procedures will 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 freezer for cleaning or other purposes All worn or broken parts should be replaced to ensure Safety to both the operator and the customer and to maintain good freezer performance and a quality prod uct Two normal wear areas are the auger flights and front auger support bushing see Figure 12 To disassemble the freezer refer to the following steps Wear Line Figure 12 Auger Flight Wear amp Front Auger Support Bushing Wear A Disassembly Of Front Door 1 Remove the front door by turning off the circular knobs and then pulling the front door offthe studs 2 Removethe air bleed valve by unscrewing the knob while holding the valve stem from behind Remove the compression spring and push air bleed valve through the rear of the front door 3 R
14. clothing Avoid loose fitting garments and remove watches rings or jewelry which could cause a serious accident Maintain a clean work area Avoid accidents by cleaning 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 itis going to have Disconnect electrical power for maintenance Never attempt to repair or perform maintenance on the freezer until the main electrical power has been disconnected Do not operate under unsafe operating condi tions Never operate this freezer if unusual or exces sive noise or vibration occurs 3 2 OPERATING CONTROLS AND INDICATORS Before operating the freezer it is required that the opera tor know the function of each operating control Refer to Figure 11 for the location of the operating controls on the freezer Standby Clean Serve Dispense Rate Adjusters Cab Indicator Light Pump Switch Figure 11 Operating Controls M A WARNING The CLEAN OFF SERVE switch must be placed in the OFF position when disassembling for cleaning or servicing The freezer must be dis connected from electrical supply before remov ing any access panel A Spigot Switch When the spigot handle is opened the SPIGOT switch will startthe auger drive and refrigeration systems When the spigothandle is closed the drive Clean Off Serve Switch The CLEAN OFF SERVE switch is a three position toggle swit
15. dry Do not use highly abrasive materials as they will mar the finish A mild alkaline cleaner is recom mended Use a soft cloth or sponge to apply the cleaner For best results wipe in the direction of the grain of the steel A Cleanthe rear seal surface from inside of the freezer barrel B Using this sanitizing solution and the large barrel brush provided sanitize the barrel by dipping the brush in the sanitizing solution and brushing the inside of the barrel C Removethereardriptray by pulling from side panel Clean and replace drip tray 3 8 ASSEMBLING FREEZER To assemble the freezer parts refer to the following steps NOTICE Petro Gel sanitary lubricant or equivalent must be used when lubrication of freezer 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 lubri cation Then apply a thin film of sanitary lubrication to exposed surfaces of the O rings B Lubricate rear seal area on auger shaft with a thin layer of sanitary lubricant Install the rear seal O ring Lubricate outside of rear seal O ring with sanitary lubricant Install stainless steel rear seal adapter into rear seal dry without lubricant Lubricate inside surface of rear seal adapt
16. fed through the pump then turn the pump off 4 Loosen small clamp at the pick up hose adapter and Viewed from Back disconnect mix pump hose 5 Cut 7 1 2 19 cm off the end of the mix pump hose 6 Reconnect mix pump hose to adapter 7 Continue normal operation Mix hose will automatically reposition itself with adapter near black cover NOTE Each hose is long enough for 3 repositions before replacement is required Record each event on Hose Service Record decal 4 5 MIX PUMP HOSE REPLACEMENT NOTE Mix pump hose must be replaced when tubing can not be further repositioned every four to eight weeks Failure to comply will result in hose failure and possible pump damage 1 Run cleaning solution through pump 2 Turn pump off and relieve any pressure by opening the spigot A WARNING THE MIX PUMP SWITCH MUST BE IN THE OFF POSITION WHEN SERVICING OR CLEANING PUMP A CAUTION NEVER DISCONNECT HOSES FROM FREEZER OR PUMP WITHOUT FIRST OPENING SPIGOT TO RELIEVE PRESSURE 3 Disconnect mix pump hose at each end 4 Grasp the discharge hose end with one hand and turn the pump on Pull down on the hose until all of the remaining hose is removed from the pump 5 Connect new mix pump hose to pick up hose adapter using small clamp 6 Insert free end of hose into the pick up suction side hose side of the black cover Gently push the hose into the black cover until it begins to self feed Allow the
17. is 1 2 2 7 cm below air bleed valve then release valve and pull closed to lock in place Startthe compressor and drive by placing the CLEAN OFF SERVE switch in the SERVE position The product will be ready to serve after the compres sor and drive have cycled off or in approximately minutes The refrigeration is automatically actuated when the spigot is opened For normal dispensing open the spigot no more then 90 This is when the handle knob is pointed directly away from the front door This position provides excellent control over the product and aids in making desired shaped portions Spigot Rate Adjusters are located under the Header Panel to the immediate right of each Spigot Handle Turning the Spigot Rate Adjuster clockwise will increase the dispense rate see Figure 22 The freezer is designed to dispense the product ata reasonable draw rate If the freezer is overdrawn the result will be a soft product and air pops If this should occur allow the freezer to run for approximately 30 seconds before dispensing additional product After a while the operator will sense or feel when the freezer is beginning to fall behind and will slow down on the rate of draw so as not to exceed the freezer s capacity Do not operate the freezer when the MIX LOW light is on or with less than 1 3 4 4 4 cm of mix in the mix container Refill the mix container immediately Figure 22 Dispensing Product 3 11 MIXINFORMATION
18. the pump when the motor is overloaded Consult the trouble shooting section for corrective information The internal over load will automatically reset after cooling If the con dition continues contact a qualified service person CAUTION Risk of Product Damage Mix pump hose must be repositioned every 1 2 weeks or 60 hours of operation Failure to comply will result in reduced mix pump liquid capacity dispense stop page popping and possible mix pump hose leak age Hose leakage may damage the pump roller as sembly and void the factory warranty A Mix Operation The peristaltic mix 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 suction or pickup The right side of the hose is the discharge Mix is drawn up the suction side of the hose and transferred thru the discharge side to the freezer see Figure 23 B Air Operation The air compressor operates whenever the peristaltic mix pump is running Air enters thrua check valve on the piston downstroke The air is discharged thru a second check valve on the piston upstroke The air and mix join at the tee and then traveltothe freezer Discharge Figure 23 Mix Pumps C Theover run adjustmentis presetatthe factory lf an adjustment becomes necessary refer to Section 4 NOTICE Any cleaning procedure must always be followed by sanitizing before filling freezer with mix Refer to sect
19. to avoid damage to machine surfaces and parts With proper daily use of STERA SHEEN or it s equivalent there is no need for the use of a DELIMER DO NOT USE BLEACH BLEACH HAS ABSOLUTELY NO CLEANING PROPERTIES BLEACH IS CORROSIVE It can and will damage components of the machine causing premature wear and metal corrosion GENERAL PURPOSE CLEANERS General purpose cleaners do not have the ability to remove milkstone Milkstone will become a problem if not remedied with additional products and procedures THE USE OF CHLORINE TEST STRIPS Test strips are used to determine concentrations of active chlorine in sanitizing solutions To use the strips tear off a small portion and submerge it into the sanitizing solution Then compare the color change to the color key on the side of the test strip dispenser to determine the approximate chlorine concentration The ideal concentration of chlorine needs to be 100 ppm as stated by the FDA NOTE Follow the directions on the container for proper concentration There are two main factors that contribute to falling chlorine concentrations in a sanitizing solution 1 PRODUCT USE As the chlorine in the solution is being used chlorine concentrations fall 2 TIME As time passes small amounts of chlorine evaporate from the solution Thatis why you can smell it Sanitizing solutions should notbe allowed to fall below 100 ppm chlorine New solutions should
20. 3 i CA EF 7 766948 6 WASHER SHAKEPRHHF 10 ZINC 8 766430 6 WASHER ROUNL 9 21569397 1 ANDLE CENTER 0 2156999 1 ANDLE 11 2137850 1 ANDLE RIGH e 221617 3 SPACER BUSHING 2 1154703 3 WASHER 4 625440 3 RING RETAINING 1 005 DIA Vk 3 NOB 30 AUGER PARTS Drawing Part Index No Number Qty Description 1 2104552 1 Auger Front Support 2 149003 1 Front Bearing 3 381804 6 Plastic Flight 4 694255 6 Spring 5 4151178 1 Auger 6 624678 1 Rear Seal O Ring 7 1151859 1 Rear Seal Adaptor 8 667868 1 Rear Seal MISCELLANEOUS PARTS Description Part No Haynes Spray 12 oz 340 grams 508017 Petro Gel Tube 4 oz 113 grams 508135 Spline Lubricant 2 oz 57 grams 508048 Brush 4 x 8 x16 10cm x 20cm x 40 5cm 208135 Brush 2 5 x 4 x12 6 5cm x 10cm x 30 5cm 208146 Brush 25 x 4 x14 6cm x 10cm x 35 5cm 208380 Brush 1 x3 5 x18 2 5cm x 9cm x 45 5cm 208465 Drip Tray 744273 Drip Tray Grid 417006
21. CKET 8 2147034 2 2 PULLEY 7 00 PD MACHINED 9 4177217 1 1 EVAP WELDMENT amp FOAMED 0 4177208 1 1 FRAME WELDMENT 1 522833 4 4 FAN MOTOR 2 538280 16 16 NUT 8 32 3 766948 16 16 WASHER 10 SHAKEPROOF 14 53835 16 16 NUT HEX 5 16 18 LOCKING FLANGE 5 422156 2 2 GROMMET KIT WITH SLEEVES 6 4177262 1 1 CONDENSER SHROUD 7 644371 8 8 SCREW CAP 5 16 18 X 1 3 4 HX 8 76721 8 8 WASHER FLAT 5 16 7 8X3 8X14GA 19 282025 2 COMPRESSOR 208 230 60 1PH 20 282026 2 COMPRESSOR 208 230 60 3PH 21 64908 3 3 SCREW DRILL amp TAP 8 18 X 1 2 22 522869 2 DRIVE MOTOR 3PH 23 522844 2 a DRIVE MOTOR 1PH SER 0 16058 23 522856 2 DRIVE MOTOR 1PH SER 16059 PLUS 24 152294 4 4 BELT V 39 2 O L X 38 3 P L 25 3171824 4 4 FAN MOTOR BRACKET 26 538297 16 16 NUT 10 24 20 27 162067 4 4 FAN BLADE 9 28 4177261 2 2 CONDENSER BRACKET 29 644091 14 14 SCREW CAP 1 4 20 X 1 2 HX HD 30 284082 1 1 CONDENSER 31 2177069 2 2 BLOCKOFF PANEL 32 538395 4 4 NUT HEX 1 2 13X3 4X5 16 ZP 33 538335 6 6 1 4 20 SPIN LAN ZC 34 463010 8 8 THREADED INSERT 1 4 20 35 4177070 1 1 UPPER BLOCKOFF PANEL 36 222997 1 1 BUSHING SNAP 9 32 ID 3 8 HOLE 37 584200 04 1 1 PLUG HOLE 375 DIA MTG HOLE 58 766964 12 12 WASHER SHAKEPROOF 1 4 ZINC 39 766456 4 4 WASHER ROUND 5 8X9 32 STEEL 40 M820323 001 001 TAPE INSUL 1 X 1 4 IN THICK 41 766940 16 16 WASHER SHAKEPROOF 8 ZINC PLATE 42 M820172 001 001 ADHESIVE L
22. COOLED FREEZERS The condenser requires periodic cleaning To clean the condenser refer to the following steps NOTE Some freezers have acondenser filter to clean re move and wash in warm soapy water Rinse in clean water and shake dry taking care not to damage filter in any way A Visually inspect the condenser for dirt B If the condenser is dirty place a wet towel over the condenser C Using compressed air or CO2 tank blow out the dirt from the back of the condenser Most of the dirt will cling to the wet towel sn THIS PROCEDURE EMITS A LOUD NOISE D An alternative method is to clean with a condenser brush and vacuum NOTE Ifthe condenser is not kept clean loss of refrigera tion efficiency will result 4 9 PREVENTATIVE MAINTENANCE Itis recommendedthatapreventative maintenance sched ule be followed to keep the freezer clean and operating properly The following steps are suggested as a preven tative maintenance guide ZN WARNING NEVER ATTEMPT TO REPAIR OR PERFORM ANY MAINTENANCE ON FREEZER UNTIL ALL MAIN ELECTRICAL POWER HAS BEEN DIS CONNECTED The United States Department of Agriculture and the Food and Drug Administration require that lubricants used infood zones be certified forthis 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 Month Checks 1 Check drive belts for w
23. E ITEM 20 ON BACK PANEL amp INSIDE OF FREEZER IN BETWEEN JUNCTION BOXES SECURE ITEM 4 WITH ITEM 5 TO CENTER SPIGOT HANDLE NOTE FOR 4177327 05 USE QTY 1 OMIT ITEMC26 gt DECAL AND USE ITEMC34 gt DECAL FOR 4177327 06 USE QTY e HMIT ITEM 26 DECAL AND USE ITEM 34 gt DECAL Stoelting LLC Commercial Products 502 Hwy 67 Kiel WI 53042 MODEL ID PLATE PLACE ITEM 17 gt INSIDE HEADER PANEL 8 PLACE WIRING DIAGRAMS INSIDE OF BAGS ITEM 22 IS TO BE PLACED ON THE HUTSIDE P MADE IN USA DECAL PERGE ses OF OF ITEM MODEL 1 PLATE an 777 Loza BOTH SIDES R a e bb gt 187 AS BOTH SIDES Le 6 Ir SEE NOTE 3 MODEL LD PLATE x s lt X gt X 4 00 a N a k LI O UI TI 1764 STOELTING PN 072 DESCRIPTION 6 3 A 38434 DECAL HAZARDDUS MOVING PARTS 4 SECURE ITEM 24 WITH ITEM 5 gt TH INSIDE OF JUNCTION BOX CTE PIGTAILS ONHARNESSES AIR CODLED ONLY CALLED DUT ON BO
24. ING SHAFT 27 324346 2 DECAL CAUTION HAZARDOUS MOVING 12 324686 4 4 DECAL DANGER AUTOMATIC START 28 324797 2 2 DECAL STANDBY SERVE SWITCH 13 324107 2 2 DECAL CAUTIHN MOVING PARTS 29 324242 1 1 DECAL TEMPERATURE CONTROL 14 324125 7 DECAL ELECT SHOCK HAZARD 30 324200 2 2 DECAL MANUAL RESET 15 324151 2 2 DECAL FIELD CONNECTIONS 31 3 16 324198 DECAL ATTENTIDN INSTALLER 32 324014 2 DECAL ARROW 17 130000 2 BAGENVELOPE FRONT LOADING 33 314796 2 2 DECAL FREEZING 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 THE CARRIER IS RESPONSIBLE FOR ALL DAMAGE IN TRANSIT WHETHER VISIBLE OR CONCEALED Do not pay the freight bill until the freezer has been checked for dam age Have the carrier note any visible damage on the freight bill If concealed damage and or shortage is found later advise the carrier within ten days and request in spection The customer must place claim for damage and or shortages in shipment with the carrier Stoelting Inc cannot make any claims against the carrier 2 3 FREEZER INSTALLATION AN ARNING INSTALLATION MUST BE PERFORMED BY A QUALIFIED ELECTRICIAN REFRIGERATION SPECIALIS
25. M AS LOOSE ITEMS 19 ve ne lt PLACE ITEMS lt 19 gt amp 23 ON BACK SIDE OF JUNCTION BOX COVER GENERAL MARKET ONLY 53 JUNCTION BOX covers C NOTE PLACE ITEM lt A IN SIMILAR LOCATIONS ON OPPOSITE SIDE DF FREEZER amp DN CONDENSER BRACKET DECAL ORIENTATION D D NOTE Figure 3 Decal Locations ag ona w ars mang ee PLAGE ITEM cia ON INSIDE OF FREEZER ON REDUCER SUPPORT BRACKET BETWEEN BELTS ES SAT Bb ge ae ae ITEM STOELTING PN QTY1 0172 DESCRIPTION 03 04 1 324801 e DECAL MIX LOW 18 324584 1 1 DECAL ADEQUATE VENTILATION 39 e 324798 2 2 DECAL CLEAN OFF SERVE SWITCH 19 324158 2 2 DECAL COPPER CONDUCTORS ONLY 3 324141 1 1 DECAL CAUTION ROTATING BLADES 20 324106 2 e DECAL CAUTION WIRING MAT L 4 723526 1 1 TAG READ MANUAL 8 ALL DECALS 21 324107 4 4 DECAL CAUTIHN MOVING PARTS 5 324346 3 3 DECAL HAZARDOUS MOVING PARTS 22 324566 2 E DECAL WIRED ACCORDING TO 6 324393 1 1 DECAL STHELTING SWIRL LOGO 23 324015 2 DECAL 2X1 1 4 BLK DN WHITE 7 324800 1 1 DECAL CAB ON OFF 24 723552 2 2 TAG CAUTION SUPPLY VOLTAGE 8 324799 2 2 PUMP 10 7 26 324804 1 1 DECAL GM HEADER STOELTING SWIRL 9 324208 2 e DECAL REFRIG LEAK CHECK 26 324803 1 1 DECAL GM HEADER STOLETING LOGOD 10 324509 1 1 DECAL CLEANING SS 8 SHAKE 26 324806 1 1 DECAL A amp W HEADER FOR 0431 amp 4231 11 324103 2 2 DECAL CAUTIHN RHTAT
26. OCTITE 242 31 43 538928 4 4 NUT SPEED 1 4 20X63 64X1 2 44 714006 001 001 1 X 100 ROLL RUBBER 45 644106 4 4 SCREW CAP 1 4 20 X 5 8 HX HD 46 714003 001 001 3 8 X 100 ROLL RUBBER 47 628007 5 2 RIVET 1 8 48 524091 5 5 MOUNT_TIE 49 647653 6 6 SCREW MACH 10 24 X 3 8 TRS HD 50 3177257 1 1 CAB EVAPORATOR ASSY 51 2177235 1 1 BRACKET DRIP TRAY CAB 52 M850004 ASREQ ASREQ RTV DOW CORNING 734 53 M980178 ASREQ ASREQ PERMAGUM 54 324724 2 2 DECAL TUBE FEED 55 368102 2 2 FILTER AIR 56 M820172 001 001 ADHESIVE LOCTITE 242 31 57 538296 4 4 NUT HEX 10 24 X 3 8 SS 58 223005 2 2 BUSHING SNAP 1 2 ID 625 HOLE 59 422057 2 2 GROMMET RBR 3 8X5 8X1 4X1 16 60 717917 SV 2 2 SWITCH AIR PRESSURE 61 538335 10 10 NUT HEX 1 4 20 X 7 16 STL ZP 62 3177221 2 2 PLATE PUMP MOUNTING 63 522229 2 2 PUMP MOTOR ONLY 64 266018 2 2 CLIP ADHESIVE BACKED J 65 778027 2 2 WRENCH ALLEN 5 32 X 3 0 LG 66 647915 10 10 SCREW MACH 1 4 20 X 7 8 TRS HD SSTL 67 422074 1 1 GROMMET RUBBER BLACK 68 558113 2 2 PAN MIX CONTAINER 69 3177262 2 2 COVER FRONT 70 3177229 2 2 COVER REAR 71 744272 1 1 DRIP TRAY CAB 39 A DD S x 2 U A M I O MD O 4 A
27. Q ASREQ RTV DOW CORNING 734 41 M980178 ASREQ ASREQ PERMAGUM 4e 3e47e4 2 DECAL TUBE FEED 43 538296 4 4 U EX 10 24 X 3 8 SS 44 422057 2 GR ET RBR 3 8X5 8X1 4X1 16 45 717917 SV 2 2 SWITCH AIR PRESSURE 46 338333 10 10 U EX 174920 X 7218 SIL ZP 47 3177221 e e PLATE PUMP UNTING 48 522229 2 2 PUMP R Y 49 266018 2 2 CLIP ADHESIVE BACKED J 90 778027 2 WRENCH ALLEN 5 32 X 3 0 LG ol 647915 10 10 SCREW MACH 1 4 20 X 7 8 TRS HD SSTL oe 422074 1 1 GR ET RUBBER BLACK 33 jals 2 e PAN MIX C AINER 34 3177262 2 COVER FRONT So 13177229 2 2 COVER REAR 56 744272 1 1 DRIP TRAY CAB CO N NNNN 6 SS 06000000 f NYG90000002800000000 ara All mv E EE Ness LE BEIBE 6E Sy 38 ITEM STOELTING PN QTY1 QTY2 DESCRIPTION 01 02 1 614231 2 2 SPEED REDUCER 5 2 1 REDUCTION 2 3177251 1 1 DRAIN TRAY SUPPORT BRACKET 3 644542 8 8 SCREW CAP 3 8 24 X 1 HX HD 4 644985 8 8 SCREW CAP 1 2 13UNC X 7 8 HX 5 766997 8 8 WASHER SHAKEPROOF 1 2X7 8 6 707226 4 4 WASHER FLT 1 2X1 3 8X9 16HV_ZP 7 3177219 1 1 REDUCER SUPPORT BRA
28. REE ae a er Ao ka 5 Section 3 lt lt u ai 9 3 1 Safety Precautions aaa 9 3 2 Operating Controls and Indicators 9 8 3 Important Information Regarding Cleaning and Sanitizing 11 3 4 Disassembly of Freezer arts 12 3 5 Cleaning Disassembled Parts AAA 13 3 6 Sanitize Freezer Parts sucinta 18 3 7 Cleaning the Freezer sora 14 3 8 Assembling the Freezer een 14 3 9 sed REE 16 3 10 Initial Freeze down and Operation 16 3 11 MiX ALS 51 A 17 3 12 Operation of Mix Pump caian 18 3 13 Mix Pump Cleaning EEN 18 3 14 Disassembly and Inspection of Removable Parts 18 SECUO A ai ANNA 21 4 1 Freezer Adjustment AEN 21 4 2 Product Temperature Adjustment 21 4 3 Overrun Adjustment AAA 21 4 4 Mix Pump Hose Reposition nee au 22 4 5 Mix Pump Hose 0132 1 111 22 4 6 Cab Temp AUSTEN aia 22 4 7 Drive Belt Tension Adiustmenmt aaa a 22 4 8 Condenser Cleaning Air Cooled Freezers 23 4 9 Preventative 3 1 lt 23 4 10 ee e E 23 4 11 Troubleshooting
29. RHHF 1 2X7 8 6 767226 WASHER FLT 1 2X1 3 8X9 16HV ZP 7 3177219 1 1 REDUCER SUPPORT BRACKET 8 2147034 2 e PULLEY 7 00 PD MACHINED 2 4177217 1 1 EVAP WELDMENT amp FOAMED 0 4177208 1 1 FRAME WELDMENT 11 2177229 1 1 WATER VALVE BRACKET e 763181 2 2 VALVE WATER 3 8NPT 3 369833 6 6 FITTING BARBED 1 2X3 8 BRASS 4 538351 16 16 U EX 95 16 18 CKING FLANGE 5 422156 2 GR ET KIT WITH SLEEVES 6 728190 001 001 IEF RD SEAL TAPE 520 ROI 7 644371 8 8 SCREW CAP 9 16 18 X 1 3 4 HX 8 767211 8 8 WASHER FLAT 5 16 8X3 8X14GA 2 1 282025 2 COMPRESSOR 208 230 60 1PH 20 282026 2 COMPRESSOR 208 230 60 3PH 21 649081 5 3 SCREW DRILL 8 TAP 8 18 X 1 2 ee 522869 2 DRIVE M R 3PH 23 522844 2 DRIVE M R 1PH SER 0 16058 23 522856 2 DRIVE M R 1PH SER 16059 PLUS 24 152294 4 4 BE V 392 HiL X 383 Pil 25 284104 2 2 WATER COOLED CONDENSER 26 538356 2 2 3 8 16 NUT HEX LOCKING FLANGE ZP 27 644522 2 2 SCREW CAP 3 8 16 X 3 4 HX HD 28 2177226 2 2 WATER CONDENSER BRACKE 29 644091 2 2 SCREW CAP 174 20 X 1 2 HX HD 30 644024 SCREW MACH 8 32 X 1 4 HX HD ZP 31 M820172 001 001 CTITE ADHESIVE 242 BLUE 3e 2838395 UT HEX 1 2 13X3 4X5 16 ZP 33 3538335 2 2 1 4 20 SPIN L N ZC 34 714003 001 001 3 8 X 100 RULL RUBBER 35 628007 5 3 RIVET 1 8 36 524091 9 3 U IE 37 647653 6 6 SCREW MACH 10 24 X 3 8 TRS HD 38 3177257 1 1 CAB EVAPORATOR ASSY 39 2177235 1 1 BRACKET DRIP TRAY CAB 40 M850004 ASRE
30. STOELTING sra A Polar Ware Company Model U431 Serial 17978 and up OWNER S MANUAL Manual No 513568 4 May 2004 Rev 0 Need Parts or Service Our Technicians are factory trained and are certified in the Stoelting Technicare program CALL A Distributor Phone No Model No Serial No Purchase Date Start Up Date STOELTINGe OWNER S MANUAL FOR MODEL 4431 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 withoutincurring any obligation to modify or provide new parts for freezers built priorto date of change DO NOT ATTEMPT to operate the freezer 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 freezer contact the company atthe location listed below STOELTING LLC Tele 920 894 2293 502 Hwy 67 Kiel WI 53042 1600 Fax 920 894 7029 TABLE OF CONTENTS AAPP nee 1 1 1 DESCUIDO RE a 1 1 2 PETN EN 2 Secilon RMB 3 2 1 Safety ele 3 2 2 Shipment 21 0 4 2 3 Freezer Installation nase ee 4 2 4 Installing Permanent Wiring eu AE GO GEE 4 2 5 MX PUMP
31. T INCORRECT INSTALLATION WILL VOID THE WARRANTY AND MAY CAUSE SE VERE DAMAGE TO THE MACHINE MAY CAUSE PERSONAL INJURY Installation of the freezer involves moving the freezer close to its permanent location removing all crating set ting in place assembling parts and cleaning A Uncrate the freezer B Install the four casters Turn the threaded end into the freezer until zero threads are showing To level turn out casters no more than 1 4 maximum then tighten all jam nuts C The freezer must be placed in a solid level position NOTE Accurate leveling is necessary for correct drainage of freezer barrel and to insure correct overrun D The freezer must have a minimum of 3 7 5cm 6 15cm high ambient conditions of space on all sides and 10 25cm at the top for proper circula tion CAUTION FAILURE TO PROVIDE ADEQUATE VENTILA TION WILL VOID WARRANTY E Water cooled freezers need an adequate water supply Install 1 2 12 7mm pipe or 1 2 12 7mm inside diameter copper water line to the freezer Connect water outlet to a drain using a 1 2 12 7mm inside diameter line Automatic washer hoses work well for final connections All water connections must comply with local codes Fig 4 A Fu FLUSH ALL WATER LINES BEFORE INSTALLA TION IN STORES WITH SEDIMENT IN WATER ADD SUITABLE FILTER OR STRAINER TO WATER INLET Figure 4 Water Electrical Connections F Place the CLEAN OFF SERVE switches i
32. TOR DOES NOT RUN Power to pump is off Supply power to pump Low voltage Check for low line 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 Remove jammed hose Re install cover clamp and tighten four thumb screws securely Allow motor thermal overload to reset See Sec 2 5 for hose replacement Do not use jammed portion of hose overload cause and repair NOTE 2 IMMEDIATELY AFTER A BAG CHANGE THE PUMP MAY BE UNABLE TO RE ESTABLISH IT S PRIME WITH 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 purge the mix bag of air to the extent possible Mix pump hose kinked inside black cover clamp Increase overrun setting Contact local Stoelting Distributor Mix pump hose service life 16 exceeded Reposition replace mix pump hose Out of Mix Replenish mix supply Overrun setting too high Decrease overrun setting Pick up leg of mix pump hose is collapsing See Section 2 5 NOTE ALSO SEE 2 ABOVE 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 tail
33. air dry 4 7 Check Hose Service Record decal to determine if Figure 26 Cleaning Feed Tube nn reposition or replacement is required at this Pump De Compressor 8 Reassemble both hose assemblies per the diagram located on the inside of the cab door Reconnect assemblies to the pump and discharge hose using the clamps See Figure 27 or refer to Section 2 5 Mix Pump 00 G DOMO gt 00 TI 00 Co SK d u Figure 24 Removable Parts l Figure 27 Mix Pump Tube Routing 20 SECTION 4 MAINTENANCE INSTRUCTIONS 4 1 FREEZER ADJUSTMENT This section is intended to provide maintenance person nel with a general understanding of the freezer adjust ments lt is recommended that any adjustments in this section be made by a qualified person 4 2 PRODUCT TEMPERATURE ADJUSTMENT A potentiometer is used to control the product tempera ture To change the temperature of the product follow the steps below A Loosen the two screws under the header display sign then pull sign out and down B Use a screw driver to make desired adjustment A label near the potentiometer will give complete in structions Figure 28 Figure 28 Potentiometer 4 3 OVERRUN ADJUSTMENT The product when served is a combination of air and mix Overrunis a measure of the amount of air blended into the mix Overrun can be expressed in terms of the amount of weight loss for a given volume For exam
34. alth regulations Mix sanitizer ac cording to manufacturer s instructions to provide a 100 parts per million strength solution Mix sanitizer in quan tities of no less than 2 gallons of 90 F to 110 F 90 to 110 F 32 C to 43 C water Allow sanitizer to contact the surfaces to be sanitized for 5 minutes Any sanitizer must be used only in accordance with the manufacturer s in structions Risk of Product Damage Avoid prolonged contact of sanitizer with freezer parts Prolonged contact of sanitizer with freezer may cause corrosion of stainless steel parts A Prepare 3 gallons of sanitizing solution following manufacturer s instructions and pour into storage container B Place the mix pump switch in the ON position and open air bleed valve on the front door by pushing valve in and holding see Figure 19 C Letsanitizing solution fill the freezer barrel to air bleed valve then close the valve by pulling out to lock in place D Place the CLEAN OFF SERVE toggle switch in the ON position while pressing the CLEAN switch Figure 20 Draining Sanitizer Check for leaks when the freezer barrel is first pressurized with sanitizing solution 1 Check for leaks at the plastic front door the O rings may not be sealed 2 Check the drain located at the center of the Drip Tray for leaks coming from the rear of the Rear Auger Seal 3 Check inside cab unit for leaks at hose connec tions Using a sanitized sof
35. anel from freezer C On air compressor side of pump locate the long slender piston rocking arm The rocking arm down ward travel is limited by 8 stationery cam On the face of the cam there is an overrun setting indicator plate numbered 3 thru 8 and an adjustment knob Figure 29 Figure 29 Overrun Adjustment D The overrun setting is indicated by a pointed pin E To adjust overrun loosen the allenhead screw located within the center of the adjustment knob with the 5 32 4mm 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 represents the overrun percentage ie 4 40 overrun F Tighten the allen screw then place the wrench back in its clip Replace the lower back panel and secure with the four screws Turn the mix pump power switch to the ON position 4 4 MIX PUMP HOSE REPOSITION every one or two weeks NOTE Mix pump hose must be repositioned every 1 2 weeks Failure to comply will result in reduced mix pump liquid capacity dispense stoppage popping and possible mix pump hose leakage 1 Run cleaning solution through pump 2 Turn pump off and relieve any pressure by opening the spigot 3 Grasp the pick up hose end of the mix pump hose with one hand and turn the pump on Pull down on the pick up hose end until 12 to 14 30 1 2 to 35 1 2cm of tubing has reverse
36. ch used to control the operation of the refrigeration system and auger When the switch is placed in the CLEAN position the refrigeration sys tem will be off and auger will rotate for cleaning When the switch is placed in the OFF position the refrigeration system and auger will not operate When the switch is placed in the SERVE position the refrigeration system and auger will operate auto matically The switch should be placed in the SERVE position for normal operation Cabinet Off On Switch The CABINET OFF ON switch is a two position toggle switch When the switch is placed in the OFF position the lower cabinet refrigeration system will not run When the switch is placed in the ON position the lower cabinet refrigeration system will run until the preset temperature is reached then cycle ON and OFF to maintain that temperature Cab Indicator Light A flashing light indicates the cab OFF ON switch is inthe OFF position no refrigeration Place the OFF ON switch in the ON position for cab refrigeration Pump Switch The pump motor switch is a two position toggle switch When the switch is placed in the OFF position the pump will not run When the switch is placed in the ON position the pump will run until the preset pressure is reached then cycle ON and OFF as product is drawn to maintain that pressure Standby Serve Switch The standby serve switch is a two position toggle switch When the switch is placed in the Standb
37. de Right Side Left Side Right Side Total Running Amps 17 6 17 2 11 6 11 2 20 8 17 2 14 8 11 2 pourcesreguired Minimum Circuit Ampacity 31 31 21 21 36 31 26 21 HACR Max Circuit Breaker 45 45 30 30 50 45 35 30 Maximum Fuse Size 45 45 30 30 50 45 35 30 COOLING Water or air cooled req s 3 7 5cm all around clearance and 10 25cm top clearance Water cooled req s 1 2 12 5mm NPT water and a fittings 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 A ENE A Re GEES Do not attempt to operate the freezer until the safety pre cautions and operating instructions in the manual are read completely and are thoroughly understood If you are in need of replacement labels indicate the part number type of label location of label and quantity re quired along with your name and address and mail to Take notice of all warning labels on the freezer Fig 3 The labels have been put there to help you maintain a safe working environment The labels have been designed to withstand washing and cleaning All labels must remain legible for the life of the freezer Labels should be checked PLACE ITEM 9 8 13 IN SIMILAR LOCATIONS ON OPPOSITE SIDE OF FREEZER PLACE ITEM 27 ON INSIDE OF FREEZER ON MOTOR SUPPORT BRACKET PLACE ITEM 12 gt ON INSIDE OF FREEZER ON REDUCER SUPPORT BRACKET BETWEEN BELTS PLAC
38. ear and tighten belts if necessary Refer to Section 4 7 2 Check the condenser for dirt Refer to Section 4 8 N WARNING NEVER ATTEMPT TO REPAIR OR PERFORM MAINTENANCE ON FREEZER UNTIL ALL MAIN ELECTRICAL POWER HAS BEEN DISCON NECTED 4 10 EXTENDED STORAGE Refer to the following steps for winterizing the freezer or for storing the freezer over any long period of shutdown time A Cleanthoroughly with warm detergent all parts that come in contact with mix Rinse in clear water and dry all parts Do not sanitize NOTE Do not let cleaning solution stand in freezer barrel or mix pump during the shutdown period D Remove disassemble and clean the front door auger shaft and mix pump Leave disassembled during the shutdown period C Place plastic auger flights in a plastic bag with a moist paper towel This will prevent flights from becoming brittle if exposed to dry air over an extended period of time over 30 days D Forwater cooledfreezers 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 Run the compressor for 2 3 minutes to open water valve Blow out all water first through water inlet then through water outlet lines with air or carbon dioxide Also drain water supply line to the freezer E Place the mix pum
39. eeded on a daily basis it will usually follow the cleaning procedure It requires letting a delimer solution soak in the machine for an extended period of time Individual parts are also soaked in a deliming solution for an extended period of time more about delimers in Additional Information 3 SANITIZING After the machine has been cleaned and contains no milkstone the machine is reassembled Then a FDA approved sanitizing solution is run through the machine to kill bacteria The machine is then ready for food preparation As a recommended cleaner and sanitizer for your frozen dessertmachine STERA SHEEN has proven to be one of the best daily maintenance products for CLEANING Thorough removal of all solids including butterfat and milk fat MILKSTONE REMOVAL Complete removal of milkstone SANITIZING FDA approved no rinse sanitizer for food contact surfaces Additional Information THE USE OF DELIMERS A delimer 16 a strong acid that has the ability to dissolve milkstone This type of chemical may become necessary once high levels of milkstone have developed While these products are very effective for removing HIGH levels of milkstone they are not ideal fortwo reasons 1 PRODUCT SAFETY Strong acids are dangerous chemicals and handling them requires safety 2 MACHINE DAMAGE Strong acids will attack metal and rubber causing premature wear of parts The use of a delimer needs to be closely monitored
40. emove the spigot through the bottom of the front door see Figure 13 Remove all O rings from spigots and air bleed valve Figure 15 Rear Seal Removal 3 5 CLEANING DISASSEMBLED PARTS Disassembled freezer parts require complete cleaning sanitizing 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 ageneral guideline only Consult your local and state health codes for procedures required in your location A To clean the freezer parts disassemble all parts Refer to section 3 4 for the disassembly of freezer Figure 13 Front Door Disassembly pants B Disassembly Of Auger B Place all front door and auger parts in clean 90 to 1 Remove the front auger support by pulling it 1107 32 C to 43 C water and wash thoroughly straight out of the freezer barrel four sink procedure only 2 Remove the plastic bearing from the front auger Place all parts in 90 to 110 F 32 C to 43 C mild EN detergentwater and wash thoroughly pport 3 Remove the auger by pulling slowly and rotating D Rinse all parts with clean 905 110 F 32 C to out of the freezer barrel As the auger is 43 C water withdrawn remove each plastic flight and spring from the auger Be careful not
41. er and install onto auger shaft DO NOT lubricate outside of rear auger seal see Figure 16 Socket _ Lubricant th Petrogel ear Seal Lubrciation Figure 16 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 see Figure 17 Figure 17 Spring Installation Install first flights to bottom of auger rotate add successive flights from bottom as the auger is pushed slowly into the freezer barrel Carefully engage auger with drive socket in speed reducer by rotating auger slowly and pushing on end of auger Apply athin film of sanitary lubricant to the inside and outside of the front auger support bearing then place on the front of the auger Assemble the front auger support onto the auger bearing NOTICE Position the front support on auger so legs do not interfere with the pin on the back of the front door assembly Front door must push auger in slightly when it is being tightened to prevent the rear seal from leaking G Assemble O rings onto the spigot dry without lubrication Then apply a thin film of sanitary lubricant to the outside of the O rings and spigot bodies H Install the spigots through the bottom of the front door see Figure 18 Figure 18 Front Door Assembly
42. f 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 obliga tions 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 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 ASIS 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 abu
43. hose to feed itself through the pump until the pick up hose adapter pre vents further feeding then turn the pump off 7 Reconnect mix pump hose to 1 using small clamp Pump is now ready to sanitize 4 6 CAB TEMPERATURE ADJUSTMENT Atemperature control isused to control cab temperature To change the temperature disconnect electrical power and then follow the steps below A Remove the six screws holding the left side panel and remove panel B Use asmall screwdriver to adjust the temperature control Turn counterclockwise for a warmer tem perature and clockwise for a colder temperature It will take about an hour for the cab temperature to change Figure 30 Figure 30 Temperature Control Cab C Install side panel and secure with the six retaining screws 4 7 DRIVEBELT TENSION ADJUSTMENT To check belt tension refer to Figure 29 and follow the steps below WARNING DISCONNECT ELECTRICAL SUPPLY TO FREEZER BEFORE SERVICING 22 A Remove either side and back panels B Press firmly on one belt Figure 31 C When the tension is properly adjusted the outside of the depressed belt should be approximately in line with the inside of the other belt D Ifanadjustment is necessary loosen the four motor plate retaining nuts adjust belt tension then re tighten the four nuts NOTE Belt life will be increased if new drive belts are tight ened after two or three weeks of operation 4 8 CONDENSER CLEANING AIR
44. ion 3 3 3 13 MIX PUMP CLEANING The mix pump is approved for CIP clean in place and is thoroughly cleaned as cleaning solutions are pumped thru the freezer We recommend completely disassembling the pump and connecting 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 1 Place CLEAN OFF SERVE switch in CLEAN posi tion Allow the auger to agitate for 5 to 10 minutes 2 Remove suction tube from mix container Draw off the mix remaining in freezer barrel 3 Pump 2 gallons 7 5 liters of cold potable water thru freezer until water at spigot is free of mix 4 Pump 2 gallons 7 5 liters of 90 to 110 F 32 C to 43 C detergent solution water thru freezer The use of soft water is recommended along with dishwashing detergents such as Joy Dawn or equivalent 5 Place mix pump switch in OFF position Open spigot to relieve remaining pressure 6 Place CLEAN OFF SERVE switch in OFF position 3 14 DISASSEMBLY AND INSPECTION OF REMOVABLE PARTS Inspection of removable parts should be made whenever maintenance is performed or pump requires disassembly Hazardous Moving Parts Revolving pump head can grab mangle and cause serious crushing injury The Power switch must be placed in the OFF position for cleaning and power must be disconnected when disassembling or servicing System Under Press
45. low Low overrun System low on refrigerant Temperature control set too warm Temperature control set too cold Check power to freezer Wait 15 20 min for Thermo overload to reset Check must be 10 of nameplate voltage Raise overrun and or product temperature See Section 4 3 or 4 2 Install front door securely Check power to freezer Wait 15 20 min for Thermo overload to reset Check must be 10 of nameplate voltage Check condenser air cooled See Sect 4 8 or water suppy water cooled Install front door securely Adjust temperature See Section 4 2 Fill with fresh product Place Standby Serve Switch in Serve position Adjust temperature See Section 4 2 Raise overrun See Section 4 3 Check pump pressure Purge air from barrel Change rotation to clockwise Lubricate seal See Section 3 8 Check See Section 3 8 Replace shaft Lubricate See Section 3 8 Replace O rings Remove spigot and check O rings Replace front door Adjust belt tension See Section 4 7 Replace belts Adjust temperature See Section 4 2 Check for air leak Add refrigerant Refrig Service Remove left side panel and locate temperature control and follow instructions on decal Remove left side panel and locate temperature control and follow instructions on decal MIX PUMP 1 PUMP MO
46. ms may sound synonymous they are not BOTH are required for adequate food safety and proper machine maintenance CLEANING Is the removal of soil materials from a surface Is a prerequisite for effective sanitizing NOTE An UNCLEAN surface will harbor bacteria that can defy sanitizing efforts Bacteria can develop and resist sanitizing efforts within a layer of soil material milkstone Thorough cleaning procedures that involve milkstone removal are critical for operators of frozen dessert machines SANITIZING Kills bacteria Can be effective on clean surfaces only DOES NOT clean or remove milkstone NOTE Using a SANTITIZER on an unclean surface will not guarantee a clean and safe frozen dessert machine Proper Daily Maintenance The Only Way to Assure Food Safety and Product Quality Proper daily maintenance can involve a wide variety of products and procedures Overall the products and procedures fall into three separate categories Please note that this is a brief overview intended for informational purposes only 1 CLEANING This involves draining mix from the freezer barrel and rinsing the machine with water Next a cleaner is run through the machine Then the machine is disassembled and removable parts are taken to the sink for cleaning 2 MILKSTONE REMOVAL Since almost all cleaners do not have the ability to remove milkstone the use of a delimer becomes necessary Although this procedure may not be n
47. n the OFF position before continuing Figure 11 2 4 INSTALLING PERMANENT WIRING Permanent wiring is required by local codes the follow ing procedure must be performed A Refer to the nameplate at the rear of the freezer for specific electrical requirements Make surethe power source in the building matches the freezer name plate requirements Bring the wires into the junction boxes through the access holes in the bottom rear of the freezer Figure 4 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 lower back panel and the two junction box covers located at the bottom of the freezer C Install permanent wiring according to local code D Check the auger shaft rotation by placing the MAIN DRIVE switch in the CLEAN position Auger shaft rotation is clockwise as viewed through the clear plastic front door If the rotation is not clockwise turn main electrical power OFF Then reverse L1 and L3 electrical power lines to the junction box three phase only Re check auger shaft rotation Figure 5 Figure 5 Auger Rotation 2 5 MIX PUMP A 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
48. omprehensive food safety program Soil Materials Associated with Frozen Dessert Machines MILKFAT BUTTERFAT As components ofice cream frozen custard mix these soils will accumulate on the interior surfaces of the machine and its parts Fats are difficult to remove and help attribute to milkstone build up MILKSTONE Is a white gray film that forms on equipment and utensils that come in contact with dairy products These films will accumulate slowly on surfaces because of ineffective cleaning use of hard water or both Milkstone is usually a porous deposit which will harbor microbial contaminants and eventually defy sanitizing efforts Once milkstone has formed it is very difficult to remove Without using the correct product and procedure it is nearly impossible to remove a thick layer of milkstone NOTE general purpose cleaners DO NOT remove milkstone This can lead to high bacteria counts and a food safety dilemma IT IS BEST TO CONTROL MILKSTONE ON A DAILY BASIS BEFORE IT CANBECOME A SIGNIFICANT FOOD SAFETY PROBLEM In addition to food safety milkstone can cause premature wear to machine parts which can add to costs for replacement parts or possibly more expensive repairs if worn machine parts are not replaced once they have become excessively worn Important Differences Between Cleaning and Sanitizing CLEANING vs SANITIZING It is important to distinguish between cleaning and sanitizing Although these ter
49. p ON OFF switch and the CLEAN OFF SERVE switch in the OFF position F Disconnect from the source of electrical supply in the building 4 11 TROUBLESHOOTING The Troubleshooting Table lists the common problems that can occur to the freezer 24 Drive motor auger kicks out or does not run Compressor does not operate Product too soft Freeze up Product will not dispense easily Rear auger seal leaks Spigot leaks Drive belts slipping or squealing Mix temperature too warm in cab Mix temperature too cold in cab Power to freezer is off Drive motor overloaded Low line voltage Product too hard Front door not installed securely Power to freezer if off Drive motor overloaded Low line voltage Compressor internal overload is cut out Front door not installed securely Temperature setting is too high Product break down Standby Serve Switch in Standby position Temperature setting is too low Low overrun setting Low pump pressure Large air pocket in barrel Auger turning counter clockwise Rear auger seal not lubricated Seal missing or installed wrong Worn or scratched shaft Spigot parts are not lubricated Chipped or worn o rings O rings on spigot installed wrong Nicks or scratched on front door where spigot is located Drive belt tension not correct Worn 015 Temperature setting is too
50. ple if a pint of liquid mix weighs 18 ounces 510 grams and a pint of frozen product with air added weighs 12 ounces 340 grams the overrun is said to be 50 percent 18 02 510 grams 12 02 340 grams 6 oz 170 grams 6 12 100 50 The overrun can be checked by placing a one pint container on an ice cream scale and zeroing outthe scale Then fill 8 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 473 milliliters of product should weigh 12 to 13 ounces 340 to 368 5 grams 21 The mix pump has been preset at the factory to produce a product with approximately 40 overrun Because of differences in mix formulation temperatures and baro metric pressure this figure may vary It will be necessary for approximately 2 gallons 7 5 liters of mix to be pumped thru the freezer before changes in the product are noticeable due to adjustments in overrun 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 Con versely shortening the stroke will decrease overrun To perform an overrun adjustment refer to the following procedure A Turn the mix pump switch to the OFF position Disconnect both power sources circuit breakers B Remove the lower back p
51. s Gently and slowly assist feeding of hose up into pick up hose side of cover Turn on motor switch Also see ltem 1 above Contact local Stoelting Distributor Reposition replace mix pump hose Reposition replace mix pump hose Recent mix out condition Open spigot fully and allow excess air to belch out CAUTION To prevent mix pump damage from dried mix deposits immediately disassemble and clean pump Mix pump hose service life 16 exceeded Remove mix pump hose Disconnect pump from power source Remove mix pump cover clamp THOROUGHLY rinse three squeeze rollers using a spray bottle filled with hot water Thoroughly clean all mix from pump See Sec 2 5 for hose replacement Pump is limited to 10 lift 20 run SOUND DURING OPERATION THIS IS NORMAL Mix hose on wrong air mix tee fitting Refer to diagram for correct hose connections 27 28 SECTION 5 HOW TO ORDER REPLACEMENT PARTS 5 1 HOW TO ORDER REPLACEMENT PARTS C Partnumber 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 A Modelnumber of equipment ae ordering parts or servicing B Serialnumber of model stamped on nameplate Item Stoelting P N Qty Description 1 1 2177427 Door Side ID Grooves 2 1158091 1 Actuator Door
52. se use with parts or equipment not manufactured or supplied by Stoelting or damage in transit THE REMEDIES SET FORTH INTHIS WARRANTY SHALLBE THE SOLE LIABILITY STOELTING AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO EQUIPMENT SUPPLIED BY STOELTING AND IN NO EVENT SHALLSTOELTING BE LIABLE FORANY INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER FOR BREACH OF WARRANTY OR OTHER CON TRACTBREACH NEGLIGENCE OR OTHER TORT OR ONANY STRICT LIABILITY THEORY
53. t bristle brush or equivalent dipped in sanitizing solution clean mix container After five minutes open spigot to expel sanitizing solution Drain all solution from freezer using all three spigots See Figure 20 Close the spigot and place the mix pump switch and the CLEAN OFF SERVE switch in the OFF position The freezer is now sanitized and ready for adding mix 3 10 INITIAL FREEZE DOWN AND OPERATION This section covers the recommended operating proce dures to be followed for the safe operation of the freezer A Sanitize just prior to use according to instructions outlined in this manual Prepare the desired amount of mix and then fill each storage container with approximately 3 gallons or more of mix Place a container s of mix in the re frigerated cabinet If drawing from a storage container place the draw tube through the cover to the bottom of the container If drawing from a bag in a box re move the cap push out all of the air and insert the adaptor Mix Low Sensor Figure 21 Refrigerated Cabinet Place the mix pump switch in the ON position The mix pump switch is located in the upper left hand corner inside the refrigerated cabinet Immediately open the spigot and let approximately 8 ounces of liquid mix with sanitizing solution drain out of the spigot Close the spigot and open the air bleed valve on the front door by pushing the valve in and holding Allow the barrel to fill until the mix level
54. to scratch inside of F Sanitize all freezer parts following procedures out freezer barrel when removing flights or auger lined below Remove the spring from each auger flight 3 6 SANITIZE FREEZER PARTS c A Useasanitizer 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 Allow the sanitizer to contact the surfaces to be sanitized for 5 minutes Any sanitizer must be used only in accordance with the manufacturer s instructions B Place allparts in the sanitizing solution for 5 minutes then remove and let airdry completely before assem bling in freezer A IN INIA 1806 i a 0400 A Figure 14 Auger Flight Removal 4 Keep the rear of the auger tipped up once it is clear of the freezer barrel 5 Wipe spline lubricant off hex end of auger with a paper towel Remove the rear seal Figure 15 13 3 7 CLEANING THE FREEZER CAUTION Risk of Product Damage Do not use acid cleaners strong caustic compounds or abrasive materials to clean any part of the freezer exterior or plastic parts The exterior should be kept clean at all times to preserve the lustre of the stainless steel A good grade of stainless steel has been used on the freezer to ease clean up To remove spilled or dried mix simply wash the exterior in 90 to 110 F 82 C to 43 C soapy water and wipe
55. ttach to water hose near bottom Caution Elec Wiring Mat ls must conform between water couplings one rear panel bottom Caution Haz Mov Parts on inside of mtr support brkt rear Caution Haz Mov Parts on cond bkt rear amp 2 on evap enclosure sides Attn Ref Lk Chk on evap enclosure sides Tag Supply volt inside J Box Card Inside one J Box ID Tags Back Panel Top Add Vent Back Panel Ctr Top Made in U S A Back panel Caution Rot Shaft on gearbox support bracket Field Connections J Box cover outside Danger Elec Shock J Box covers outside back panel bottom Warm Cold T Stat Night Serve Temp Control Bracket Use copper cond only inside both J boxes Wired According to on elec schematic envelope Elec Schematic Envelope Water Inlet Back panel above inlet coupling Header Panel Decal Stoelting Logo Header Panel Decal Stoelting Swirl Header Panel Decal A 8 W Logo 33 a us EN
56. ure Never disconnect hoses from freezer or pump without first opening spigot to relieve pressure NOTE If the mix lines or air line is difficult to remove soften with a rag soaked in hot water Hose connections may be sprayed with Haynes Sanitary Lubricant for ease of removal Do not loosen or remove the mix pump cover wingnuts Maintain the mix pump hose in its operational condition 9 Sanitize assembled freezer as per instructions outlined in Section 3 9 1 Loosen clamp and remove air hose from pump compressor 2 Loosen clamp and disconnect mix pump hose Remove the pickup hose mix check valve and pickup hose adapter and bag adapter if applicable as an assembly from mix container 3 Completely disassemble both hose assemblies and check valve Place hoses tee check valve assem bly 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 90710 110 F 32 C to 43 C water see Figure 24 Figure 25 Cleaning Air Tube 4 Carefully inspect each part for wear or damage Replace worn or damagedparts 5 Wash feed tube and air tube with 90 to 110 F deter gent water and brushes provided Rinse with clean 90 to 110 F water See Figure 25 and 26 6 Prepare two gallons 7 5 liters of sanitizing solution using a USDA certified grade sanitizing solution Sanitize all removed parts then
57. y position the freezer will cycle to maintain a temperature below 41 F When the switch is in the Serve position the freezer will cycle to maintain a servable product Freezing Switch The freezing switch is a two position toggle switch When the switch is placed in the ON position the freezer will be forced to run 30 seconds after the temperature control is satisfied Dispense Rate Adjusters The dispense rate adjuster limits the opening ofthe spigot To adjust product dispense rate turn the adjustingknob clockwise for slower flow and counter clockwise for faster flow High Head Pressure Cut Out Ifthe head pressure exceeds 445 PSIG 28 bar air cooled and water cooled the high head pressure cutout will trip The reset button can be accessed from the side of the freezer Low Mix Light The low mix light will illuminate when the liquid level in the mix container drops below two gallons Front Door Safety Switch The front door safety switch prevents the auger from turning when the front door is removed The switch is open when the door is removed and closed when the door is properly installed 3 3IMPORTANTINFORMATION REGARDING CLEANING AND SANITIZING Soft serve and shake freezers require special consideration when it comes to food safety and proper cleaning and sanitizing The following information specifically covers issues for cleaning and sanitizing frozen dessert freezers This information is meant to supplementa c
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