Grindmaster 3511 User's Manual
Contents
1. sues MERCURY SWITCH YELLOW 6 LS MOTOR CORD lok H oa SPINNER WIRES EE MIX LOW WIRES BLAISE FAN WIRES 5 50 52 53 56 57 58 59 60 W0570047 BALLAST 4 50 ER ER 56 EA 58 ER Model 3511 Page 19 Model 3511 Compressor Wiring START CAPACITOR RUN CAPACITOR RED COMPRESSOR WIRES k Page 20 Model 3511 Model 3511 Ladder Diagram 115V 24V MIX LOW LAMP FLOAT SWITCH TOGGLE SWITCH MERCURY SWITCH DELAY TIMER FREEZE COMPRESSOR CONTACT SEE DETAIL FAN MOTOR DRIVE MOTOR Y BALLAST FLORECENT LAMP Ge 1 S SWITCH SPINNER MOTOR Model 3511 Model 3511 Spinner Wiring 1 K E84 MERCURY SWITCH f WHITE BLACK a MOTOR CORD ss BROW 3 s SPINNER WIRES WHITE E GREEN som 3 MIX LOW WIRES BLACK GREEN Page 22 Model 3511 Model 3511 Refrigeration SG d i U i d AJ eb d F 12 ll Condenser WO200256 Copeland Compressor G gt 100740 Automatic Expansion Valve w0650104 Model 3511 m Model 3511 Refrigeration Schematic HOPPER E I I us Ax bo e Z I I I f N EVAPORATOR I lt I I I I x I I ACCUMULATOR I IN I SUCTION2. ITEM NUMBER DESCRIPTION ITEM NUMBER DESCRIPTION 1 W0210169 Motor Cradle 7 W0610559 Bolt for Bearing 2 W0320020 E eet lg W0611249 Washer Split Lock Z P 3 WO321013 Nut Motor Adjustment 9 W0671022 oa TEE 4 W0321027 Pin Sleeve 10 W0170014 Consistency Control 5 W0380009 1 Bore Flange Bearing 11 W0321025 Motor Stop Brkt Assy 6 W0450016 Pulley OK7 x 1 2 Browning 12 W0630421 Cable Clamp Model 3511 Page 17 Model 3511 Electrical Box Assembly DESCRIPTION W0572287 Electrical Box W0570044 SOCKELLIGHT LEVITON W0570235 Terminal Block 4 Circuit Contactor O RT NO o nA SJ CH os sO LO TT r gt Heat Sequencer e Cn l O bo 4 o C Q D c O gt 10131 0610015 6827 272 3151 0630006 1606 Electrical Box Lens W0610132 18 32 x 1 4 Screw W0570688 Transformer 1078 Relay Bracket W0570694 CAPACITOR START 01 4 0036 01 WO0570695 CAPACITOR RUN 01 4 0037 15 SCRW 8X3 8 PH PN T B ZNC GN 6 32 x 1 4 Screw 6 32 Hex Nuf SCRW 8X3 8 PH PN T B ZNC GN Washer Lock 8 Ext Tooth Heyco Snap Bushing m lt b Cn C25 SN ca IO Jon IGO N O z z e el z z z z iz x o O e e in O O Cn Cn mJ LA i i C c O O Cn CA Cn D LLL 19 Run amp Start Capacitors for the Copeland Compressor mount at the rear of the machine Model 3511 Page 18 Model 3511 Wiring Diagram
3. G GRINDMASTER CORPORATION Model 3511 Beverage Freezer Manual Grindmaster Corporation 4003 Collins Lane fy Crathco Louisville KY 40245 USA 502 425 4776 800 695 4500 FAX 502 425 4664 www grindmaster com Frozen Beverage Dispensers Formerly Wilch Grindmaster Corporation 2004 0804 Form WH 305 02 PRINTED IN USA Part W0600114 Table of Contents Safety Te Un CH 2 Freezer Applications amp Specifications 2 3 STA de WEE 4 6 Operation and Adjustments 6 7 Care e ee uu u u mus 8 11 UAC NC eege 11 13 TroublesnoD Un sisi 14 Key Parts Id tific8 tl n uuu TE m I UMS 15 Assembly Diagioni cn 16 18 UTs Ts DiagramS si 5 aan hral kesm 19 22 Refrigeratioh Diagrammi aan 24 Information contained within this manual is subject to change without notice Contact Grindmaster Corporation s Customer Technical Service Department at 1 800 695 4500 with any questions or for clarification Model 3511 Page 1 OPERATOR S SAFETY PRECAUTIONS IMPORTANT Failure to comply with the following safety precautions may result in severe personal injury or damage to the machine 1 Read and understand the operating instructions in this manual thoroughly Only allow properly trained persons to operate this machine Note all warning labels on the
4. Adjustment Screw NOTE When making changes to a colder thicker setting recheck consistency again after the compressor has cycled off When adjusting counter clockwise to a thinner consistency a large portion of product should be drawn from the dispense valve to reduce the product thickness below the new set point adjustment Then allow the freezer to refreeze product to the new setting Increase Thickness turn clockwise Decrease Thickness turn counterclockwise Figure L Model 3511 Page 7 CARE AND CLEANING Cleaning and sanitizing frequency must be followed according to state and local health department regulations NOTE Each time the freezer is fully disassembled all foodzone freezer components must be thoroughly washed and sanitized using procedures recommended by the 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 Disassembly and Cleaning If there is product in the freezer turn the front panel switch to CLEAN Most users schedule cleaning when product in the hopper is low to minimize product loss 2 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 and turn the switch on
5. A preventative maintenance visit should be performed every 6 to 12 months depending on the usage and environ ment where the unit is placed Ex seasonal machines once before season year round machines twice per year The following procedures should be performed during a preventative maintenance visit This does not take the place of daily care and cleaning procedures as described by local health codes and the manual PM kit W0890157 con tains the standard replacement parts needed for preventative maintenance including o rings standard seal kit stator bearings and drive belt Units with a coconut oil product seal should order all parts separately Units with scraper blade dasher will require the scraper blades be ordered separately e Verify ventilation is adequate Air cooled units 6 minimum on both sides open at top and as far as possible from dust sources Water cooled units 0 on both sides 3 6 at rear of unit and open at top e Verify adequate water flow and drain connections on water cooled versions e Check product temperature and consistency for proper setting refer to product manufacturer s recommendation adjust if necessary Where equipped be sure to check the temperature in both the hopper and cylinder e Ensure product is being mixed properly and is within specification check brix most products should be around 13 refer to product manufacturer s recommendations for exact recommended brix e Check for any
6. I an _ I COMPRESSOR I V I OUT i I DISCHARGE I I NIPPLE WARMER I m TUBE CONDENSER AA o uu lt po rh e E Lasso LIQUID VALVE SIGHT V T Y A ZA oi gt CUE CAPILLARY Page 24 Model 3511 Model 3511 Page 25 GRINDMASTER CORPORATION Grindmaster Coffee Grinders and Brewers e Espressimo Espresso Machines e Crathco Hot Beverage Dispensers Crathco Cold and Frozen Beverage Dispensers e American Metal Ware Coffee and Tea Systems Tel 502 425 4776 e Fax 502 425 4664 e 1 800 695 4500 P O Box 35020 e Louisville KY 40232 e USA il i 4 Form WH 305 02 www grindmaster com e email info grindmaster com 0804 Form Part W0600114 O Grindmaster Corporation 2004 PRINTED IN USA
7. L epnjoul LOZOPEOM 3Jed Butsn 27 e se JeyleBo seuoo e9s p1epue s pue OLZOVEOM IP9S IIO Inuo5o5 J038JNQJE exe 8TUY300US euorid que exeus erui SI 1300 82211904 NS vELLZvOM UTd SATBA vii Tees Butuds SA89TS JOJOUNGUBI exeus eTY100WS 9uorido eu 0EZLEIOM LLOOPE0M BurTuds JeBunTd L Bugy Tees AUBUOTILIS 2 9 sBuru o J018JnqQJ85 089 L 2 m B m 2 LOOPEOM ZZOOPEOM Set ufu o e eers Seil e s uru o JeBunra SU 8 248d Jegany Tees AueuorT3e15 S 83yJ8d BUTTPUBU 8JOJOG SUOTIINJISUT JUSWATnba peeu OUTUJRU JO SOPTS uo TTFJ UOTIETTIU8A J6A09 OU OQ LST 323 HO NOILVOISILNAGI S LHVd Model 3511 Exploded View Model 3511 Optional Slush Plunge ITEM NO PART NO DESCRIPTION ITEM NO PART NO DESCRIPTION 1 W0201272 Cylinder Assembly 28 W0472062 Pan Drip Form X LG 2 W0210106 Base Pan Assembly 29 W0472063 Insert Drip Pan X LG 3 100740 1 HP Compressor 230V 30 W0472064 Drip Pan Bracket 4 W0200256 Condenser Coil Air CFB 31 W0630711 Valve Knob 5 W0322000 Fan Assy 220 60 32 W0631632 Drip Tray 6 W0321026 Drive Motor Assembly 33 W0611728 FasPin Valve 7 W0210083 Frame Assembly 34 W0480451 Thick Product Plunger 8 W0572247 Electrical Box Assembly 35 W0110013 Valve Studs 9 W057004
8. dispensing valve is attached to the front of the freezing cylinder The unit has an adjustable consistency control and an out of product indicator When properly operated and cared for the Model 3511 will provide many years of service Proper care includes regular cleaning and maintenance To minimize the amount of maintenance necessary follow the operating procedures outlined in this manual Product Tips The Model 3511 was designed to dispense a wide variety of frozen beverages including frozen fruit juice frozen lemonade slush and frozen cocktails These products can be served in consistencies ranging from thin to fairly thick Two types of dispensing valve plungers and product consistency springs are available depending on the thickness of the product being served These parts are interchangeable depending upon your needs One plunger part W0480438 has one horizontal outlet slot and is used to serve thin to medium products such as frozen lemonade and slush The other plunger part W0480451 has two horizontal outlet slots and is used to serve thicker product such as neutral base frozen cocktails A red spring part W0631239 is used on the drive motor to adjust product consistency to serve thin to medium products The yellow spring part W0631238 is used for thicker product The spring is locat ed next to the drive motor behind the right hand side panel Over an extended period of time some products such as frozen cocktails that contain alco
9. frozen drinks from one Mounting screws IS x machine i e hazelnut added to cappuccino See Figure E K M A g e Concealed Air Filter Prevents dust from clogging the condenser EI Ideal for applications near beaches Helps maintain maximum air cime N flow and optimum freezer performance See Figure F EX NSF approved Part W0890200 stainless steel W0890208 black Exposed Air Filter Similar to concealed air filter Not NSF Spline approved Part W0890206 See Figure G Figure E e Valve Lock Security Bracket Part W0471135 Ideal for self service locations to prevent unauthorized use Lock must be purchased separately See Figure H e Remote Fill Control Automatically refill the mix storage hopper Provide additional labor savings by pre mixing product automatically and monitoring system to maintain the mix hopper level e Private Label Header A private label or different drink header can be installed by removing two screws from the electrical box cover Place the header transparency between the clear and opaque plates plastic lens Put these in place under the lip of the machine top Slip the electrical box cover back on to the machine and reinsert the screws See Figure l Grindmaster offers a variety of drink headers including frozen beverage frozen lemonade cappuccino margarita pina colada frozen cocktail frozen daiquiri and smoothie rm A eT Spinner mounting bracket Eu
10. o 5 8 1 Unplug the machine and remove both side and rear panels gt jj 2 Locate the motor flange bearings These are the side mounted bearings that l n Y SN D M hold the motor to the cradle The motor is double shafted and the shaft NA _ j z OE S extends through a bearing on each end The bearing is held to the motor PV cradle by two allen bolts on each bearing pia 3 Loosen the allen bolts on each bearing Do not loosen the setscrews that hold Figure FF 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 not in alignment loosen the setscrew on the motor pulley and move either in or out as needed 8 Tighten the setscrew back down on the motor shaft use of non permanent loc tite is recommended Please be sure the setscrew is tightened down on the flat surface of the motor shaft 9 Return the unit back to service How to Change Back Lit Sign Merchandiser Bulb 1 Remove the two screws located on the top of either side of the sign 2 Lower the metal enclosure that frames the merchandiser insert 3 Pull
11. over 100 F 37 8 C will Figure C significantly reduce the performance of your machine 3 Remove the side panels and supporting all four sides lift machine up by the frame and place in appropriate area on top of rubber pad REMOVING CABLE TIE A CAUTION If equipped with spinner do not lift unit up by spinner shaft It will cause serious damage to spinner A CAUTION Beverage freezers are heavy pieces of equipment It is recommended that moving or lifting the unit be done by two people to avoid injury Figure D 4 The side panels should still be removed Cut the cable tie used to secure motor during shipment Make sure motor rocks freely Figure D Page 4 Model 3511 Installing Your Unit cont 7 Review hopper contents to make sure all parts are available Part Description W0600114 Manual W0600073 Rubber Pad Sheet W0600121 Merchandiser Installation Sheet W0600012 MSDS Sanitizer Sheet W0600159 Warranty Registration Card W0890218 Drip Tray Kit W0520094 Hopper Cover W0480445 Valve Handle W0631230 Valve Spring i Carb Tube N Dispense Valve Plunger W0470076 Lubricant W0631903 Sanitizer Packets W0340022 O rings Optional items specified when the unit is ordered 8 Fill out Warranty Registration Card with the requested information and mail to Grindmaster Corporation 9 Replace side panels 10 Assemble the dispense valve foll
12. seal has a white polished surface The stationary half of the coconut oil seal has a glossy black surface 6 Remove carb tube from bottom of hopper and remove o rings See Figure S 7 Remove drip tray and empty contents 8 Take all components to the cleaning area 9 Prepare 1 gallon solution of hot tap water and a good grade of dishwashing detergent 10 Thoroughly wash all components in a warm mild detergent solution including the inside of the freezing cylinder and the mix storage hopper DO NOT WASH SE GE COMPONENTS IN A DISHWASHER NN Figure S Carb Tube 11 Use a medium sized brush to clean the bottom of the valve body and the inside of the plunger bore with detergent solution taking care to remove only remaining lubricant Figure T 12 The exterior of the freezer should be cleaned as needed with a cloth towel E Da cane d T CAUTION Coarse rags abrasive cleaners and excessive force can damage and or scratch the surfaces of the freezer Reassembly NOTE Allow all parts to dry completely before reassembly 1 Reassemble drip tray and re install on front of unit 2 Wet the inner rubber lip of the rotary half of the seal and the back end of the dasher shaft with water Slide rotary half of assembly onto the dasher shaft RUBBER FIRST with the smooth sealing surface facing the back of the dasher See Figure U Be sure the rotary half is fully seated against the shoulder of the shaft 3 Insert the stationary half
13. 7 Ballast 36 W0611085 Nut 5 16 18 S S Hex Nut 10 W0572290 Light Reflector 37 W0340022 Plunger O Rings 11 W0631610 Front Display Lens 38 W0570018 Light Indicator LT Red 12V 12 W0631614 Acrylic Lens 39 W0520063 Rear Machine Panel 13 W0572452 Electrical Box Cover 40 W0520065 Right Side Panel 14 W0211112 Drain Tube Fitting 41 W0520107 Left Side Panel 15 W0340058 Barrell Gasket 42 W0380025 Bearing 1 Bore 16 W0340007 108 Float O Ring 43 W0451067 Driveshaft Slush 17 W0570941 Mix Low Indicator Float 44 W0450209 Belt V 18 W0430089 Dasher Weldment Scraper 45 W0450053 Pulley 10 19 W1431084 Scraper Blade New Style 46 W0471075 Carb Tube Slush Cocktail 20 W0430029 Stator Rod 47 W0340011 O Ring 115 Buna N Carb Tube 21 W0430024 Rear Stator Bearing 48 W0520094 Hopper Cover 22 W0340201 Shaft Seal Set 49 W0570043 Bulb Fluoresent 23 W0430032 Stator Flange Bearing 50 W0480438 Slush Plunger Standard 24 W0480450 Valve Body 51 W0572511 Bracket Capacitor Support 25 W0340055 Valve Square Cut O Ring 52 W0570617 Run Capacitor 26 W0631230 Valve Spring 53 W0570619 Start Capacitor 27 W0480445 Valve Handle Page 16 Model 3511 Model 3511 Base Assembly DESCRIPTION s wo200703 Copeland Compressor Sub Assy 6 wo611074 Nut Hex 1 4 20 7 P 8 W0611247 1 4 Int Tooth Lockwasher 9 wo200412 spacenCompresor Drive Motor Assembly See figure on left PART PART
14. FILTER SLIDE THE FILTER IN BEHIND Figure F THE FILTER PANEL amp IN FRONT OF THE EXISTING SIDE PANEL OPERATION AND ADJUSTMENTS TO CHANGE REMOVE CLEAN AND OR REPLACE How to Operate 1 Sanitize unit following the cleaning instructions starting on page 10 2 Fill the mix storage hopper following the instructions on page 10 Allow barrel to fill with product to proper level then insert carb tube from parts bag in hole toward rear of hopper See Figure J Turn power switch to ON position Allow product to freeze in barrel Compressor will turn off when product reaches pre set consistency To dispense product pull down valve handle and release when done If product consistency is not as desired adjust per the instructions on page 7 Refill mix storage hopper when mix out light is ON Clean the unit regularly following local health codes Perform maintenance when necessary to increase the life of the unit See chart in this manual for regular maintenance schedule E Y CO 0 Y O Ol Mix Low Function 1 This model utilizes a simple float mechanism to sense when mix is low in hopper See Figure J When the mix level in the hopper is low the mix low MER light located in the front of the machine next to the valve block will illuminate Figure H NOTE Do not run the unit under mix low conditions for long periods of time This can affect machine performance or damage componentry Ie GCO
15. S OE ENS PLASTIC LENS amp THE WHITE PLASTIC LENS SEPARATE THE TWO LENS PEICES amp INSERT THE TRANSPARENCY THEN REINSTALL ALL REMOVED INSERT TRANSPARENCY IN BETWEEN WHITE PLASTIC LENS GOES IN FIRST CLEAR PLASTIC LENS GOES IN LAST Figure l Page 6 Model 3511 Consistency Adjustment From time to time it may become necessary to readjust the consistency setting thickness to compensate for variation between different mixes or to switch from one type of product to another This adjustment is made as follows 1 Disconnect electrical power Mix Low Float O ring E Carburetor WARNING Do not attempt to readjust the freezer until electrical e power has been disconnected a 2 Remove right side panel facing the freezer 3 Use the adjustment screw situated on the front of the drive motor mounting bracket to change product thickness Turn the thumbscrew 3 full turns for red spring 1 turn for yellow spring to make a noticeable LI change in consistency See Figure K NOTE Clockwise is for thicker product consistency and counter clockwise is for thinner product consistency See Figure L Figure J 4 Reinstall the side panel reconnect power 5 Turn freezer to ON and allow it to freeze to desired consistency 6 Check product Repeat process until desired consistency is achieved
16. age Different serving rates also demand different feed rates For many prod ucts 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 prof itable At this ratio one gallon of liquid mix will yield a volume of one and one half gallons of frozen product This additional volume is the overrun in the product Crathco offers three versions of carb tubes see Figure A Depending on the product being served and overrun requirements there is a standard tube for most slush or cocktail products a low overrun carb tube that allows all air trapped in the freezing cylinder to escape and a smoothie shake carb tube This carb tube has an outer sleeve that can be rotated to line up with different hole sizes to provide various levels of overrun Most applications only require the standard carb tube See z X C Thick product carb tube Standard carb tube Low overrun W0471136 W0471076 carb tube W0472060 Moe MEE gU ao Z amp Figure A Mix Considerations General Freezing characteristics are affected by the amount of sweeteners and solids in the mix The amount of sweeteners and solids is 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 M
17. ce if necessary Verify alignment when replacing e Check V belt tension should be 1 2 5 8 and verify all set screws are tightened adjust if out of range Replace belt once per year minimum e Verify compressor operation and freezer controller operation e Check electrical connections outlet should be properly grounded with amperage capacity equal to or over the amperage specified on the serial tag e Check fan operation condenser fan and clean fan blades if necessary e Review proper periodic care and cleaning instructions disassembly cleaning sanitizing lubrication and re assembly with store personnel Train store personnel to follow proper procedures stress importance of store level maintenance ie lubrication filter cleaning etc e Make sure store personnel have appropriate supplies lubricant cleaning brushes and sanitizer to care for machine Page 12 Model 3511 How to Clean Condenser Air Cooled Unit Onl NOTE Loss of refrigeration efficiency will result if condenser is allowed to become dirty Excessive compressor run time or loss of capacity are 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 the condenser opposite the fan motor 4 Use compressed air or CO2 blow out dirt from the fan side of the condenser An alternate cleaning method is to use a condenser brush and vacuum cleaner N cau
18. e and valve block are aligned insert the dispensing valve handle retaining pin Figure CC 10 Pour sanitizing solution into the mix storage hopper and allow the solution to fill freezing cylinder Use a large brush to sanitize all hopper surfaces Figure DD 11 Turn panel switch to CLEAN and allow freezer to run for 5 minutes 12 Open dispensing valve and drain solution Allow the dasher to push remaining sanitizer out of the freezing cylinder Once the sanitizing solution is drained turn panel switch to OFF 13 Place a small amount of sanitary lubricant onto another piece of clean paper toweling 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 hand Figure EE Apply the lubricant on the other piece of paper toweling to the two o rings on the bottom of the carburetor assembly Figure EE 14 Place the lubricated carburetor assembly on a clean piece of paper Figure AA Installing Plunger and Spring toweling 15 Prepare fresh product according to manufacturer s instructions 16 Hold open the dispensing valve and pour product approx 10 oz into the hopper to 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 17 Use a clean piece of paper toweling to inser
19. freezer If any warning labels are missing or damaged replace them immediately Do not wear loose fitting garments or jewelry which could cause a serious accident Stay alert at all times during operation Keep operating area clean Do not attempt any repairs unless the main power supply to the freezer has been disconnected Contact Grindmaster Technical Service for service assistance Do not put objects or fingers in the dispense plunger Do not operate freezer if any excessive noise or vibration occurs Contact your authorized service agent Be certain machine is installed with adequate space for proper air circulation See installation section Failure to provide sufficient ventilation will reduce freezer performance and void equipment warranty CAUTION RISK OF ELECTRIC SHOCK DIS oo ROI CO 0 N CONNECT POWER BEFORE SER VICING UNIT HAZARDOUS MOVING PARTS DO NOT OPERATE UNIT WITH PANELS REMOVED Located on the right left and rear panels part W0600218 FREEZER APPLICATION AND SPECIFICATIONS Model 3511 The freezer consists of a freezing cylinder with a rotating internal auger dasher that is belt driven by an electric motor The auger scrapes frozen product off of the inside of the refrigerated cylinder A torque sensing mechanism controls compressor operation to maintain desired product consistency The freezer utilizes an air cooled refrigera tion system to freeze the product A self closing
20. hol have a tendency to separate or stratify Separation of product on the mix storage hopper can result in frozen product quality inconsis tency Simply keeping the product in the mix storage hopper stirred on a regular basis will eliminate this problem Page 2 Model 3511 Product Tips cont Some cappuccino or latt 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 ts regulations for proper mix handling and storage Carburetor Assembly Your new freezer uses a metering device known as a carburetor to feed the proper ratio of mix and air into the freez ing cylinder and to prevent frozen product from rinsing out of the freezing cylinder The carburetor or carb tube is a tube with a hole or series of holes bored through the side It is located in the hop per and fits in the 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 p gt 25 of the carb tube The size of the mix inlet hole can be e balanced with the viscosity thickness of the liquid mix C lo and product draw rate in such a way that the proper 2 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
21. ith detergent solution taking care to remove any remaining lubricant 9 Reassemble following the instructions under Sanitizing and Refilling NOTE Run the unit with sanitizer on CLEAN for 20 minutes before draining and refilling N 00 RG MAINTENANCE WARNING Disconnect power for maintenance Do not attempt to perform maintenance on the freezer until electrical power has been disconnected Suggested Daily Maintenance 1 Clean lubricate and sanitize the freezer following guidelines 2 Clean the exterior of the freezer using a soft wet cloth Wipe down spinner if attached 3 Empty drip tray Parts Replacement Schedule Part Month Every 3 Every 6 eet Quantities to Description N Months Months M be Replaced Shaft Seal Replace uz I Drive Shaft Inspect amp replace if W0451067 necessary Drive Belts Inspect amp replace necessary W0450209 Scraper blades on dasher if eguipped Replace W1431084 Square cut o ring on body face plate SE W0340055 y LUN amp replace ERN Front stator flange NEN amigos W0430032 P Rear stator flange bearing W0430024 A O Thick Product Dispense valve o rings ZE Plunger 2 W0340022 p Standard Product Plunger 3 eer tube S rings MEN amp clean Condenser if necessary 1 Air cooled units only Refer to the Crathco Parts Price List when ordering the above parts Model 3511 Page 11 Preventative Maintenance Procedure Every 6 to 12 Months
22. ixes with too high a BRIX level will take longer to freeze down and will yield a soft wet frozen product Mixes with too low a BRIX level will have larger ice crystals and will have a tendency to dispense slowly Alcohol content also affects product freezing characteristics High alcohol content may prevent the freezer from serving product at proper thickness Note Always take BRIX measurement using mix that has been thoroughly blended before it is frozen Always allow frozen mix to thaw thoroughly before taking a reading 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 It is normal for output capacity to decrease when warm mix is added or when the freezer is operated in a warm area Freezer Specifications 220V 60Hz 1 Phase Dedicated 20 Amp circuit Drive Motor 1 2 hp Capacitor Start Actual Weight 175 lbs 79 4 kg Refrigerant See Serial Number Plate Refrigerant Charge See Serial Number Plate Approximately 275 350 psi Low Side 35 40 psi Model 3511 Page 3 4 kg Mix Hopper Capacity 5 gallons 18 9 liters Freezing Cylinder Capacity 1 1 2 gallons 5 7 liters INSTALLATION Shipment Transit 1 The freezer has been operated and tested at the factory Upon arrival the complete freezer must be thoroughly checked for any damage which may have occurred in transit N
23. kage Model 3511 Page 9 Figure W Dasher Assembly Figure X Seal Assembly Sanitizing and Refilling 1 Reassemble carburetor by installing the two o rings at the bottom of the carb tube 2 Place the carburetor assembly in the bottom of the hopper 3 Install the o rings on valve plunger and lay plunger assembly on a clean piece of paper towel 4 Prepare a minimum of 2 5 gallons 9 5 liters of sanitizing solution Kay 5 Sanitizer Cleaner or equivalent following the manufacturer s instructions NOTE Add 1 ounce of Kay 5 to 2 5 gallons 9 5 liters of 120 F 50 C water to achieve a concentration of 100 parts per million 5 Dip a medium sized brush into the sanitizing solution and sanitize the inside bore Figure Y Sa itize Valve Body of the dispensing valve Figure Y 6 Place a small amount of lubricant onto a piece of clean paper toweling Use a clean N Mi piece of paper toweling to pick up the small end of the valve plunger assembly 2 3 Apply a thin film of lubricant from the other piece of paper toweling Figure Z EN pons a 7 Slide the valve plunger spring over the small end of the valve plunger and using Se E ze 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 AA 8 Push up on the valve plunger and insert the stainless steel handle Figure BB 9 Holding the handle down slightly so that the hole in the handl
24. leaks e Empty product from the unit Disassemble unit completely as if for cleaning e Clean and sanitize all disassembled parts following the cleaning instructions in the manual e Clean and sanitize hopper freezing cylinder and splash zones on the machine e Check condition of all panels and lids replace if necessary e Check dasher scraper blades for wear if equipped replace once per year minimum e Check dasher for signs of wear replace if necessary Verify alignment when replacing e Check valve body gasket for wear replace once per year minimum e Check valve body knobs used to hold valve body in place replace if necessary e Check condition of shaft seals and stator bearings replace once per year minimum e Inspect drip cup at back end of freezing cylinder for signs of seal leakage e Replace o rings on hopper float where necessary dispense valves and carb tubes lubricate e Lubricate parts where appropriate dispense valve o rings carb tube o rings rubber boot of stationary shaft seal e Re assemble unit and sanitize hopper and freezing cylinder by running CLEAN cycle e Clean and sanitize spinner if equipped e Check operation of merchandiser and mode lights replace light bulbs if necessary e Clean reusable filter if equipped Check condition of filter and replace if necessary e Clean condenser e Inspect the drive shaft and motor shaft bearings for excessive wear drive shaft hole rounding out repla
25. merchandiser enclosure down and out 4 Replace bulb inside 5 Reassemble For ease of assembly put merchandiser in light box before placing metal enclosure back on Model 3511 Page 13 GENERAL TROUBLESHOOTING Freezer problems originate from three sources improper operation mix problems or mechanical malfunction Always check for improper operation and mix problems first as they are the most common cause of most equipment problems Pesas Always disconnect power before attempting any maintenance procedures Only a qualified service technician should perform electrical and mechanical adjustments or repairs PROBLEM PROBABLE CAUSE REMEDY Machine will not run or freeze down e Machine not plugged in e Circuit breaker tripped or fuse blown e Machine in CLEAN or OFF position e Obstructed condenser air flow Air cooled units e Compressor not operating e Dasher not installed e Low refrigerant charge e Plug machine in e Reset breaker or replace fuse e Switch to ON position e Clean condenser Allow 6 15 cm on both sides e Check for cause and correct e Install dasher auger e Check for leaks repair and recharge Product too soft e Consistency setting too loose e Consistency setting at maximum red spring e Product BRIX level too high e Too much alcohol in mix e Readjust consistency control e Change to yellow consistency spring e Lower liquid product BRIX level e Lower alcohol conten
26. of the seal into the ribbed rubber boot with the polished surface facing out forward 4 Lightly lubricate the ribbed rubber boot of the stationary ceramic seal taking care Figure U Re assemble rotary not to get any lubricant on the polished surface and insert it straight back into the half of seal as shown recess at the back of the freezing cylinder RUBBER FIRST See Figure V NOTE The stationary half of the seal must be completely dry before reassembling If the circular half of the seal is white make sure that the grooved side is toward the rubber If the circular half is black be sure the glossy side is facing out 5 Reassemble the dasher assembly as shown in Figure W Insert the larger front and smaller rear white plastic bearings into dasher then slip in the stator rod Attach scraper blades 6 Carefully and slowly guide the dasher into the freezing cylinder taking care N not to damage the seal assembly Turn dasher shaft until it engages the square Figure V Installing the drive coupling Slide the dasher back into the cylinder so that the two smooth stationary half seal sealing surfaces meet See Figure X 7 Inspect and lightly lubricate the large square o ring and refit it into the back of the valve block assembly Install the valve assembly on the front studs and tighten the knobs until they are finger tight Do not use tools to tighten knobs NOTE Failure to lightly lubricate the large o ring can result in product lea
27. ote A Tip N Tell warning device is placed on each shipping carton at the factory If the indicator is red the carton has been tipped in transit See Figure B 2 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 Installing Your Unit 1 Place the self sealing rubber pad shipped with the freezer on a level counter that is stable and strong enough to safely support the freezer s weight 200 Ibs 90 7 kg 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 W0890220 4 4 Legs 2 Make sure freezer is to be placed in a location that is within 6 of a properly grounded circuit and allows adequate space at each side and above for proper air circulation Se Air Cooled Units Only Minimum clearance is 6 15 cm on both sides and 0 at saad S and open above the freezer See Figure C NOTE Failure to allow adequate ventilation will void the warranty and reduce freezer performance NOTE Locating the unit in high ambient temperatures
28. owing the instructions on page 9 The valve plunger spring and retaining pin come in the small parts bag 11 Be sure ON OFF CLEAN switch toggle switch located underneath the electrical box is in the OFF position 12 Connect the power cord directly to a properly grounded DEDICATED 220V 60Hz 15 Amp circuit Do not use an extension cord N Do not alter or deform the plug in any way Altering or deforming the plug may damage unit and will void warranty 13 Remove the drip tray kit from the bubble wrap Separate the parts and remove the protective coating The drip tray is mounted on two screws that are located on the lower front of the freezer cabinet 14 Place the key hole slot of the drip tray support bracket W0471022 on to these screws and tighten the screws 15 Angle the back of the drip tray surround bracket into the drip tray support bracket W0471022 and lower bracket to lock it into place 16 Place drip tray onto drip tray surround bracket 17 Place the louvered drip tray insert into drip tray Model 3511 Page 5 Accessory Installation The Model 3511 has several optional accessories that can be added to the unit in the field to meet your application s needs These EE accessories come with installation instructions EECH BOX e Spinner Spinners are typically used in applications that add i SCH flavoring to a frozen neutral base product after it is dispensed Allows operator to serve a wider variety of
29. rect installation of dasher e Improper drive shaft clearance e Incorrect shaft alignment e Advise careful installation e Adjust to proper e Align shaft Merchandiser light flickers when freezer cycles e Low voltage e Connect freezer to dedicated circuit with proper rating If you still need help call our Service Department at 800 695 4500 Monday through Friday 8am 6pm EST or an authorized service center in your area Please have the model and serial number ready so that accurate information may be given Prior authorization must be obtained from Grindmaster s Technical Services Department for all warranty claims Page 14 Model 3511 b E AQT gt y SSUTI O pue JaGunTd 93BITUGNT ueui isJrJ JeBunTd 03 sBurj o ppy LGt 08v 0M 9 J96UN d 3onpoad MDL GLE Page 15 LI d gerosbom JeBunid usnis BLL OJUT 1J9SUT 91g9TJqn y ueui ejeorJqnr ileJTJ erquessy LL420 90M Sgouyx SATEA OL epis euius ujoouis 2 JO A a epis ybnoy OSPOSPOM pog SATEA 6 Y ssooveom Buty Pen SIBIA 6984 8 O 8Z00 v0M poy J03B3S i OEPOM 821 14b0M puepueis SuTuveg sus PO ETE 9 amp JO3eJnqJe9 exeug 9 aTu100us TEUOTIdO q L 9LOLZVOM yZOOEv0M BuTueeg ueeu ITISBTd s a JOJOJNGJBY PUBPUBIS UL L aperg 1566198 81 9zo0evom Jeusea v P i 1UBOTIQNT JO WTT4 UTUL SPP08vOM A A ori wegen TPUBH SATBA SU 8 Z
30. t Product too stiff e Consistency adjuster set too firm e Product BRIX level too low e Readjust consistency setting or change to red spring e Increase product BRIX level Product will not dispense e Power switch OFF e Inadequate mix in hopper Red MIX LOW light on e Consistency adjuster set too firm e Carburetor inlet hole clogged e Drive belt broken or off pulley e Drive shaft worn e Drive motor failure e Turn power switch ON e Refill hopper e Readjust consistency setting e Unclog carburetor inlet hole e Repair or replace e Inspect square drive shaft pocket for excessive wear replace e Replace motor Leakage from drain tube front of freezer above drip tray e Worn or defective shaft seal e Seal installed incorrectly e Replace seal and then lubricate at each cleaning e Remove and install seal Excessive Dispensing Valve Leaks e Worn or defective o ring s e Replace and lubricate Clicking sound from inside machine e Low voltage e Extension cord is used e Use dedicated circuit with proper rating e Connect directly to power source or use power cord of proper size Thumping sound from inside machine e Worn belt e Replace belt Scraping sound during freeze down e Frozen product scraping off of cylinder walls e No product in machine e Sound should go away when product is frozen to proper consistency e Fill with product Premature seal wear e Incor
31. t the sanitized carburetor assembly into the inlet hole in the hopper 18 Fill mix storage hopper with fresh product Cover hopper with hopper lid 19 Turn front panel switch to ON Allow the freezer to reach proper consistency Figure BB Insert Valve Handle Figure CC Insert Retaining Pin Figure DD Sanitize Hopper Figure EE Lubricate Carb Tube Page 10 Model 3511 Clean In Place Procedure Daily Cleanin This equipment has been approved for a Clean In Place procedure that does not require complete disassembly on a daily basis The unit still requires regular complete disassembly for cleaning and sanitizing To perform the C I P procedure follow the instruction below 1 Empty any product in the machine and turn to OFF 2 Disassemble the dispensing valve assembly following the instructions in Disassembly and Cleaning NOTE Leave the valve block in place Only disassemble the plunger handle spring o rings and pin Remove carburetor assembly from hopper and remove o rings Take all components to the cleaning area Carefully inspect the o rings for cracks chips or cuts and replace if necessary Prepare 1 gallon solution of hot tap water and a good grade of dishwashing detergent Thoroughly wash all parts including handle pin valve plunger spring carburetor assembly and all o rings in detergent solution 8 Use a medium sized brush to clean the bottom of the valve body and the inside of the plunger bore w
32. the o ring upward with a dry paper 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 Carefully inspect the o rings and replace if necessary See Figure Q 3 Remove the dasher assembly from inside the freezing cylinder taking care to avoid damaging the rear seal assembly at the back of the freezing cylinder Disassemble the dasher assembly by removing the scraper blades stator rod and front and rear stator rod bearings Figure Q Ring Removal Page 8 Model 3511 Disassembly and Cleaning cont m 4 Remove stationary half of the shaft seal assembly from the back end of the P freezer cylinder This is accomplished by reaching into the cylinder and pulling seal 2 out with your index finger See Figure R 5 Slide the rotary half of the seal off the dasher shaft Inspect both seal components carefully for nicks or cracks Replace seal if defective NOTE To prevent leakage the surfaces of the rotary seal and the stationary seal must be d n smooth with no chips or cracks k 4 NOTE All units are shipped with a standard ceramic seal Part W0340201 unless Figure R Installing the otherwise specified Certain products contain coconut oil which requires a different sealing Stationary half of seal material For these products use the coconut oil seal Part W0340210 The stationary half of the standard
33. the Remote Fill Control to OFF 3 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 gallons 10 liters of cool water to rinse product out of freezer 4 Remove the carburetor tube and pour water into the storage hopper Allow the water to fill the freezing cylinder 5 Turn the panel switch to CLEAN for 5 minutes 6 Open the dispensing valve and drain the water from the freezer 7 Turn the freezer OFF Disassembly and Cleaning Note For cleaning and sanitizing before initial start up remove carb tube dispense plunger handle and spring from parts bag first 1 Disassemble the dispensing valve assembly Figure M Pull out valve handle retaining pin while supporting the valve plunger from the bottom Figure N Push up on the valve plunger and remove the stainless handle Figure O Slide the valve plunger and spring downward to remove Figure P 2 Remove knobs and carefully remove the front dispensing valve assembly leaving the dasher assembly in the cylinder Remove the o rings from the plunger assembly and back of the dispensing valve body See Figure Q ue MT a ge N Figure M Disassemble Figure N Remove Pin Figure O Remove Handle Dispensing Valve Plunger and Spring NOTE The best way to remove an o ring is to first wipe off all of the lubricant using a clean paper towel Pinch
34. tion Procedure can create a loud noise How to Clean Exposed Filter Air Cooled Unit Onl 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 Air Cooled Unit Onl 1 For concealed filters lift lid and pull up on filter tab to remove 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 filter into top of filter cover with removal clip up and the air flow arrows facing the existing panel How to Adjust Belt M CAUTION Unplug the machine before performing any adjustments This procedure 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 n x 1 2 the motor will need to be raised Follow this procedure to adjust the motor to j xc A achieve proper belt tension See Figure FF N Yar dein m
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