Grindmaster G & MG Series User's Manual
Contents
1. ov FUSE 20A L vy LLR Je N FUSE 10A Cc OPR GMFR COMMON E a m AJ U m Description Description OVERLOAD PROTECTOR LEFT RB RIGHT BOWL CR COMPRESSOR RIGHT PS POWER SWITCH OPR OVERLOAD PROTECTOR RIGHT CONDENSER FAN MOTOR TRANSFORMER IN 120V OUT 12V GEAR MOTOR RIGHT GEAR MOTOR FAN RIGHT MICROSWITCH LEFT CONTROLLER BOARD CONDENSER PROBE COMPRESSOR LEFT EVAPORATOR RIGHT PROBE COMPRESSOR RELAY LEFT STARTING CAPACITOR LEFT G amp MG Series Granita Machine Page 33 GRINDMASTER CORPORATION Grindmaster Coffee Grinders and Brewers e Espressimo Espresso Machines e Crathco Hot Beverage Dispensers Crathco amp Cold and Frozen Beverage Dispensers e American Metal Ware Coffee and Tea Systems Tel 502 425 4776 Fax 502 425 4664 1 800 695 4500 P O Box 35020 Louisville KY 40232 USA www grindmaster com email info grindmaster com2. The Filtr message will appear when the alarm activates a beeping sound every 4 5 seconds To determine the condition that caused the alarm and correct problem see list of conditions below Condition The filter is dirty and needs to be cleaned Corrective Action Clean and replace filter following instructions on page 11 Removing and Cleaning Filter Condition The unit is positioned too close to a wall or other object restricting air flow and causing the machine to run at a higher temperature Corrective Action Reposition unit to maximize ventilation space see page 2 installation figures Condition The filter is not properly installed Corrective Action Properly install filter see Removing and cleaning filter page 11 Condition The unit has been installed near a heat source such as a coffee machine ice maker or cold beverage machine which expels hot air from its vents causing the machine to run at a high temperature Installation near a heat source should be avoided Corrective Action Reposition unit to maximize ventila tion space see page 2 installation figures 8 Series Granita Machine G SERIES MODELS ERROR MESSAGES CONT SYSTEM OVER TEMPERATURE ALARM e system over temperature alarm will activate as a safety when the unit has overheated to protect the compressor The system automatically goes to OFF status where the compressor s operations is stopped while
3. Troubleshooting Guide The following procedures must be performed by a qualified service technician Problem The machine does not cool or cools only partially but the compressors are running The machine does not cool or cools only partially but one or more of the compressors are not running The machine over freezes making the auger movement slow or stopped Possible Cause The space around the machine is inadequate for ventilation Freezer is in defrost The condenser fins are clogged with airborne particles Fan motor is not running Refrigerant is leaking Electrical components of the compressor s are not functioning Some electrical connections are not complete One or more of the compressors are malfunctioning No current is coming to the pressor delay PC board The product brix is too low The screw setting for the product consistency control system is set too far toward the position he limit switch arm is bent away from the gearmotor and prevents contact The level of the product in the bowl is too low exposing the auger The compressor PC board contacts don t open Solution Allow at least 8 20cm between the machine and anything next to it keep away from heat sources Return to freeze mode Remove the side panels Using a brush or compressed air clean the condenser Check the fan motor s electrical connections and if discon
4. 5 i N nS RS WS Page 21 G amp MG Series Granita Machine Exploded View MG23 2B 115 60 serial number 8195 and higher Pree 595 PSE 992 a SS Se aT dE 9 5 89 595 amp Series Granita Machine Page 22 0 220 5 View G235 2B ded Explo 9 _ 651 I ING gt ST li cun pe Lo Pa 7 ta Page 23 chine ies Granita Ma r MG Se G amp Exploded View MG235 2B 220 50 1 22 22 sa 8 1 set 2066 gt OG 7 9 69 996 295 L6 amp Series Granita Machine 220 60 View G236 2B ded Explo Yi il i 11 m S Al d VASES 4 25 hine Series Granita Mac G Se G amp M 60 2B 220 View MG236 2 ded Explo 9 95 1 9Sb A 1 ys TUN M NG it d ee 2 8 4 Srv achine ries Granita M MG Se 4
5. ITEM PART NO NO 2 90000 4 90002 5 90003 6 90004 8 90006 10 90007 12 90008 24 90015 29 90391 30 90021 31 90022 32 90023 38 90027 39 90028 40 90029 41 90030 43 90470 47 90033 48 90034 50 90036 51 90471 60 90043 61 90044 63 90046 74 90048 75 90049 76 90050 77 90051 78 90052 79 90053 80 90054 81 90055 82 90056 83 9005 84 90058 89 90063 90 90064 91 90065 92 90066 94 90068 95 90069 97 90071 98 90072 101 90075 102 90076 103 90077 106 90078 108 90080 109 90081 110 90082 111 90083 112 90084 115 90085 116 90086 125 90102 2 0 90464 2 2 90129 274 90005 277 90465 350 90401 351 90402 352 90403 353 90404 354 90405 355 90406 356 90407 357 90408 358 90409 359 90410 360 90411 361 90412 362 90413 363 90414 Crathco Granita amp MG Series Parts List ITEM PART DESCRIPTION Supporting Foot Washer Nut Bushing for Cord Screw General Switch Function Switch MG Series Lid Light Switch Lid Merchandiser city scene Bottom of Lid Bowl standard Seal for Bowl Drain Tube Nut Screw Hex Head Nut Screw Screw Screw Screw Fuse Holder Fuse 16 Amp 220V Dispensing Valve Upper Body Dispensing Valve Spring Dispensing Valve O ring Thermostat MG Series Gear Motor Consistency Control Spring Bushing Consistency Control Spring Nut Consistency Control Pin Limit Microswitch Screw Nut Bushing Spindle Connection Screw Washer for Front Bushing Evaporator Upper Mixin
6. 1 Turn off theca fig M refrigeration and 5 F fig M freezing switches and empty the bowl of its remaining product after draining the prod uct from the unit you can fill the bowl with hot water not boiling to help melt off any sugar deposits Then drain the water prior to proceeding to step 2 2 Unplug the unit bb 3 Pull out the mixing rod E by pushing it slightly backwards to remove it from its position see fig Q on pg 8 4 Unscrew and remove the two knobs F then lower the bowl to drain out any remaining product through the dispensing valve see fig R 5 Remove and disassemble the dispensing valve Remove the pin G as shown see fig S Then remove the handle B sliding it from its seat Simultaneously apply pressure to the two securing tabs H and lift the dispensing valve C to pull it out of its position see fig T 6 Remove the bowl by unscrewing the two knobs and pulling it downwards as shown in fig U 7 Unscrew the securing bolt M clockwise Pull off the auger N and remove the shaft seal O and the bowl seal P see fig V 8 Remove the drain tray by lifting up on the front edge while lowering the rear edge and then lift it off the unit see fig W 9 Thoroughly wash each part that has been removed in steps 1 8 and the base Q as well as the freezing cylinder R with warm water and mild dish washing detergent R
7. augers will keep working to avoid forming ice blocks e When this occurs an Err message will appear on the touch pad LED readout accompanied by a continu ous buzzer sound to alert the operator of this condition When this alarm activates turn off all switches Then determine the condition See Filter Cleaning Alarm Section for Conditions and Corrective Actions Operating Panel Description MG Series Traditional Rocker Switch Model E FG D 1 ON the main power switch D see figure M 2 Description of the buttons see figure cc Each bowl is controlled by three switches which have the following functions nn obe E activates the mixing parts spiral auger F activates the freezing of the product 222 BE M a activates the refrigeration of the product night defrost setting AT To obtain a slush Select the Af E switch to activate the mixing parts spiral auger and select the F switch to activate the freeze mode Note There is a 4 minute delay before the compressor will start To obtain cold night defrost drinks Select the E switch to activate the mixing parts spiral auger and select the ws switch to activate the refrigeration mode Stand by mode setting Select the AV E switch to activate the mixing parts spiral auger and the gt switch to activate refrigeration mode to keep the product s in bowl s overnight Defrost Timer Operating In
8. filter is dirty and needs to be cleaned The unit is positioned too close to a wall or other object restricting air flow and causing the machine to run at a higher temperature The filter is not properly installed The unit has been installed near a heat source such as a coffee machine ice maker or cold beverage machine which expels hot air from its vents causing the machine to run at a high temperature Installation near a heat source should be avoided Solution Reassemble and replace Clean and lubricate the valve and valve cylinder with the lubricant pro vided with the machine Replace the o rings Find the seal and put it back in place Replace the damaged worn seal and check the condition of the driveshaft Turn auger on Check the contacts and correct the ones that are incomplete Replace the gear motor s Check and correct Check the product brix and correct Replace or Clean and lubricate with the lubricant provided with the machine Check and correct Replace See Changing the lightbulb section in this manual Replace Replace Remove bowl and position properly Clean and replace filter following instructions on page 11 Removing and Cleaning Filter Reposition unit to maximize ventilation space see page 2 installation figures Properly install filler see Removing and cleaning filter page 11 Reposition unit to maximize ventilati
9. is flowing into drain tray through drainage tube The auger and or the upper mixing unit is not turning The auger and or the upper mixing units are creating noises as they rotate There is no light in the merchandising lid or rear merchandising panel The cover does not fit properly on the bowl Filtr or Err message appears on the touchpad LED readout Possible Cause The dispensing valve has been incom pletely or incorrectly replaced in its position The free movement of the dispensing valve is impeded Dispensing valve o rings are damaged The bell shaped shaft seal between the front of the cylinder and the auger hub has not been reinstalled properly The bell shaped shaft seal or the spindle bushing seal is damaged or worn Auger not turned on Some electrical connections are not complete The gear motor s are malfunctioning The large red bowl seal is not in position causing the gear teeth not to mesh The product is incorrect The bell shaped shaft seal has been replaced without lubrication or is dam aged he auger has been incompletely or incorrectly reassembled ie the auger s gear pins are not properly seated light bulb is burnt out The 5 Amp fuse between the trans former and the lamp is blown The transformer is blown The bowl is incorrectly positioned the lower outside corner is not over the lower outside base piece The
10. with Plug 220V Transformer IN 230 OUT 12 Compressor 220 50 Compressor Electrical Parts 220 50 Condensor Fan Motor 220V Impeller 220 50 Gear Motor Fan 220V Compressor 220 60 Compressor Electrical Parts 220 60 Seal Replacement Kit Brush 1 4 Ceaning Brush Valve 1 Cleaning Shaft Replacement Kit Food Grade Lubricant Bowl 2 gallon Complete bowl cover G amp MG Series Instruction Manual G amp MG Series Care amp Cleaning Inst Lam Card Control Box Cover Assy Blk Complete Dispensing Valve Black 9 Itr Max Bowl Label G amp MG Series Granita Machine Page 27 GEAR MOTOR EXPLODED VIEW e a tows Tm LA HE WAT NN WE Bt NINS Li E 4 wat P P P P 4 E m vay Ga g 004 memi Description PartNo TWO BEARINGSI 901 iE 4 JAR 6e DRIVE GEAR WITH BEARING 90765 7 IDLER GEAR WITH BEARING 90166 90167 Page 28 G amp MG Series Granita Machine REFRIGERATION DIAGRAM MODEL G SERIES 115V 220V CIL DL C SCFM ltem Description CAPILLARY TUBE LEFT EVAPORATOR LEFT ACCUMULATOR LEFT COMPRESSOR RIGHT DRIVER RIGHT CAPILLARY TUBE RIGHT EVAPORATOR RIGHT ACCUMULATOR RIGHT CONDENSER AND CONDENSER FAN MOTO mm SCFM ltem Description 4 COMPRESSOR LEFT CUT OUT L
11. 5 90476 90477 90478 90479 90480 90481 90482 90104 90106 90107 90110 90112 90177 90178 90381 90386 90468 90469 90483 DESCRIPTION Black Merchandiser Cover Incandescent Light Bulb BP1156CL Incandescent Light Socket Center Screw Lid Plug Front Screw Lid Plug Rear Screw Lid Plug Wiring for Black Lid w Cord Black Cover For Light Bulb Black Evaporator Support Black Cover for Evaporator Support Wiring PC Control Board G Series Black Knob to Secure Bowl Control Board Mounting Plate PC Control Board Electronic Filter Inlet Air Black Top Tray Screw Back Lit Merchandiser Panel Bracket Knob Rear Panel O ring Knob Rear Panel SS Back Panel Painted Frame Stainless Steel Right Side Panel Screw Screw Foot Main Fuse 20A 5A Fuse Screw 5A Fuse Holder Auger Granita One Piece Bulb Insulator Rear Merchandiser Screw Single Pc Rear Merchandiser Back Lit Merchandiser Support Single Pc Bulb Bracket Rear Merchandiser Back Lit Cover Single Pc Screw Thermister G Series Fan Motor Cover Condenser Condenser Fan Motor Bracket Screw Compressor Mouting Plate Control Box Cover Black Screw Control Board Cover Lock Control Board Cover Key Complete Wiring MG Series Timer Defrost MG Series Back lit Merchandiser Panel Bracket Dual Pc Rear Merchandiser City Scene Single Pc Rear Merchandiser Graphic City Scene Dual Pc Transparent Surface Dual Pc Rear Merchandiser Cord
12. A The lid cover will not fit properly if this is not cor K rectly positioned Secure the bowl L by keeping it lifted until the bolt M is aligned with its hole S then tightly screw on the knobs F without exerting excessive pressure to Figure AA avoid cracking the bowl see fig BB Heassemble the mixing rod O so that its gears are aligned with the lower gear ring This will allow the front pin to fit perfectly in its position on the bowl see fig CC Reassemble in sequence the parts of the dispensing valve as follows see fig DD Make sure that the dispensing valve seat is properly lubricated with food grade lubricant Such as Haynes Lubrifilm Put the dispensing valve body T in its seat Insert the spring U Put the dispensing valve upper body V into its position until it completely snaps into place Reassemble the handle B and insert retaining pin G following the same procedures 5 fig S Reinstall the drain tray fig Make sure that the condensation drainage tube J is reinserted into its correct fixed position allowing it to drain into the tray a Figure DD amp Series Granita Machine Cleaning and Sanitizing Procedures con t 16 Plug the unit back into appropriate power supply 17 After the cleaning and reassembly of the mixing parts and bowl as per above instructions fill the bowl wit
13. Crathco Visual Granita Machine Operation and Instruction Manual for G amp MG Series Models TABLE OF 5 Introduction and Warnings Installation Connection To Power Supply Preparing Product Operating Panel Programming G Series Electronic Touchpad Model Errors G Series Electronic Touchpad Model 6 7 Operating Panel Description MG Series Traditional Rocker Switch Model Dispensing Product Adjustments Cleaning amp Sanitizing Maintenance Crathco Granita Preventive Maintenance Checklist Accessories Troubleshooting Exploded View Crathco Granita G amp MG Series Parts List Gear Motor Exploded View Refrigeration Diagrams Electrical Diagrams Prior authorization must be obtained Models G23 2B G235 2B G236 2B from Grindmaster Corporation MG23 2B MG235 2B amp MG236 2B for all warranty claims Grindmaster Corporation Canton Plant 480 Neponset St Canton MA 02021 USA Phone 502 425 4776 800 695 4500 Fax 502 425 4664 www grindmaster com Frozen Beverage Dispensers Formerly Wilch Grindmaster Corporation 2000 1103 Form CC 399 04 PRINTED IN THE USA Part 90381 Introduction and Warnings This instruction manual is an important part of this Granita machine and must be kept for future reference Carefully read the warnings contained in this instruction manual before installing and operating this Granita machine Instructions For Machine Transport NOTE Ref
14. EFT DRIER LEFT CAPILLARY TUBE LEFT EVAPORATOR LEFT ACCUMULATOR LEFT COMPRESSOR RIGHT CUT OUT RIGHT DR DRIVER RIGHT CAPILLARY TUBE RIGHT EVAPORATOR RIGHT AR ACCUMULATOR RIGHT CONDENSER AND CONDENSER FAN MOTO G amp MG Series Granita Machine Page 29 REFRIGERATION DIAGRAM MODEL MG SERIES 220V CTL ODL DR DRIVERRIGHT 30 G amp MG Series Granita Machine ELECTRICAL DIAGRAM MODEL MG SERIES 115 N RB FUSE 20 L FUSE z 1201218191415 gt gt T08 MSL MSR 1 5 ul 1 Wem Description tem Description RB RIGHT BOWL CL COMPRESSORLEFT 002 PS DT MASL MIXING AUGER SWITCH LEFT RR COMPRESSOR RELAY RIGHT FSL RSL REFRIGERATING SWITCH LEFT OPR OVERLOAD PROTECTOR RIGHT MICROSWITCH RIGHT TIME DELAY BOARD BACK LAMP LEFT BACK LAMP RIGHT amp Series Granita Machine ELECTRICAL DIAGRAM MODEL MG SERIES 220V Wem Description Wem Description RB RIGHT BOWL SCL STARTING CAPACITOR LEFT COMPRESSOR RIGHT MASL MIXING AUGER SWITCH LEFT RR COMPRESSORRELAYRIGHT REFRIGERATING SWITCH LEFT OVERLOAD PROTECTOR RIGHT TRANSFORMER CL COMPRESSOR ET Page 32 G amp MG Series Granita Machine ELECTRICAL DIAGRAM MODEL G SERIES 115V 220V
15. TE Some units may have dual rear back lit merchandiser panels these function in the same manner as the single panel rear merchandisers Pull out each pin attached to each tag see fig D Replace rear back lit merchandiser panel see fig E 8 B ez 777 amp Ee EE 222 uM Tt T zer mE SS 12222 55 2 22 SSS SS 222222 SLE 2222 Cj SS Su pee 9 Figure C Figure D Figure E Page 2 G amp MG Series Granita Machine Installation cont 4 Installing the Top Lid Merchandiser requires Phillips head screwdriver Unplug the cord to the lid and remove the lid from the machine On top of the cover remove the 4 hole plugs over the front 2 screws middle near rocker switch and back screws then remove these 4 screws with a Phillips head screwdriver Remove the black top part of the cover from the clear plastic base see fig E Slide the merchandiser header around the outside edge of the lid s clear plastic base Position bottom edge of header in grooved area see fig F Heassemble the black top cover onto the clear plastic base The top edge of header should slide into black top cover grooved area see fig F Replace screws Replace hole plugs the angled plugs goes in the rear hole and the two large plugs go in the two front holes and the smal
16. e appropriate minutes are set 5 To save your settings press the Press To Select Function button one more time Setting Defrost Timer Night Setting 1 Turn power switch ON 2 Then press Auger ON OFF button on for the side you are setting 3 Then press and hold the Press To Select Function button until you hear a long beep and the LED cold and the Auto Timer clock light begins to blink 4 Press the Auto Timer clock button to set the hour you want it to turn to refrigeration mode and then press the Press To Select Function button to save the setting G amp MG Series Granita Machine Page 5 Setting Defrost Timer Night Setting cont 5 Then press the Auto Timer clock button to set the minutes to complete time setting that you want it to turn to refrigeration mode defrost mode Then press the Press To Select Function button to save the setting 6 Proceed to setting the time you want the machine to turn to freezing mode by following steps 4 and above Then press the Press To Select Function button to save the time settings for freeze mode Freeze light should be blinking Note Once the settings have been saved the unit will save the settings even when the power switch is turned OFF When the light on the Auto Timer clock button is on the defrost timer is activated To turn OFF the defrost timer press the Auto Timer clock button s until the light s on the clock button s t
17. e performed every 6 months In addition air filter should be cleaned weekly and every three months the condenser should be cleaned and the rubber shaped bell shaft seals should be replaced Failure to complete PM s every 6 months is considered abuse of the machine and therefore voids the warranty Proof of PM must be documented with Grindmaster Corporation to maintain warranty coverage To docu ment your PM complete this form with signatures place used worn parts that were replaced during the PM inside envelope and mail to Grindmaster Corporation Parts returned should include 2 evaporator seals 2 rubber bell shaped shaft seals valve o rings and shafts if applicable First PM on serial numbers 11259 to 12202 should also include kit number 90225 one per serial number The following procedures should be performed during a Preventative Maintenance visit using PM kit 90566 or 90110B Document model and serial number of equipment and record above 1 Check product temperature and consistency for proper setting adjust if necessary Insure product is being mixed properly and is within specification check and document most products should be around 13 refer to product manufacturer s recommendations for exact recommended brix Record Brix reading here Left Bowl Right Bowl Check for leaks at gaskets o rings front shaft seal etc Empty product from bowls and disassemble unit completely Clean and sanitize all disassembl
18. ed parts Clean and sanitize top tray and freezing barrel Clean out condensation tube with sanitizer and long brush Check condition of all panels bowls lids replace if necessary Check mixing rods and augers for wear check mixing rod bearing for wear replace if necessary Check for bowl knobs two per bowl to lock down bowl in front replace if necessary Check operation of lights in lid and rear of unit if equipped replace light bulbs if necessary Clean re usable air filter Check condition of filter and replace if necessary Clean condenser Check condition of bowl gaskets and replace if necessary Replace all o rings on dispense valves and lubricate Check drive shaft Replace if necessary using PM kit 90110B in place of 90566 above Replace evaporator seal in front of evaporator use brass tool included to slide seal onto shaft and use the white tool to tap seal into place Be sure to lubricate seal with food grade grease first Replace bell shaped rubber shaft seal on front of freezing barrel generously lubricate inside seal Lubricate parts where appropriate dispense valve o rings inside of shaft seal inner rim of bowl where it meets with the bowl seal Re assemble unit and refill with product Verify and document defrost timer setting and operation and time of day setting and adjust if necessary Check thermostat setting on MG models Thermostat setting should be between 1 1 2 and 2 Verify compressor operat
19. g Unit Shaft Seal Rubber Bell Shaped Securing Nut for Auger Spindle Bushing Drive Shaft Screw Hose Clamp O ring Washer for Rear Bushing Accumalator Compressor 115 60 Compressor Electrical Parts 115 60 Condenser Fan Motor 115 60 Impeller GOHz Control Box Timer MG Series Gear Motor Fan 115 60 Screw Lid Socket Filter Drier High Pressure Cutout Switch Cord with Plug AWG14 20A Filter drier dual connection Dispensing Valve Handle Black Handle Securing Pin Black Dispensing Valve Lower Body Screw Nut M5 DIN 934 Transformer IN 115V out 12 G amp MG Washer 5X15X1 5 Drip Tray Grid Black Black Drip Tray Black Lower Trim Stainless Steel Lower Front Panel Stainless Steel Upper Front Panel Stainless Steel Left Side Panel Black Upper Trim NO 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 446 306 447 448 449 450 451 452 453 454 455 456 457 NO 90415 90142 90141 90418 90419 90420 90421 90422 90423 90424 90425 90426 90427 90428 90429 90430 90431 90432 90433 90434 90435 90436 90437 90438 90439 90337 90441 90442 90443 90444 90445 90446 90447 90448 90449 90450 90451 90452 90453 90454 90455 90456 90457 90458 90459 90460 90395 90132 90472 90392 90397 90473 90474 9047
20. h a mix of water and an approved cleaning solution example kay5 according to the measures specified 18 Start the mixing part of the machine for about 10 minutes to sanitize all parts Follow the cleaning solution specifications 19 Drain the cleaning solution as follows Unscrew the two knobs F see fig U then lower the bowl to drain out any remaining product through the dispensing valve C as shown in fig U 20 Screw again the knobs F to fix the bowls 21 With a clean cloth wash the underside of the lamp cover with warm water and a mild detergent Allow this part to air dry and then wipe it with a clean cloth which has been dipped in the sanitizing mixture Prepare a minimum of 4 gallons 15 liters of sanitizing solution Stera Green Label or equivalent following the manufacturer s instructions Note Add 4 ounces of Stera Sheen to 4 gallons 15 liters of 120 Fahrenheit 50 Centigrade water to achieve a concentrate of 100 parts per million Warning Lamp cover must be unplugged Electric shock could occur if cover or power cord come in contact with solution Maintenance Warning Disconnect the unit from its power supply prior to performing any maintenance procedures Failure to do so could result in electric shock injury from hazardous moving parts or serious burns from hot surfaces Removing and cleaning the filter Weekl This should be done weekly or more often if necessa
21. inse well with clear water and allow to air dry see fig X Avoid the use of abrasive cleaners which can damage the finish Do not put in dishwasher Dishwasher may damage some parts such as the clear plastic auger gears and top mixing bar Reassemble with clean hands Figure X G amp MG Series Granita Machine 9 Cleaning and Sanitizing Procedures con t 10 11 11 12 13 14 15 N Reassemble the mixing unit back together according to the following procedures see fig Y e Moisten the bowl seal P with water and slip it into place at the back of cylin der with ribs angled toward back of freezer Apply food grade lubricant to the inside of the shaft seal and put the shaft Figure Y seal O back on with the flared end of seal toward back of freezer e Put the auger assembly back on the evaporator e Secure all the parts in place by screwing on the bolt M counterclockwise Reassemble the bowl L positioning it into place Make sure that bowl fits tightly to the bowl seal see fig Z We also suggest that the rear part of the bowl be moistened with water or lightly lubricated at the point where it fits together with the seal to make it easier to install bowl Bowl outside corner must be over the white plastic edge 4 f 4 The lower right and left bowl flanges should fit on the outside of each black tri Lif angle edge see fig A
22. ion and freezer controller operation Verify ventilation is adequate 8 on both sides and back Check electrical connections and wiring Check fan operation 1 condenser fan and 2 gear motor fans and clean fan or blades if necessary Review proper periodic care and cleaning instructions disassembly cleaning sanitizing lubrication and re assembly with store personnel Review proper product mixing and handling instructions with store personnel Demonstrate and train store personnel to follow proper procedures stress importance of store level maintenance such as lubrication and filter cleaning 1 Make sure store personnel have appropriate supplies lubricant and sanitizer to care for machine G amp Series Granita Machine Crathco Granita Preventive Model Maintenance PM Checklist for Kit 90104 PM by Serial 11258 and below Of Company If unit has been converted to unhardened Store Name stainless shaft system then use kit 90566 Address instead Store Mgr Name Signature A preventive maintenance visit should be performed every 3 months Failure to complete PM s every 3 months is considered abuse of the machine and therefore voids the war ranty Proof of PM must be documented with Grindmaster Corporation to maintain warranty coverage To document your PM complete this form with signatures place used worn parts that were replaced duri
23. l plug goes in the center hole by the rocker switches Replace assembled lid on machine and reattach cord 5 Installing the Rear Back lit Merchandiser To remove any existing artwork bend or pinch the middle of the back lit merchandiser and pull it from the rear merchandising display casing see fig G To insert new art slide the left corner edges into the left top and bottom casing edges see fig H Slightly bend art and insert the right side of art into the right top and bottom casing edges see fig H Smooth out art until all edges are properly inserted into the casing Figure H Connection To Main Power Supply N Attention Before inserting the plug into the electrical outlet carefully read the following precautions he electrical safety of this Granita machine can only be achieved if the machine is properly connected to an appropriate grounded electrical receptacle that is in compliance with current national safety stan dards Therefore the manufacturer cannot be held responsible for damage and or injury caused by fail ure to connect the unit to an appropriate source of power For a safe and correct installation connect the unit to a dedicated outlet Do not alter the cord or plug in any way AN Attention Altering the cord or plug will void the warranty he entire length of the power supply cord must not in any way be compressed bent or bunched together no
24. nance such as lubrication and filter cleaning 1 Make sure store personnel have appropriate supplies lubricant and sanitizer to care for machine OOOO 8 Series Granita Machine Accessories not included Security Kit Installation Part 3468 Installing Locking Clip HOLE FOR PADLOCK 1 Pinhead must be located on righthand side of valve as shown 2 The 0 125 slot on the locking clip lines up with the horizontal shelf on the valve body 3 Insert the locking clips as shown LOCKING CLIP IN 4 Attach padlock in hole provided on the locking clip Figure PP Installing Security Straps 1 Hook straps under side edge of the bowl beginning at the front of the bowl 2 Slide the straps back on the bowl until the are firmly in place 3 Interlock straps above the bowl lid GRANITA BOWL 4 Attach the padlock SECURITY STRAP Figure QQ Autofills Attach liquid autofill systems to your granita dispenser Autofills minimize manual labor to mix and refill the unit as well as maintain the product bowl at an attractive level Product Filling System Product Delivery System BIB Product Figure RR Contact your local Grindmaster Corporation representative or Grindmaster Corporation customer service at 800 695 4500 for more information on any of the above accessories amp Series Granita Machine
25. ne back on remove the layer of superficial ice to prevent damage to the mixing auger Adjustments Figure O Attention To prevent the product from becoming too thick it is necessary to push left Press To Select Function and right Press To Select Function keys to cold drink position or to refill the bowl when the level of the granita inside the bowl is below the minimum fill line Consistency Adjustment 1 Unplug the machine 2 Be sure that product in bowl is within proper fill range Above the minimum fill line 3 Remove merchandiser 4 Change the thickness of the product by turning the screw D on the back of the bowl as shown on fig P Turn the screw clockwise for thinner product or counterclockwise for thicker product The indicator gauge D1 located on the back of the bowl shows the degree of adjustment thicker thinner Note This D1 is an indicator gauge only To adjust consistency turn screw on top D Page 8 G amp MG Series Granita Machine Cleaning and Sanitizing Procedures N Warning Disconnect the unit from its power supply prior to cleaning or sanitizing the unit Failure to do so may result in electric shock Daily Cleaning For the machine to function properly it is important that the cleaning procedures be carried out daily according to the following instructions Figure R T
26. nected reconnect If still not operating replace the motor Locate the leak eliminate it and recharge the system Replace the malfunctioning components Check the contacts and correct those that are incomplete Replace the compressor s Check the electrical connections to the PC board as well as the transformer feeding the PC board and correct Check the product brix and correct Reset the screw toward the position to produce a thinner consistency product Using pliers straighten the limit switch arm Add more product or turn the refrigeration Off Replace the PC board The machine is noisy The fan motor blades are hitting Check and correct internal components The main power switch is The unit is not running Product is leaking out of the bowl The fuse s are blown The pressure cutout switch has activated e Some electrical connections are not complete main power is not functioning One of the bowl seals is not in place Replace the fuse s Clean the condenser or add ventilation space around the machine the cutout switch reset is automatic when the conditions are corrected Check the contacts and correct those that are incomplete Replace the switch Replace or reposition the seals G amp MG Series Granita Machine Page 17 Troubleshooting Guide cont d Problem Product is leaking from the dispensing valve Product
27. new one in the evaporator cylinder The gasket black side should be facing the inside of the evaporator Figure NN 7 Position the inserting pipe so that it s smaller diameter touches the spindle bushing seal 8 Push the spindle bushing seal in by tapping on the pipe with a rubber mallet Be sure the spindle bushing seal is completely in place See Figure OO 9 Reassemble bowl Figure OO When replacing the spindle bushing be sure to check the condition of the driveshaft If the surface is not smooth and the driveshaft is not secure then replace the driveshaft while replacing the spindle bush ing Replacement of a driveshaft should only be done by a qualified service technician using PM kit 90110 Bowl Gasket located at rear of bowl Replace as necessary depending on the conditions of use and level of maintenance This part should be lubricated during re assembly after every cleaning O Ring Maintenance O rings should be replaced every 6 to 12 months or as necessary where wear is apparent G amp MG Series Granita Machine Page 13 Crathco Granita Preventive Model Maintenance PM A Checklist for Kit 90566 PM by Serial 11259 and above Of Company and units with lower serial 5 that have been store Name converted to stainless steel shafts units with Address black stainless shafts will need to be converted using PM Kit 90110B Store Mgr Name oignature A preventive maintenance visit should b
28. ng Spindle Bushing Seal Replace every 6 to 12 months depending on conditions of use and level of maintenance Replacement of spindle bushing should ONLY be done by a qualified service technician To Replace Spindle Bushing Tools required Power screwdriver Rubber mallet Replacement Kit 490104 spindle bushing extraction tool 90544 Each kit 90104 contains 2 bell shaped shaft seals 2 spindle bushing seals 4 dispense valve o rings 1 lami nated care and cleaning card and one PM checklist Empty product bowl and disassemble as if for cleaning Spindle bushing seals should be replaced every 6 12 months and bell shaped shaft seals should be replaced once every 1 6 months depending on conditions of use and maintenance 2 Slide the threaded metal cylinder on the drive shaft so that the flat surface meets the face of the evaporator cylinder Thread the two tapping screws max length 1 1 8 through the holes in the tool and into the spindle bushing seal Use of a power screwdriver is suggested See Figure MM 4 Screw the outer cylinder of the extracting tool on to the metal cylinder by rotating clockwise until it is fully connected 5 Continue turning the outer cylinder clockwise until the spindle bushing seal is removed If necessary apply higher torque by inserting a screwdriver in the holes of the outer 18 cylinder See Figure NN 6 After extracting the old spindle bushing seal position a
29. ng the PM inside enve lope and mail to Grindmaster Corporation Parts returned should include 2 spindle bushing evaporator seals 2 rub ber bell shaped shaft seals valve o rings and shafts if applicable The following procedures should be performed during a Preventative Maintenance visit using PM kit 90104 Document model and serial number of equipment and record above 1 Check product temperature and consistency for proper setting adjust if necessary Insure product is being mixed properly and is within specification check and document most products should be around 13 refer to product manufacturer s recommendations for exact recommended brix Record Brix reading here Left Bowl Right Bowl Check for leaks at gaskets o rings front shaft seal etc Empty product from bowls Disassemble unit completely Clean and sanitize all disassembled parts Clean and sanitize top tray and freezing barrel Clean out condensation tube with sanitizer and long brush Check condition of all panels bowls lids replace if necessary Check mixing rods and augers for wear check mixing rod bearing for wear replace if necessary Check for bowl knobs two per bowl to lock down bowl in front replace if necessary Check operation of lights in lid and rear of unit if equipped replace light bulbs if necessary Clean re usable air filter if so equipped standard on G amp MG models optional on ID models Check condition
30. of filler and replace if necessary Clean condenser Check condition of bowl gasket and replace if necessary Replace all o rings on dispense valves and lubricate Check drive shaft If surface is not smooth or the drive shaft is not secure excessive movement in and out use PM kit 90110 or 90110B in place of 90104 above Replace spindle bushing seal in front of evaporator using extraction tool Replace bell shaped rubber shaft seal on front of freezing barrel generously lubricate inside seal Lubricate parts where appropriate dispense valve o rings inside of shaft seal inner rim of bowl where it meets with the bowl seal Re assemble unit and refill with product Verify and document defrost timer setting and operation and time of day setting and adjust if necessary Check thermostat setting on ID and MG models Thermostat setting should be between 1 1 2 and 2 Verify compressor operation and freezer controller operation Verify ventilation is adequate 8 on both sides and back Check electrical connections and wiring Check fan operation 1 condenser fan and 2 gear motor fans and clean fan or blades if necessary Review proper periodic care and cleaning instructions disassembly cleaning sanitizing lubrication and re assembly with store personnel Review proper product mixing and handling instructions with store personnel Demonstrate and train store personnel to follow proper procedures stress importance of store level mainte
31. on space see page 2 installation figures If you still need help call our service department at 800 568 5715 Ext 3 Monday through Friday 8 am 6 pm EST or an authorized service center in your area Please have the model and serial numbers ready so that accurate infor mation may be given Prior authorization must be obtained from Grindmaster Corporation s Technical Services Department for all warranty claims amp Series Granita Machine 2B 115 60 for units up to serial number 8195 Exploded View MG23 GOP ika 6 4 a ut or a 55 P 5 0 c KS E EE Exploded View G23 2B 115 60 for units up to serial number 8195 ON 72 sif rcrum in a a a a a ee ee DU 0700 PUN a 1 L Wool o NNNM 7964 EXE 44 4 iias ORY Le We 4 iw WW Page 20 G amp MG Series Granita Machine Exploded View G23 2B 115 60 serial number 8195 and higher 02 il ES Lp v s an 011 52 NP
32. r may extension cords be used e Do not obstruct the ventilation and heat dispersion grill vents the side and rear panels of the unit An insufficient ventilation process may reduce the efficiency of the machine causing it to function inade quately and cause serious damage to the machine A minimum of eight inches 20cm clearance is necessary on each side and behind the unit G amp MG Series Granita Machine Page 3 Preparing Product N Attention Make sure that the mixture has a 1396 minimum Brix sugar content A lower concentrate could seriously damage the mixing parts as well as the gear motors NEVER USE ONLY WATER 1 If using product concentrate instead of ready to use product dilute and mix the prod uct with water according to the directions given by the manufacturer in a separate lt lt container see fig Never pour dry powder crystals or concentrate into a dry 7 bowl ie 2 Slide the merchandising lid either forward or toward the back of the bowl until the stops reach the edge of the bowl It is not necessary to remove the merchandis ing cover When sliding lid back make sure that no droplets of water come off lid Pour the prepared product into the bowl see fig J Do not spill any material on lid or on bowl There is a minimum and maximum fill line on the bowl Do not overfill or run the unit without enough product Running unit with product below the minimum full line may ca
33. rigeration equipment must remain upright to avoid damage to the compressor In order to prevent the oil contained in the compressor from flowing into the cooling circuit it is necessary to always ship carry store and handle this Granita machine in an upright position following the instructions located on the packaging Never ship carry store or handle unit on its side Installation 1 Cut banding straps from box and lift the box off the machine see fig A 2 Positioning the machine The machine must be well ventilated Leave an 8 20 cm clearance on the sides and back of the machine to allow proper ventilation Installation of the machine near a heat source should be avoided Some heat sources you should avoid locating this unit too close to are ovens coffee machines cold or frozen beverage dispensers or ice machines equipment with compressors that expel hot air through its vents Machines should also not be positioned near dust pro ducing units such as a Powdered Cappuccino or Cocoa dispenser room tem perature between 59 F 15 C and 77 F 25 C is recommended see fig B The lit merchandising covers are reversible front to back depending upon the needs of the operator see fig B 3 Remove Shipping Pin N Attention Shipping pin attached to tag located behind Figure B each bowl must be removed before starting machines e Lift up and remove rear back lit merchandiser panel see fig C NO
34. rotate the quarter to pop the panel open see fig Holding the merchandising cover with the top open carefully remove the lightbulb see fig JJ Insert the new bulb and replace the light cover Place lid on machine and plug lid cord back into lid Rear Merchandiser Lights In order to access the lightbulb from the rear back lit merchandiser remove the rear merchandiser by sliding it upwards see fig KK Y 11 18 11 i m WN NOTE Some units may have dual rear backlit merchandiser panels these function in the same manner as the single panel rear merchandisers md Then remove the lightbulb s BA see fig LL Insert the new bulb s BA 2 ji m NY Q e Reassemble the rear back lit merchandiser AA making sure that its slots are inserted properly in the relevant brackets CA see fig LL e Plug machine into dedicated outlet M NAE 7 1 NY J NEL LLL A dii NN NW NN AN Figure LL amp MG Series Granita Machine Maintenance con t Seal Maintenance Bell Shaped Seal Replace every 1 to 6 months depending on conditions of use and level of maintenance and lubrication This part should be lubricated during re assembly after every cleani
35. ry In order to guarantee an efficient refrigerating system it is essential that the filter be properly cleaned according to the following procedures 1 Unplug the machine 2 Unscrew the knob K in order to remove back panel see fig FF 3 Remove the filter W held inside the back panel X and clean it properly using water or vacuum see fig GG 4 Place the cleaned filter back inside back panel and reinstall the back panel on the machine by screwing in the knob K Figure GG N Attention Failure to maintain a clean filter and condenser will cause damage to the unit not covered by warranty G amp MG Series Granita Machine Page 11 Maintenance con t Cleaning the Condenser Monthly This cleaning should be done monthly or more often if necessary In order to guarantee an efficient refrigerating system it is essential that the condenser be properly cleaned at regular intervals according to the following procedures Unplug the machine Figure HH Remove the back panel and filter Using a dry brush or vacuum remove the dust that has accumulated between the fins of the condenser see fig HH Replacing the Lightbulbs As Needed Unplug the machine Lid Lights Unplug the cord to the lid and remove the lid from the machine n order to access the lightbulb in the merchandising cover insert a quarter in the slot on the small panel on the top of the cover DA and
36. structions 1 SETTING CURRENT TIME Rotate the program disc in the direction of the arrows to align the correct time of day with the time of day mark Figure H shows the timesetting of 7 00 DEFRDST 2 SETTING DEFROST MODE Set the defrost period by pushing the switch actuator toward the outer edge of the program disc Freeze time is set by pushing the Figure N switch actuators toward the center of the time switch Figure N shows a defrost time from 11 00 to 6 15 The light and dark shaded areas of the program disc indicate day and night respectively Each actuator is equivalent to 15 minutes 3 All switches power auger refrigeration and freeze must be on for defrost timer to properly function NOTE The timer is battery backed Do not remove power from the unit for greater than 2 weeks as doing so will result in failure of the battery back up feature The battery is nickel cadmium and will last from 6 to 8 years if properly charged The battery is not replaceable upon failure amp Series Granita Machine Dispensing Product To dispense the product position the cup under the dispensing valve C and lower the dispensing lever B see fig O N Attention If the machine is turned off at night with the bowls filled or just partially filled a layer of solid ice may form on the surface due to the natural separation of the unmixed non moving product In this case before turning the machi
37. the Mode Press To Select Function button to select manual OFF FREEZE or COOLING functions Mode Press To Select Function Button 1 Used to manually select OFF FREEZE or COOLING functions when auger is turned ON Accesses defrost timer reset mode when depressed for an extended period when auger is turned ON Locks in hours minutes and final time settings after they are reset using the Auto Timer button Does not function when light on Auto Timer button is illuminated Auto Timer button 1 Turns auto defrost mode ON or OFF light on switch indicates when auto defrost mode is activated 2 Used to adjust the hours and minutes settings when readjusting current time or auto defrost timer Enter Time Programming on Initial Installation or in the Event of a Time Change 1 Turn OFF power switch 2 While pressing left Press To Select Function button turn ON power switch while continuing to hold the Press To Select Function button until the display illuminates hour digits will start to blink 3 First set hour by pressing the Auto Timer clock button until the appropriate hour is shown note when using a 12 hour clock the time is P M when the dot at the bottom right corner of the LED is lit when dot is not lit it is A M 4 To set the minutes press the left Press To Select Function button then press the Auto Timer clock button until th
38. urns off Operate in Automatic Mode with Defrost Timer Activated Turn power switch ON and wait for LED to light up Press auger button ON for the side you are setting To operate in defrost mode press the Auto Timer button until it is illuminated When setting automatic times please keep in mind it will take time for the frozen product to become liquid or vice versa Operate in Manual Mode without Defrost Timer Activated 1 Turn power switch ON and wait for LED to light up 2 Make sure clock button is OFF LED light on clock button should not be lit up 3 First turn auger on by pressing Auger ON OFF button until it beeps Note The auger must be on before unit will allow the cooling or freezing mode to activate 4 Then select refrigeration or freezing mode by pressing the Press To Select Function button until the light under the selection you desire is lit up Note In the cooling mode the LED will read the actual temperature of the product The temperature setting is preset to NSF standards and is not adjustable In the freezing mode the LED will read the current time G SERIES MODELS ERROR MESSAGES 1 FILTER CLEANING ALARM A filter cleaning alarm will activate when the unit is running hot due to insufficient internal air circulation When this occurs Filtr message will appear on the touchpad LED readout and an intermittent audible tone will also sound to alert the operator of this condition
39. use damage to the unit Lodi 3 Insert the plug into a dedicated electrical outlet Operating Panel In order to access the operating panel lower the cover A as shown Figure K in figure K To lower the cover use a coin or other object to turn the keyless lock to the horizontal position Operating Panel Electronic Touchpad LED COLD COLD Auger ON OFF AUGER ON OFF FROZEN FROZEN Press To Select PRESS TO SELECT Function OFF OFF 1 AUGER AUGER ON OFF LEFT BOWL 00000 OPERATIONS RIGHT BOWL ON OFF OPERATIONS 0000 press SELECT OFF FROZEN COLD FUNCTION BEP EP HO PRESS TO COLD FROZEN OFF SELECT 3 E FUNCTION AUTO TIMER OFF e DISPLAY AUTO TIMER AUTO TIMER PM Figure L Programming G Series Electronic Touchpad Models Models G23 2B G235 2B amp G236 2B Electronic Touchpad Main Power Switch 1 Turns unit ON 2 Selects 12 24 time or FP CP temperature display when turned ON while simultaneously depressing the auger button 3 Sets current time when turned ON while simultaneously depressing the Mode Press To Select Function button 8 Series Granita Machine Model G23 2B Electronic Touchpad cont Auger ON OFF Button 1 Turns auger ON and OFF when main power switch is ON 2 Must be ON to permit defrost time to be reset 3 Must be ON to activate
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