Grindmaster 5311 Beverage Dispenser User Manual
Contents
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4. Beverage Freezers Operation and Instruction Manual for Models 5311 amp 5511 TABLE OF CONTENTS Warnings and Safety Precautions Installation Operating and Adjustments Care and Cleaning Maintenance Service Troubleshooting Exploded Views Electrical Diagrams Wiring Diagrams Refrigeration Diagram Prior authorization must be obtained from Grindmaster Corporation for all warranty claims Grindmaster Corporation 4003 Collins Lane Louisville 40245 USA GRINDMASTER 502 425 4776 800 695 4500 FAX 502 425 4664 www grindmaster com Grindmaster Corporation 2000 0501 WH 330 07 PRINTED IN USA Part W06001 16 WARNING LABELS OPERATOR S SAFETY PRECAUTIONS 1 Read and understand the operating instructions in this manual thoroughly 2 Note all warning labels on the freezer If any of the warning labels are missing or damaged replace them immediately 3 Do not wear loose fitting garments or jewelry which could cause a serious accident 4 Stay alert at all times during operation 5 Keep operating area clean 6 Do not operate freezer if any excessive noise or vibration occurs Contact your authorized service agent RISK OF ELECTRIC SHOCK DIS CONNECT POWER BEFORE SER VICING UNIT HAZARDOUS MOVING PARTS DO NOT OPERATE UNIT WITH PANELS REMOVED Located on the right left and rear panels INSTALLATION Shipment Transit 1 The freezer has been
5. 50 KGRND 40 81 26 WND Crathco 5311 amp 5511 Manual Page 33 5511 Front Electrical 70 5 gt 4 gt cL 40 5 1 Ur ACFM 1 55 5 60682 4 06 46 CR TO POWER CORD BLACKCTH facis Ge SCB 35 DM gt 40 R1 gt 52 5 1 68 TD CB CB px ene AE PANELS STANDBY iac dba MIXLU V RARE 6RD 6448 5511 0101 057 3 20 00 Crathco 5311 amp 5511 Manual Page 34 5311 Electrical PartNumber Description Item Part Number Description W0570603 Start Capacitor 12 W0570043 Light Bulb W0570617 Run Capacitor W0570044 Light Socket W0570655 Contactor W0630006 Bushings W0570916 Reed Switch W0630811 Capacitor Clips 5311 0214 057 11 16 00 W0570638 Compressor Relay W0631629 Electrical Box Lens W0570934 On Off Switch W1570616 Fuse Block 0572451 Electrical Box W0570823 3 2 Amp Fuse W1570901 Mode Switch 9 W0570842 5 0 Amp Fuse W0570423 Terminal Strip W0630427 Edgemount Standoff Circuit Board Support W0572704 Serve Switch Bracket W0650913 Circuit Board W0572705 Light Riser 5511 Electrical Box Part Number Description 12 W0570043 Light Bulb W0570044 Light Socket 5511 0111 057 11 16
6. 1 CAUTION Do alter or deform the plug way Altering or deforming plug may damage unit and will void warranty Receptacle required NEMA 5 20R for model 5311 and NEMA 6 20R for model 5511 Place freezer in a location that allows adequate space at each side and above for proper air circulation Minimum clearance is 6 15 cm on both sides 0 at back and open above the freezer See Figure B CAUTION Failure to allow adequate ventilation will void the warranty and reduce freezer performance Place the freezer on the self sealing rubber pad on a level counter that is stable and strong enough to safely support its weight 200lbs 90 7kg or if equipped with legs instead of pad install legs by screwing them into the four leg holes on the bottom of the unit Leg Kit Part W089 0220 4 4 Legs 0 CLEARANCE AT REAR MACHINE Place On Off Clean switch in OFF position Install header by removing two screws from the electrical box ocover Carefully remove electrical box cover Place the header transparency between the clear and opaque plates plastic lens Slip the electrical box cover back on to machine and reinsert the four screws See Figure C Install the standard one piece carb tube by placing it in the hole in the hopper If your unit is equipped with a two piece smoothie shake carb tube place the solid piece in the hole in the hopper with the hole facing front to back Then place th
7. BALLAST W0570043 FLOURESCENT BULB W0570044 LIGHT SOCKET W1570010 N BLOCK YELLOW INDICATOR LIGHT W1570011 RED INDICATOR LIGHT W1570012 Crathco 5311 8 5511 Manual Page 31 GREEN INDICATOR LIGHT 5511 Electrical Components 52 3 MIX LOW SENSOR HP 68 RD CS DM onu M 24 RD 23 RD Bo 222002 1 GREEN 63D BLUE 64 4 STANDBY WHITE CB BLACK 37 R RED 1 COMPRESSOR 5 m gt PART NUMBER DESCRIPTION 2000 5311 amp 5511 Manual 32 5311 Front Electrical Box Se CB 45 CR v 23 FM 58 CFM 32 WN 55 CB 8 8 8 88 Im 8 gs a 1085 38 CR COMPRESSOR 39 CS COMPRESSOR gt 7 35 DM 25 CHOPPER LOW SENSOR 53 SERVE SWITCH 43 Sw20 1 L 93 RD CB 41 GGW2 1 42 GREEN 65 GLTD BLUE 65 GLTD WHITE 66 YLTD BLACK 66 YLTD 5 37 COMPRESSOR RED 67 RL amp sO S E 45 RED TD ORANGE 67 RLTD 2 LT 62 63 09 57 R2 27 WND y
8. Sound Insulation Optional Thick Product plunger Crathco 5311 amp 5511 Manual Page 23 Exploded View Model 5511 Item Part Number Description W0110002 Valve Stud 0210171 Frame Assembly W0520063 Stainless Steel Rear Panel W0520064 Stainless Steel Side Panel Left W0520065 Stainless Steel Side Panel Right W0340058 Barrel Gasket W0340210 Shaft Seal Set W0380025 Flange Bearing W0430024 Blind Flange Bearing W0430028 Stator Weldment W0430032 Stator Flange Bearing W0430089 Scraper Dasher W0450053 Pulley 10 inch W0450209 W0451067 Slush Drive Shaft W0520094 Hopper Cover Black W0472062 Drip Pan Bkt For X LG W0472063 Drip Pan Insert W0631632 Plastic Drip Pan Black W0480445 Valve Handle W0480450 Valve Body W0572452 Electrical Box Cover W0572454 Electrical Box Assembly W0630711 Valve Knobs W0650913 Circuit Board W0212000 Base Assembly Shake Machine W1431084 Scraper Blade W0201335 Evaporator Assembly W0570617 Run Capacitor 0570619 Start Capacitor 5511 0109 015 3 20 00 Crathco 5311 amp 5511 Manual Page 24 Exploded View Model 5311 Base Assembly Item Part Number Description W0210169 Motor Cradle 0 200123 Compressor W0450016 Pull W0610110 8 X 3 8 Pan Hd W0200256 Condenser W0610264
9. Mixes with too low a brix level will have larger ice crystals and will have a tendency to dispense slowly Note Always take BRIX measurements using mix that has been thoroughly blended before it is frozen Always allow frozen mix to thaw thoroughly before taking a reading Alcohol content also affects product freezing characteristics and may prevent the freezer from serving a product at proper thickness For maximum output capacity always pre chill mix before adding it to the freezer Pre chilled mix gives the freezer a head start on the freezing process and will speed both initial freeze down and recovery time Crathco 5311 amp 5511 Manual Page 5 Carburetor Assembly Your new freezer uses a metering device known as a carburetor to feed the proper ratio of mix and air into the freezing cylinder For products such as dairy based shake mixes the proper mix to air ratio is generally accepted to be two parts mix to one part air This proportion yields a finished product that is both tasty and profitable At this ratio one gallon of liquid mix will yield a volume of one and one half gallons of frozen product The carburetor is a tube with a hole or series of holes bored through the side It is located in the hopper and fits in a hole that leads to the freezing cylinder Air flows into the freezing cylinder through the top of the tube and mix flows in through a smaller hole in the side of carburetor tube The size of the mix inlet is balanc
10. am 6 pm EST or an authorized service center in your area Please have the model and serial numbers ready so that accurate information may be given Prior authorization must be obtained from Grindmaster Corporation s Technical Services Department for all warranty claims Crathco 5311 amp 5511 Manual Page 22 Exploded View Model 5311 Optional Dasher Part 0430026 Item Part Number Description WO0210171 Frame Assembly W0520063 Stainless Steel Rear Panel W0520064 Stainless Steel Side Panel Left W0520065 Stainless Steel Side panel Right 0340022 213 0340058 Barrel Gasket W0340210 Seal Set Standard W0389001 Modified Flange Bearing W0430024 Blind Flange Bearing W0430028 Stator Rod Weldment W0430032 Stator Flange Bearing WO0430089 Scraper Dasher W0450008 Pulley 10 inch 0450209 Drive V Belt 0451067 Drive Shaft Optional X large drip pan 0520094 Hopper Cover Black 0480445 Valve Handle for units with spinners W0480450 Valve Body W0572286 Electrical Box Cover 0572340 Electrical Box Assembly W0630711 Valve Knob W0650913 Circuit Board WO0212081 Base Assembly W1431084 Scraper Blade W0472064 Drip Pan Bracket 0472063 Drip Pan Insert 0472062 Drip Pan Form W0631631 Plastic Drip Pan white W0631632 Plastic Drip Pan black W0670007
11. draw periods The Stand by mode keeps the mix in the hopper at a safe storage temperature and allows the product in the freezing cylinder to return to a refrigerated liquid state Switching back to ON quickly returns the product in the freezing cylinder to proper serving consistency At the start of the STAND BY period 1 Select the STAND BY mode by moving the mode switch to the middle position The front panel STAND BY light will illuminate At the end of the STAND BY period 1 Turn the switch to the FREEZE position by moving the mode switch The FREEZE light will illuminate 2 When the freezer cycles off by reaching the desired temperatures you are ready to start serving IMPORTANT The STAND BY SWITCH should not be used in lieu of cleaning and sanitizing procedures specified by local regulatory agencies Mix Low Function This model will sense when the mix is low in the hopper The mix low light will illuminate continuously for 2 min utes After 2 minutes the light will begin to blink off and on for the next 8 minutes The buzzer in the mix out circuit is 2 minutes off and 5 seconds or 5 beeps on for a total of 10 minutes At the end of the 10 minute time the Crathco 5311 amp 5511 Manual Page 7 Mix Low Function buzzer is out of the circuit and the light will illuminate fully again After the 10 minute cycle the mix out safety func tion is activated making the unit inoperable The machine is pl
12. energized COIL D11 Freezing cylinder refrigeration solenoid coil energized COLDER COLBER COLDER acum wm jh Og BISPENSE Figure Electronic Control Board Crathco 5311 amp 5511 Manual Page 10 CARE AND CLEANING Note Each time the freezer is disassembled all internal freezer components must be thoroughly washed scoured and sanitized using procedures recommended by your local health department In lieu of local health department recommendations use a three compartment sink one compartment to wash parts in detergent one compartment to rinse and one to sanitize Drain and Rinse 1 If the freezer is empty proceed to Cleaning Following Complete Disassembly of Unit or Daily Cleaning Procedure If the freezer is full of product turn the mode switch to CLEAN 2 On freezers using the optional electric pump and tank assembly and optional Remote Fill Control turn the switch on the Remote Fill Control to OFF and unplug the pump 3 On freezers using the optional Remote Fill Control and Proportioning Pump turn off the water valve on the Proportioning pump using the valve next to the inlet pressure regulator 4 Open the front dispensing valve and drain all product from the freezer Close the dispensing valve and turn freezer to OFF Note Use approximately 2 1 2 gallons 10 liters of cool water to rinse product out of the freezer Remove the carburetor tube and pour water in
13. one hour change will make a noticeable difference in product consistency Crathco 5311 amp 5511 Manual Page 8 Product Consistency Adjustment 4 When making adjustments to a thicker colder setting dispense approximately 16 ounces 1 2 liter of product and recheck consistency after the compressor has cycled off 5 If the consistency is still not correct repeat steps 2 and 3 Standby Freezing Cylinder Temperature Adjustment 1 Remove the front electrical box cover See Figure C 2 For a colder setting turn the Barrel control adjuster located at the top left of the circuit board counter clockwise See Figure I page 10 CAUTION This control setting is very sensitive so always make small adjustments If you visualize this control as a clock face a one hour change will make noticeable difference in freezing cylinder product temperature A recommended setting is 11 00 Hopper Temperature Adjustment 1 Remove the front electrical box cover 2 For a colder setting turn the Hopper control adjuster located at the top left of the circuit board counter clockwise See Figure page 10 CAUTION This control setting is very sensitive so always make small adjustments If you visualize this control as a clock face a one hour change will make a noticeable difference in hopper product temperature A recommended setting is 10 00 Note Some models will have a built in feature in the freeze mode tha
14. operated and tested at the factory Upon arrival the complete freezer must be thoroughly checked for any damage which may have occurred in transit Note A tip N Tell warning device is placed on each shipping carton at the factory If the arrow tip is blue the carton has been tipped in transit See Figure A 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 damage Have the carrier note any visible damage on the freight bill If concealed damage and or shortages are found later advise the carrier within 10 days and request inspection The customer must place any claim for damage and or shortage with the carrier Grindmaster cannot make any claims against the carrier Crathco 5311 amp 5511 Manual Figure A Page 2 Removal from Carton and Pallet Remove staples or cut cardboard box around the stapled area Pull the cardboard box up off machine Remove the Styrofoam packing and the plastic bag Remove both side panels with screwdriver Use a wratchet with a 3 inch extension and a 7 16 socket to remove the shipping bolts connecting the machine to the pallet located on both sides of the frame bottom plate Supporting all four sides lift machine up and place in appropriate area CAUTION f equipped with spinner do not lift unit by spinner shaft to avoid serious damage to spinner Installing Your Unit
15. provided See Figure H n pinner mounting Dracret 7 Insert the screws through the front of the spinner bracket then through Spinner the spinner rear mounting bracket making sure that the bracket flange is toward the left facing toward the front of the freezer Mounting screws Figure H 8 See the spinner wiring diagrams on pages 35 and 36 to locate spinner wire connections OPERATING amp ADJUSTMENTS How to Operate 1 Sanitize unit following the cleaning instructions on page 11 Fill hopper with product Allow barrel to fill with product to the proper level then install carb tube Turn power switch toggle switch located underneath the electrical box to on position a A Allow product to freeze in barrel Turn mode switch rocker switch located next to power switch to freeze position To dispense product pull down valve handle and release when done 7 If product consistency is not as desired adjust per the instructions on page 8 Mix Considerations General Freezing characteristics are affected by the amount of sweeteners and solids in the mix called BRIX BRIX can be measured with an instrument called a refractometer A BRIX reading of between 11 and 14 will provide optimum freezer operation Mixes with this brix level will freeze down to a smooth uniform consistency Mixes with too high a brix level will take longer to freeze down and will yield a soft wet frozen product
16. 00 W0630006 Bushings W1571078 Relay Bracket W0631633 Electrical Box Lens W1570616 Fuse Block W0570823 3 2 Amp Fuse W0570842 5 0 Amp Fuse W0630427 Edgemount Standoff W0572342 Circuit Board Support W0572704 Serve Switch Bracket W0650913 Circuit Board 22 83106 Relay Crathcoe 5311 Manual 35 Number Description 1 W0570659 Transformer W0572705 Light Riser W0570655 Contactor W0570916 Reed Switch W0570618 Compressor Relay W0570912 On Off Switch W0572464 Electrical Box W1570901 Mode Switch W1570213 Terminal Stri KO CO N N A 5311 Spinner Hook Up Wiring Diagram eese ee al RIR Blas 5 54 diii 8 BLUE SPINNER WIRE GREEN SPINNER WIRE Ta T LS p BROWN SPINNER WIRE Page36 Crathco 5311 amp 5511 Manual 5511 Spinner Hook Up Wiring Diagram 63 89 POWER CORD GROUND 91 a BROWN SPINNER WIRE GREEN SPINNER WIRE BLUE SPINNER wire NI 5511 SPINNER WIRE CONNECTION DIAGRAM 5511 0100 057 9 14 00 5511 0100 057 9 14 00 Crathco 5311 amp 5511 Manual Page 37 5311 Compressor Wiring Diagram TO COMPRESSOR 5511 Compressor
17. 10 24 X 1 4 Truss Hd W0200411 Fan Mount Bracket W0321025 Motor Stop Bracket W0200412 Compressor Spacer W0611055 10 24 Hex Nut W0200413 Compressor Grommet W0611074 1 4 20 Hex Nut W0201079 Fan Shroud W0210041 Frame Bottom Plate W0320019 Drive Motor W0320209 Fan Motor W0320286 Fan Blade W0611082 5 16 18 Flange Nut W061 1235 3 16 Flat Washer W061 1246 1 4 Lockwasher W0610657 5 16 18 X 1 2 Cap W061 1255 5 16 Split Washer W0321013 Motor Adj Nut W0380009 Flange Bearing W1611005 1 4 20 NC ESNA W0340111 Isolation Bumper Crathco 5311 amp 5511 Manual Page 25 Exploded View Model 5511 Base Assembly Item Part Number Description W0210169 Motor Cradle W0200133 Compressor W0200256 Condenser 0200411 W0200412 W0200413 Compressor Grommet W0201079 Fan Shroud 0210041 Frame Bottom Plate W0320020 Drive Motor W0320220 Fan Motor W0320286 Fan Blade W0321013 Motor Adj Nut W0671017 Sound Insulation Fan W0380009 Flange Bearing W0450016 Pulley W0321025 Motor Stop Bracket W0611074 1 4 20 Hex Nut 0611082 5 16 18 Flange Nut W0611246 1 4 Lock Washer W0610657 5 16 18 x 1 2 W0671018 Sound Insulation Cond W0671021 Sound Insulation Shro W0671022 Sound Insulation Motor W0340
18. 111 Isolation Bumper W0630421 Nylon Cable Clamp 0610559 Screw 1 4 20 1 socket W0611248 Lock Washer 1 4 Split z p CO 00 2 Co 5511 0107 021 5 15 00 5311 amp 5511 Manual Page 26 5311 Base Assembly Refrigeration FRONT OF MACHINE RIGHT SIDE VIEW OF REFRIGERATION RONT OF MACHINE LEFT SIDE VIEW OF REFRIGERATION Item Part Number Description 650501 Access Valve W0200314 Capillary Tube 042 x 12 Ft 650112 Filter Drier W0200123 Compressor 0200256 Condenser W0650104 Automatic Expansion Valve W0201120 Hopper Coolant Lines W0201331 Suction Line W0620109 3 8 x 3 8 x 1 4 Tee 0201114 Evaporator Line W0201113 Suction Line W0201323 Exp Valve Solenoid Coolant Line W0620102 1 4 x 1 4 x 1 4 Tee W0620110 1 4 Copper Elbow W0201324 Filter Condenser Coolant Line 0201325 Coolant Line 0201326 Solenoid Cap Tube Line W1650002 Solenoid Valves 0620103 3 8 Straight Couple W0201039 Compressor Condenser Hot Gas Line 5311 105 021 4 29 00 Crathco 5311 amp 5511 Manual Page 27 10 11 12 13 14 5511 Base Assembly Refrigeration 2222217 Part Number D
19. 35 Switch Serve W0572704 Bracket Serve Switch CO 00 0 14 1 091 4 5311 0212 057 02 06 01 Crathco 5311 amp 5511 Manual Page 41 5511 Wiring Diagram HIGH PRESSURE 9 CUTOUT SWITCH a FAN MOTOR ACE Lr i TO COMPRESSOR DRIVE MOTOR POWER CORD GON 9555 555 9595 999 999 995 i 25 59 44 if D 9 BLUE YELLOW STANDBY RED MIXLOW ORANGE UEM 9 TO MIX LOW SENSOR Part Number Description W0570655 Contactor 0570213 8 Pin Terminal Strip W0570618 Compressor Relay W0650102 Solenoid Complete W0570823 3 2 Amp Fuse W1570616 Fuse Holder W0570659 Transformer W0570912 On Off Switch Toggle W1570901 Mode Switch W1572132 6 Wire Cable Sub As W0570842 Fuse 5 Amp W0570916 Switch Serve W0572704 Bracket Serve Switch W0570043 Bulb Light Socket W0570047 Ballast 0572500 Right Side Harness W0572501 Right Elec Box Harness W0572504 Electrical Box Wire Bundle 83106 Relay Pressure Switch Crathco 5311 amp 5511 Manual Page 42 Refrigeration Circuit JAWA TION3 TOS 12917 1 NUISNVdX3 IN aaa SITNA 011205 2 0
20. ELAY OPERATION 5 Py EL LOW sraon ls 4 a 7 5511 0103 057 3 20 00 Crathco 5311 amp 5511 Manual Page 40 5311 Wiring Diagram BARREL SOLENOID VIOLE TOLET WHF HOPPER SOLENOID YELLOV e 5 TO FAN MOTOR 3 Q CONNECTION TO POWER 5 8 CORD OUTSIDE 2 ole Cales 8 COMPRESSOR EOSDEM E 32 Ge 25 e TD DRIVE MOTOR T of 56 4 NO eu T THERMISTERS BLACK RIGHT RED CLEFT BL 83 55 BLA 2 51 1 2 1 5 MIX LOW SENSOR DRANGE SERVE SWITCH BLACK Part Number Description W0570603 Start Capacitor W0570617 Run Capacitor W0570655 Contactor W0570423 8 Pin Terminal Strip W0570043 Bulb W0570638 Compressor Relay W1650004 Solenoid Coil W0650913 Circuit Board W0570044 Light Socket W0570823 3 2 Amp Fuse W1570616 Fuse Holder W0570659 Transformer W0570045 Ballast W0570934 On Off Switch W1570901 Stand By Switch W1572132 6 Wire Cable Sub Assy W0570842 Fuse 5 Amp W05709
21. Wiring Diagram START CAPACITOR WHITE WIRE CONTACTOR ol WHITE WIRE BLACK WIRE C BLACK WIRE E role BLACK WIRE WHITE WIRE zoe RED wire 2164 210 oe SOS YELLOW wire COMPRESSOR 6 gt 2 D RUN CAPACITOR YELLOW WIRE COMPRESSOR START RELAY 5511 0106 057 3 20 00 Crathco 5311 amp 5511 Manual Page 38 5311 Ladder Diagram 115V 60 hz 115V Le 15 CURRENT SENSOR ON OFF SWITCH gt BALLAST FLORECENT LAMP amp 9 oO Reda PRESSURE SWITCH Rete 1 4 TRANSFORMER 1 AC E GND lev FUP 32 MP 5 9 REL THERMISTOR _ THERMISTOR SERVE SWITCH MIX PROBE 4 DC LAW CURRENT 5 SENSOR UN STANDBY CLEAN SWITCH mE 1 8 VOLTAGE SENSDR 7 12V POWER SUPPLY 6 p FOR RELAY OPERATION 5 6 Ie yen Low 7 8 1 Crathco 5311 amp 5511 Manual 39 5511 Ladder Diagram 208 230V 50 Hz 208 230 L1 LE G SERVE switch MIX LOW PROBE 4 UN STANDBY CLEAN SWITCH VOLTAGE SENSOR 7 12 POWER SUPPLY 6 2 FOR R
22. aced into the standby mode to prevent any damage to the machine from running dry of product The unit can be reset back to the freeze mode by simply adding mix into the hopper 1 If the unit is low in mix or the unit shuts down due to extended mix low condition Mix Low safety function has activated refill hopper with fresh product The unit will automatically revert back to its original operation mode 2 If the mix low safety function has activated disabling the unit and the product has not been added for an extended period of time verify the product is okay for re use If it is not use fresh product to restart the unit Empty the unit of old product and follow sanitizing page 14 and start up procedures page 5 Product Tips The Model 5311 amp 5511 was designed to dispense a wide variety of frozen beverages including smoothies frozen cappuccino shakes and frozen cocktails These products can be served in consistencies ranging from thin to fairly thick For optimum long term freezer reliability it is recommended that product thickness not be set too thick Two types of white plastic dispensing valve plungers are available One style part W048 0462 is used to serve these thin to medium products such as cappuccino and cocktails and has one horizontal outlet slot The other plunger part 048 0463 is used to serve thicker product such as shakes and smoothies and has two horizontal outlet slots These plungers are interchan
23. allons 5 7 liters Refrigerant See Serial Number Plate Refrigerant Charge See Serial Number Plate High Side approximate operating pressure 275 to 350psig Low Side approximate operating pressure 40 psig w scraper blade auger High Side Design Pressure 460 psig Low Side Design Pressure 174 psig Crathco 5311 amp 5511 Manual Page 19 Quantities Annually to be Replaced Monthly Every Every Description 3 Months 6 Months Shaft seal Inspect amp replace if necessary Drive shaft Inspect amp replace if necessary Drive belts Inspect amp replace if necessary Scraper blades on dasher Inspect amp replace if necessary Square cut o ring on valve body face plate Inspect amp replace if necessary Front stator flange bearing Inspect amp replace if necessary Rear stator flange bearing Inspect amp replace if necessary Thick Product plunger 2 Standard Product plunger 3 Dispense valve o rings Carb tube o rings Cleaning brush Inspect amp replace if necessary Condenser Inspect amp clean if necessary Refer to the Crathco Parts Price List when ordering the above parts Crathco 5311 amp 5511 Manual Page 20 TROUBLESHOOTING N Only a qualified service technician should perform Electrical and mechanical adjustments or repairs Always disconnect power before attempting any maintenance pro
24. and motor shaft bearings for excessive wear 8 Reinstall side and back panels 9 Re connect power supply Belt Adjustment CAUTION Unplug the machine before performing any adjustments This proceedure must be done by a qualified technician Check the belt tension The proper belt deflection is 1 2 over all If the deflection is more than 1 2 the motor will need to be lowered If the deflection is less than 1 2 the motor will need to be raised Follow this procedure to adjust the motor to achieve proper belt tension 1 Unplug the machine and remove both side and the rear panels 2 Locate the motor flange bearings W038 0009 These are the pillow block bearings that hold the motor to the cra dle The motor is double shafted and the shaft extends through a bearing on each end The bearing is held to the motorcradle by two allen bolts on each bearing 3 Loosen the allen bolts on each bearing Do not loosen the setscrews that hold the bearing collar to the motor shaft 4 Lower the motor or raise the motor as needed The motor must be kept level from front to back Do not lower or raise only one end of the motor This will result in excessive belt wear and belt noise 5 Tighten all four allen bolts down Align the motor pulley with the top pulley if needed 6 The motor pulley should be in alignment with the large driven top pulley Use a straight edge along the top pulley 7 If the pulleys are
25. cedures Problem Freezer will not run or freeze down Product too soft Improper product taste Frozen product too stiff or freezer runs continuously Frozen product not dispensing Liquid coming out of drain tube front of freezer Excessive dispensing valve leakage Scraping sound during freeze down Possible Cause e Freezer not plugged in Circuit breaker tripped or fuse blown e Freezer in CLEAN position Dasher or scraper blades installed e Obstructed condenser air flow e Freezer in Stand by mode e Model 5511 High pressure safety switch tripped Improper consistency control setting Mixed soft no overrun Carburetor set incorrectly Extended non draw period Mix spoiled Used rerun leftover mix Frozen product too fluffy and icy Product frozen too long low draw Consistency control set too firm Dispensing valve not fully closed Power switch OFF Insufficient mix in storage hopper light on beeper Carburetor in off position between holes Carburetor inlet hole clogged Foam buildup liquid mix cannot feed properly Drive belt broken or off of pulley Machine in STAND BY mode Worn defective or improperly installed seal Worn or defective O Rings Replace and lubricate at each cleaning Frozen product scraping off of cylinder walls Solution Plug in machine Reset breaker or replace fuse Switch to FREEZE Insta
26. e O Ring roll it out of the groove with your other thumb Always remove the O Ring far thest from the end of the plunger first See Figure X Note Carefully inspect the O Rings and replace if necessary 9 Remove the dasher assembly taking care to avoid damaging the rear seal assembly at the back of the freezing cylinder Figure X O Ring Removal 4 Remove stationary portion of the shaft seal assembly from the back end of the freezer cylinder This is accomplished by reaching into the cylinder and pulling seal out with your index finger See Figure Y 5 Slide the rotary seal off the the auger shaft Inspect both seal compo nents carefully for nicks or cracks Replace seal if defective Note To prevent leakage both surfaces of the seal must be smooth with no chips or cracks Wash all components in a detergent solution sanitize and allow to air dry Figure Y Remove Stationary part of seal Crathco 5311 amp 5511 Manual Page 14 Cleaning Following Complete Disassembly of Unit IMPORTANT After disassembly thoroughly scour each part of the freezer in a warm mild detergent solution including the inside of the freezing cylinder and the mix storage hopper Rinse each part with cleanwater Prepare a minimum of 3 1 2 gallons 13 liters of sanitizing solution Divorsol CX or equiva lent following the manufacturer s instructions Note Add 3 ounces 85 4 mg of Diversol CX to 3 1 2 gallons 13 liters of 120 Fahr
27. e carb tube sleeve over the solid piece lining up one of the holes with the hole in the solid piece Select the larger hole for thickest products Connect the power cord to a properly grounded 115V 20 Amp or 208 230V 20 Amp circuit depending on the voltage of the dispenser Figure C Crathco 5311 amp 5511 Manual Page 3 Installation of Concealed Air Filter Accessory Kit optional Part 4s W089 0200 Stainless Steel 089 0208 Black INSTALL THE FILTER PANEL OVER THE EXISTING SIDE PANEL 1 Remove the four screws that hold the right side panel on amp RE INSTALL SCREWS the machine 2 Install the filter panel over the existing side panel and reinstall screws See Figure D PIN W0520101 COMES IN KIT 0890220 FILTER PANEL 3 Open top cover of filter cover by raising and rotating away from Figure D the existing panel 4 Slide filter into top of filter cover with removal clip up and the air flow arrows facing the existing panel See Figure E 5 Push filter down until flush with the top of the cover P N W0631805 6 Close the top cover by rotating the top back toward the existing cover and pushing down once it is in place SLIDE THE FILTER IN BEHIND THE FILTER PANEL amp IN FRONT OF THE EXISTING SIDE PANEL TO CHANGE REMOVE CLEAN amp OR REPLACE Figure E Installation of Exposed Filter Accessory Kit optional Part 089 0206 1 R
28. ed with the viscosity thickness of the liquid mix and product draw rate in such a way that the proper amount of mix is fed into the freezer cylinder to blend with air at just the right ratio Mix viscosity varies by mix type mix temperature and mix age Different serving rates also demand different feed rates The Crathco carburetor has an outer sleeve that can be rotated to line up with different hole sizes to provide ideal overrun under all operating conditions You will need to experiment to determine how much mix to add to the freezing cylinder at start up This can be done by watching the level of mix through the clear plastic dispensing valve when filling the hopper When the cor rect amount of mix feeds into the freezing cylinder install the carburetor tube in the Off position outer sleeve set between any two holes and turn the freezer ON to freeze down to proper consistency Overrun Overrun is the increase in product volume expressed as a percentage resulting from the entrapment of air in liquid mix as it is frozen The rotating dasher blends air into the mix as it is frozen resulting in increased product volume For example if one gallon 4 4 liters of liquid mix is poured into a freezer and one and a half gallons 6 6 liters of frozen product is drawn out the result is a fifty percent volumetric increase or a fifty 50 percent overrun Why is overrun important The introduction of air into the finished frozen prod
29. emove the four panel screws 2 Pull the bottom of the panel out 3 Run a bead of the silicone adhesive at the inside back of the bottom filter channel 2 4 Install the channel over the end of the side panel so the adhesive in the channel contacts the bottom edge of the side panel 5 Put the panel with the channel added back in place on the machine and reinstall the two lower panel screws 6 Apply silicone adhesive to the length of the top edge of the upper filter channel 1 before installing then wipe off any excess Figure G 7 Install the upper channel using the upper panel screws 8 Slide filter 3 in from the front with the arrows pointing toward the existing panel The thick wire side of the filter should face outward Crathco 5311 amp 5511 Manual Page 4 Installation of Spinner Mixer Accessory Kit optional Part W089 0053 115V Part W0890124 220V 1 Turn to off and unplug the freezer from the electrical power source Electrical box 2 Remove the white plastic plugs covering the threaded holes on the right front panel facing the freezer 3 Remove the electrical box cover 4 Feed the spinner electrical wires through the 7 8 hole in the spinner mounting bracket 5 Feed these wires up through the 1 4 x 1 2 hole in the right side bottom of the electrical box 6 Secure the spinner to the front of the freezer with the long 1 4 x 20 Sls 3 screws
30. enheit 50 Centigrade water to achieve a concentrations of 200 parts per million Dip or wipe each part in sanitizing solution and allow them to dry on clean paper toweling Reassembly Figure Z Re assemble rotary portion of seal as shown 1 Wet the inner rubber lip of the rotary portion of the seal and the back end of the auger shaft with water Slide rotary portion of assembly onto the auger shaft RUBBER FIRST with the smooth sealing surface toward the back of the auger See Figure Z 2 Insert the stationary portion of the seal into the grooved rubber boot with the polished sun Asing out forward Lubricate the grooved exterior portion of the boot and Figure AA Installing the stationary insert it straight back into recess at the back of the freezing cylin portion seal der RUBBER FIRST 2 E See Figure AA amp BB 25 Note If the circular portion of the seal is white make sure that the groove is toward the rubber back of freezer Fi BB ly install 3 Reassemble the dasher assembly as shown Figure CC Insert the larger front and smaller rear white plastic bearings into dasher then slip in the stator rod Attach scraper blades Carefully and slowly guide the auger into the freezing cylinder taking care not to damage the seal assembly Turn auger shaft until it engages the square drive coupling 4 Reassemble the dispensing valve assembly as shown on Figure DD Thoroughly wa
31. escription 0650501 Access Valve 0200301 W0650112 Filter Drier W0200133 Compressor W0200256 Condenser W0650107 Automatic Expansion Valve 0201120 Hopper Coolant Lines 0201114 Evaporator Line W0201113 Suction Line 0201323 Exp Valve Solenoid Liquid Line W0620102 1 4 x 1 4 x 1 4 Tee W0620110 1 4 Copper Elbow 0201324 Filter Condenser Coolant Line 0201325 Condenser To Tee Liquid Line W0201326 Solenoid Cap Tube Liquid Line 1650002 Solenoid Valves 0620125 1 2 Straight Coupling 0201112 Barrel Warmer W0201371 Compress Condenser Hot Gas Line W0620123 1 2 180 Deg Copper Fitting W0201372 Suction Line Short W0201373 Suction Line Bent 0201155 Liquid Line W0650428 High Pressure Cutout Switch W0201220 Liquid Line 0201151 38 a A ti Dia Condenser Connection W0620112 3 8 Coupling 5511 0108 021 3 20 00 W0201152 5 16 ID x 3 8 ID Straight Coupling Crathco 5311 amp 5511 Manual Page 28 Exploded View Probe Assembly S S PROBE W0572362 ACETAL DELRIN SLEEVE W0572361 ADD SILICON SEALANT TO BACK OF SLEEVE ONLY FLAT WASHER W0611241 PLASTIC SPACER W0572360 HOLE IN REAR OF HOPPER PAN Crathco 5311 amp 5511 Manual Page 29 8 pue 9 35414 JeBunrd sBurJ o
32. geable Over an extended period of time some products such as frozen cocktails that contain alcohol have a tendency to separate or stratify Separation of product in the mix storage hopper can result in frozen product quality inconsistency Simply keeping the product stirred on a regular basis will eliminate this problem Some of cappuccino or latte mixes contain dairy products which can spoil if not refrigerated If the freezer is to be turned off at night these products must be removed from the freezer Contact your local health department regarding its regulations for proper mix handling and storage Product Consistency Adjustment see Figure Location t electionieosntrel board 1 Remove the front electrical box cover by removing the two screws See figure C 2 If the product in the cylinder has been frozen for more than 30 minutes draw out 16 ounces 1 2 liter before checking consistency 3 Turn the consistency control knob located at the top center of the circuit board clockwise to achieve a colder setting or thicker product or counter clockwise to achieve a less cold setting or less thick product See Figure page 10 CAUTION This control setting is very sensitive so always make Figure C small adjustments If you visualize this control as a clock face with the adjuster set all the way counter clockwise it would be 5 00 A recommended setting is 7 00 This would be the warmest setting the machine has A
33. id soap and water 3 Soak filter for 15 minutes 4 Rinse filter with heavy stream of water opposite the direction of air flow Allow filter to dry 5 Slide filter into top of filter cover with removal clip up and the air flow arrows facing the existing panel CAUTION Disconnect power for maintenance Do attempt to perform maintenance on the freezer until electrical power has been disconnected How to Clean Condenser Note Loss of refrigeration efficiency will result if condenser is allowed to become dirty Excessive compressor run time or loss of capacity is a good indication that the condenser needs to be cleaned 1 Disconnect electrical power 2 Remove side panels 3 Place a damp towel over the side of condenser opposite the fan motor 4 Use compressed air or CO to blow out dirt from the fan side of the condenser 5 An alternate cleaning method is to use a condenser brush and a vacuum cleaner CAUTION Procedure can create loud noise Annual Maintenance 1 Disconnect electrical power 2 Clean condenser 3 Remove dispensing valve assembly and replace all O Rings See Care and Cleaning Crathco 5311 amp 5511 Manual Page 17 Annual Maintenance cont 4 Remove dasher assembly inspect stator bearings and replace shaft seal set See Care and Cleaning 5 Remove rear panel and inspect V belt 6 Inspect the drive shaft square hole for wear rounding out 7 Check drive shaft
34. is still controlled by temperature If the thermister signals a raise in temperature the compressor will start and the hopper solenoid valve will be opened It will continue to run until satisfied In the clean mode the drive motor will run continuously The compressor will not run in the clean mode This is for emptying out product for cleaning purposes There are eleven 11 lights on the circuit board that indicate the following See Figure BARREL D1 Illuminated when the freezing cylinder barrel has achieved the pre set temperature in the Stand by mode HOPPER D2 Illuminated when the hopper has achieved the pre set temperature in the Stand by mode WASH Illuminated when the mode switch is in the wash or Clean position FREEZE 04 Illuminated when the mode switch is in the Freeze mode DISPENSE D5 Illuminated when the dispensing valve is open calling for both the compressor and drive motor to operate GREEN CONSISTENCY D6 Off when the motor and compressor are off Illuminated when the compressor and dasher are bringing product to preset consistency Blinks as preset consistency is achieved and then goes out RED CONSISTENCY D7 Blinks as preset product consistency is approached Glows steadily when preset consistency is achieved and then goes out COIL D8 Compressor contactor energized COIL D9 Drive motor coil energized COIL D10 Hopper refrigeration solenoid coil
35. ll dasher and blades Allow 6 15cm on sides Switch to FREEZE Clean condenser check for 6 air clear on each side of unit Re adjust consistency control Drain and refill with fresh mix Re adjust carburetor Use STANDBY during slow business periods Check date code use only fresh mix Use only fresh mix Draw out 1 quart 1 liter dispose of product Allow product to refreeze Re adjust consistency control Close valve lubricate properly Turn Power Switch to Refill storage hopper Set carburetor to proper hole size Unclog carburetor Remove foam from hopper using sanitized utensil Replace or repair Set switch to FREEZE Replace and lubricate per manual Normal sound during freeze down goes away when product is frozen to proper consistency Crathco 5311 amp 5511 Manual Page 21 TROUBLESHOOTING cont Possible Cause Solution Clicking sound from electrical box Low voltage Connect freezer to dedicated circuit of proper rating Extension cord or improperly Connect freezer directly to sized electrical wire power source using properly sized wiring Merchandiser light flickers when Low voltage Connect freezer to dedicated freezer cycles circuit or proper rating Thumping sound from inside Worn drive belt Replace belt freezer If you still need help call our service department at 800 695 4500 Monday through Friday 8
36. mponents 8 10 Sanitizing and Refilling Slide the valve plunger spring over the small end of the valve plunger and using another clean piece of paper toweling pick up the valve plunger at the outlet end and insert plunger and spring into the valve body figure Q Push up on the valve plunger and insert the stainless steel handle figure R Insert the dispensing valve handle retaining pin figure S 1 10 Pour sanitizing solution into the mix storage hopper and allow the solution to fill freezing cylinder Use a large brush supplied to sanitize all hopper surfaces figure T Turn panel switch to CLEAN and allow freezer to run for 20 minutes Open dispensing valve and drain solution Allow the auger to push remaining sanitizer out of the freezing cylinder Place a small amount of sanitary lubricant onto another piece of Figure S Insert Retaining Pin clean paper toweling figure 0 Use a clean piece of paper toweling to pick up the large end of the carburetor from the bottom of the hopper taking care not to touch the sanitized carburetor with your bare hands Apply the lubricant on the other piece of paper toweling to the two O Rings on the bottom of the carburetor assembly figure U Place the lubricated carburetor assembly on a clean piece of paper toweling Figure T Sanitize Hopper Use either fresh product or mix new product according to manufacturer s instructio
37. mula to determine overrun Weight of Weight of Liquid Mix Minus Frozen Product x 100 OVERRUN Weight of Frozen Product For Example If a full cup of liquid mix weighs 23 ounces 652kg and a full cup of frozen product weighs 15 1 2 ounces 439kg then 23 15 1 2 x 100 48 4 Overrun 15 1 2 Note Several companies manufacture scales that automatically read out the overrun for one pint samples A scale of this type is a valuable tool and should be part of any well run operation A trick is to place the empty cup on the scale and zero it out first this will then automatically eliminate the weight of the cup from the calculation Overrun has a major impact on the size of the finished frozen portion As the percentage of overrun air in the frozen product increases the size of the finished portion also increases yet the portion weight remains the same For example an increase from 25 to 50 overrun will yield a 20 larger portion Customers equate size with perceived value so proper overrun will result in increased customer satisfaction Experiment with carburetor settings to achieve optimum overrun and product quality with each mix Some products such as Cappuccino taste better with low overrun Experiment with different carburetor settings to find the ideal combination for each product Use of Stand By Switch The STAND BY switch allows the operator to retain optimum product quality and conserve energy during extended non
38. not in alignment remove the setscrew from the motor pulley and move either in or out as needed 8 Reinstall the setscrew Use non permanent loc tite on the setscrew and tighten it back down on the motor shaft Please be sure the setscrew is tightened down flat on the motor shaft 9 Return the unit back to service Crathco 5311 amp 5511 Manual Page 18 5311 FREEZER SPECIFICATIONS Circuit NEMA NEMA 5 20R Electrical 115 volt 60 Hz 1 Phase Dedicated 20 Amp circuit Drive Motor 1 4 hp Capacitor Start Run Compressor 3 4 hp Cooling Air Cooled Optional Water Cooled Actual Weight 175 Ibs 79 4 kg Mix Hopper Capacity 5 gallons 18 9 liters Freezing Cylinder Cap 1 1 2 gallons 5 7 liters Refrigerant See Serial Number Plate Refrigerant Charge See Serial Number Plate High Side approximate operating pressure 275 to 350psi 19 to 25 k cm Low Side approximate operating pressure 35 w standard to 45 w scraper blade auger psi 2 5 to High Side Design Pressure 420 psig Low Side Design Pressure 174 psig 5511 FREEZER SPECIFICATIONS Circuit NEMA NEMA 6 20R Electrical 208 volt 60 Hz 1 Phase Dedicated 20 Amp circuit Drive Motor 1 2 hp Capacitor Start Run Compressor 1 hp Cooling Air Cooled Weight 185 Ibs 84 kg Mix Hopper Capacity 5 gallons 18 9 liters Freezing Cylinder Cap 1 1 2 g
39. ns Fill mix storage hopper with product Open dispensing valve Pour product into the hopper and allow this product to chase out any remaining sanitizer Figure U Lubricate Carb Tube Crathco 5311 amp 5511 Manual Page 13 Sanitizing and Refilling cont 11 Watch the product flowing out of the dispensing valve and close the Valve when the sanitizer remaining in the cylinder has been purged by the new mix 12 Use a clean piece of paper toweling to insert the sanitized carburetor assembly into the inlet hole in the hopper figure 13 Fill mix storage hopper with fresh product 14 Turn front panel switch to ON Allow approximately 20 to 30 minutes for the freezer to reach proper consistency Cleaning Following Complete Disassembly of Unit 1 Remove knobs and carefully remove the front dispensing valve assembly 2 Disassemble the dispensing valve assembly by removing the retaining pin pushing up on the plunger assembly and pulling out the handle This will allow the plunger assembly complete with O Rings to be removed as a unit Remove the spring Remove the O Rings from the plunger assembly and back of the dispensing valve body See Figure W Figure W Exploded View of Dispensing Valve Note The best way to remove an O Ring is to first wipe off all of the lubri cant using a clean paper towel Pinch the O Ring upward with a dry towel between your index finger and thumb When a loop is formed in th
40. remain off until either the timer in the control board either 10 or 15 minutes dependent upon which value is selected restarts the drive motor In this case the drive motor will run for 45 seconds and if no refrigeration is required the drive motor will then shut off If refrigeration in the barrel is required the freeze cycle is repeated as well as the blending cycle The unit will also restart the drive motor if the plunger is raised The plunger switch will start the drive motor and remain on as long as it is held open After the plunger is closed the drive motor will contin ue to run for 45 seconds The compressor will start and barrel solenoid valve will open If refrigeration is required during this time the freeze cycle and blend cycle will follow Crathco 5311 amp 5511 Manual 9 Consistency Control Overview cont In the standby mode the control board senses the temperature of the product in the barrel The drive motor is cycled on time only It will operate for 2 minutes ON then 18 minutes OFF as long as it is in standby The com pressor and drive motor are cycled independently for the barrel in the standby mode Once the barrel thermister signals to the board the board will start the compressor and the barrel solenoid valve will open as refrigeration is required It will continue to run until satisfied The plunger switch is disabled and the drive motor will not start when the plunger is opened The hopper
41. sh and sanitize all components lubricate the inside bore of valve body with a thin film of food grade sanitary lubricant Reinstall the O Rings on the plunger assembly and lubricate the entire plunger Reassemble the valve and replace the retainer pin Inspect and lubricate the large O Ring and refit it into the rear of the valve assembly Install the valve assembly on the front studs and tighten knobs until they are finger tight Do not use tools to tighten knobs Figure DD Crathco 5311 amp 5511 Manual Page 15 Reassembly cont 5 Disassemble the carburetor assembly and remove the O Rings Wash and sanitize all parts 6 Reinstall and lubricate the O Rings and slip on the outer tube if equipped See Figure EE Figure EE Thick product carb tube Standard carb tube Low overrun Sanitizing and Refilling carb tube 1 Prepare a minimum of 3 1 2 gallons 13 liters of sanitizing solution Diversol CX or equivalent following the manufacturer s instructions Note Add sanitizer to 3 1 2 gallons of water warm to achieve a concentration of 200 parts per million 2 Pour sanitizing solution into the mix storage hopper and allow the solution to fill freezing cylinder Use a brush to clean the hopper sides and bottom 3 Turn panel switch to CLEAN and allow freezer to run for 5 minutes 4 Open dispensing valve and drain solution Turn freezer to CLEAN for a few seconds to allow the auger to push remaining saniti
42. t will make the machine inoperable if the mix gets low and is not refilled after ten minutes The normal sequence is five beeps every two minutes for a total of ten minutes then shut down occurs until the unit is refilled These same units will also have a forty five second dasher run time after the compressor turns off Consistency Control Overview CAUTION SHOCK HAZARD THIS ADJUSTMENT REQUIRES REMOVAL OF THE ELECTRICAL BOX COVER AND SHOULD BE MADE BY A QUALIFIED SERVICE TECHNICIAN The freeze mode consistency setting adjusts the frozen product thickness In the freeze mode as the liquid mix in the cylinder freezes it becomes harder for the motor to turn the dasher assembly The control board senses the amount of energy that the drive motor consumes as it rotates the dasher assembly through the product in the cylin der The control board will turn the compressor and barrel solenoid valve off at the proper consistency The drive motor will continue to run for 45 seconds after the compressor is cycled off This is called the blending cycle After the blending cycle is complete the drive motor also is shut off The drive motor and compressor will run together at any time refrigeration is required in the barrel The compressor will run independently for the hopper if required The hopper is controlled by temperature The thermister will signal the board and the board will start the compressor and open the hopper solenoid valve The unit will
43. to the storage hopper Allow the water to fill the freezing cylinder 6 Turn the mode switch to CLEAN for 5 minutes 7 Open the dispensing valve and drain the water from the freezer Daily Cleaning Procedure Clean in place 1 Pull out valve handle retaining pin while supporting the valve plunger from the bottom figure J Push up on the valve plunger and remove the stainless handle figure K Slide the valve plunger and spring downward to remove figure L Remove the plunger O Rings as shown in figure M Figure J Remove Pin Figure K Remove Handle Figure L Remove Plunger and Spring Crathco 5311 8 5511 Manual Page 11 Daily Cleaning Procedure cont Note The best way to remove an O Ring is to first wipe off all of the lubricant using a clean paper towel Pinch the O Ring upward with a dry towel between your index finger and thumb When a loop is formed in the O Ring roll it out of the groove with your other thumb Always remove the O Ring farthest from the end of the plunger first See figure M 2 Take all components to the cleaning area 3 Carefully inspect the O Rings and replace if necessary Cleaning Carburetor Dispensing Valve and Plunger Assembly 1 Prepare 1 gallon solution of hot tap water and a good grade of dishwasing detergent 2 Thoroughly wash valve plunger spring carburetor assembly and all Rings in detergent solution 3 Using medi
44. uct is essential from two standpoints taste and profitability Frozen product with a low percentage of overrun costs more to serve appears wet and is heavy The introduction of air makes the finished frozen product taste richer Too much air causes the finished product to be too light and fluffy making it less satisfying and adversely affecting sales The optimum percentage of overrun varies from one type of mix to another but 50 overrun is a good average The ingredients in some mixes take on and hold air easier than others Overrun also affects profitability For example an increase from 25 to 50 overrun represents a mix savings of 17 Uniform overruns insures consistent portion costs If overrun is allowed to drop it will cost more to serve a portion of finished product Computing Overrun 1 Weigh an empty cup 2 Weigh this cup filled to the top with liquid mix and subtract the weight of the cup Note Repeat this step only when changing mix sources as mix weight will vary slightly from one supplier to another Crathco 5311 amp 5511 Manual Page 6 Computing Overrun cont 3 Draw a heaping cup of frozen product that contains no air pockets Note Use a spatula or other device to help fill the cup completely Avoid tamping the cup as this artificially reduces overrun 4 Use a straight edge to scrape off excess product flush with the rim of the cup and weigh the cup 5 Subtract the cup weight and use the overrun for
45. um sized brush supplied with freezer clean the bottom of the valve body and the inside of the plunger bore with detergent solution taking care to remove all remaining lubricant figure N Figure N Clean Valve Body Sanitizing Carburetor and Valve Components 1 Re assemble carburetor assembly installing the two O Rings at the bottom of the carb tube 2 Place the carburetor assembly in the bottom of the hopper 9 Replace Rings on valve plunger and lay plunger assembly on a clean piece of paper towel 4 Prepare a minimum of 4 gallons 15 liters of sanitizing solution Stera Sheen Green Label or equivalent following the manufacturer s 5 instructions Note Add 4 ounces of Stera Sheen to 4 gallons 15 liters of 120 Fahrenheit 50 Centigrade water to achieve a concentration of 100 parts per million 2 Figure Sanitize Valve Dip the medium sized brush supplied into the sanitizing solution and sanitize the inside bore of the dispensing valve figure O 6 Place a small amount of sanitary lubricant onto a piece of clean paper toweling figure P yo Use a clean piece of paper toweling to pick up the small end of the valve 5 plunger assembly Apply the lubricant on the other piece of paper toweling to the O Rings on the valve plunger assembly figure P Figure P Lubricate Plunger Crathco 5311 amp 5511 Manual Page 12 Sanitizing Carburetor and Valve Co
46. zer out of the freezing cylinder If you are using a concentrated product mix the product according to the manufacturer s instructions 6 Open dispensing valve Pour product into the hopper and allow this product to chase out any remaining sanitizer Watch the product flowing out of the dispensing valve and close the valve when the new mix has purged the sanitizer remaining in the cylinder 7 Sanitize and install the carburetor Figure R Refill mix hopper 8 Turn front panel switch to ON Allow approximately 20 to 30 minutes for the freezer to reach proper consistency MAINTENANCE Suggested Weekly Maintenance 1 Clean lubricate and sanitize the freezer following guidelines in Care and Cleaning 2 Clean the exterior of the freezer using a soft wet cloth Crathco 5311 amp 5511 Manual Page 16 How to Clean Exposed Filter 1 Slide exposed filter out of the rails by pulling forward on the filter It is recommended to remove the filter by using the palm of your hand and applying even pressure to the face of the filter 2 Clean filter with liquid soap and water 3 Soak filter for 15 minutes 4 Rinse filter with heavy stream of water opposite the direction of air flow Allow filter to dry 5 Slide the filter into the rails until the filter contacts the stop on the top rail How to Clean Concealed Filter 1 For concealed filters lift lid and pull up on filter tab to remove filter 2 Clean filter with liqu
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