Grindmaster Crathco G23-2B Operation And Instruction Manual Download Page 1

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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

1103 Form# CC-399-04

Part# 90381

Crathco

Visual Granita Machine

Operation and Instruction Manual

for

G & MG Series Models

Prior authorization must be obtained
from Grindmaster Corporation
for all warranty claims.

Models G23-2B, G235-2B, G236-2B,

MG23-2B, MG235-2B & MG236-2B

TABLE OF CONTENTS

Introduction and Warnings......................................2

Installation............................................................2-3

Connection To Power Supply..................................3

Preparing Product ..................................................4

Operating Panel ......................................................4

Programming - G Series Electronic

Touchpad Model ..................................................4-6

Errors - G Series Electronic Touchpad Model ....6-7

Operating Panel Description-MG Series Traditional

Rocker Switch Model ..............................................7

Dispensing Product ................................................8

Adjustments ............................................................8

Cleaning & Sanitizing ........................................9-11

Maintenance ....................................................11-13

Crathco Granita Preventive

Maintenance Checklist ......................................14-15

Accessories ..........................................................16

Troubleshooting ..............................................17-18

Exploded View ................................................19-26

Crathco Granita G&MG Series Parts List ............27

Gear Motor Exploded View ..................................28

Refrigeration Diagrams....................................29-30

Electrical Diagrams..........................................31-33

Summary of Contents for Crathco G23-2B

Page 1: ...2B MG235 2B MG236 2B TABLE OF CONTENTS Introduction and Warnings 2 Installation 2 3 Connection To Power Supply 3 Preparing Product 4 Operating Panel 4 Programming G Series Electronic Touchpad Model 4 6 Errors G Series Electronic Touchpad Model 6 7 Operating Panel Description MG Series Traditional Rocker Switch Model 7 Dispensing Product 8 Adjustments 8 Cleaning Sanitizing 9 11 Maintenance 11 13 Cr...

Page 2: ... 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 Powdere...

Page 3: ...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 Connection To Main Power Supply The electrical safety of this Granita machine can only be achieved if the machine is properly connected to an appropriate grounded electrical receptacle...

Page 4: ...concentrate into a dry bowl 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 fi...

Page 5: ...tion 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...

Page 6: ...lect 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 ...

Page 7: ...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 G switch to activate the refrigeration mode Stand by mode setting Select the E switch to activate the mixing parts spiral auger and the G switch to activate refrigeration mode to keep the product s in bowl s overnight Defrost Ti...

Page 8: ...stment thicker thinner Note This D1 is an indicator gauge only To adjust consistency turn screw on top D Page 8 G MG Series Granita Machine Figure Q Figure P 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 ...

Page 9: ...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 L by unscrewing the two knobs F 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 fron...

Page 10: ...he lid cover will not fit properly if this is not cor rectly positioned 12 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 avoid cracking the bowl see fig BB 13 Reassemble the mixing rod O so that its gears are aligned with the lower gear ring This will allow the front pin to fit perfectly i...

Page 11: ...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 Removing and cleaning the filter Weekly This should be done weekly or more often if necessary In or...

Page 12: ... in the slot on the small panel on the top of the cover DA and rotate the quarter to pop the panel open see fig II 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 merchandise...

Page 13: ...er 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 cylinder See Figure NN 6 After extracting the old spindle...

Page 14: ...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 lubricat...

Page 15: ...able air filter if so equipped standard on G MG models optional on ID models Check condition of filter 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 90...

Page 16: ... bowl until the are firmly in place 3 Interlock straps above the bowl lid 4 Attach the padlock 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 Contact your local Grindmaster Corporation representative or Grindmaster Corporation customer service at 800 695 4500 f...

Page 17: ...osition 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 Check and correct 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 t...

Page 18: ...instructions on page 11 Removing and Cleaning Filter Reposition unit to maximize ventilation space see page 2 installation figures Properly install filter see Removing and cleaning filter page 11 Reposition unit to maximize ventilation space see page 2 installation figures The dispensing valve has been incom pletely or incorrectly replaced in its position The free movement of the dispensing valve ...

Page 19: ...G MG Series Granita Machine Page 19 Exploded View MG23 2B 115 60 for units up to serial number 8195 ...

Page 20: ...Page 20 G MG Series Granita Machine Exploded View G23 2B 115 60 for units up to serial number 8195 ...

Page 21: ...G MG Series Granita Machine Page 21 Exploded View G23 2B 115 60 serial number 8195 and higher ...

Page 22: ...Page 22 G MG Series Granita Machine Exploded View MG23 2B 115 60 serial number 8195 and higher ...

Page 23: ...G MG Series Granita Machine Page 23 Exploded View G235 2B 220 50 ...

Page 24: ...Page 24 G MG Series Granita Machine Exploded View MG235 2B 220 50 ...

Page 25: ...G MG Series Granita Machine Page 25 Exploded View G236 2B 220 60 ...

Page 26: ...Page 26 G MG Series Granita Machine Exploded View MG236 2B 220 60 ...

Page 27: ...Lid Plug 368 90419 Front Screw Lid Plug 369 90420 Rear Screw Lid Plug 370 90421 Wiring for Black Lid w Cord 371 90422 Black Cover For Light Bulb 372 90423 Black Evaporator Support 373 90424 Black Cover for Evaporator Support 374 90425 Wiring PC Control Board G Series 375 90426 Black Knob to Secure Bowl 376 90427 Control Board Mounting Plate 377 90428 PC Control Board Electronic 378 90429 Filter In...

Page 28: ...D VIEW Item Description Part No 1 ROTOR WITH TWO BEARINGS 90174 4 ARMATURE 90169 6 DRIVE GEAR WITH BEARING 90165 7 IDLER GEAR WITH BEARING 90166 10 OUTPUT SHAFT AND GEAR 90171 13 OUTPUT SHAFT BEARING 90170 19 HOUSING GASKET 90167 41 OUTPUT SHAFT SEAL 90168 ...

Page 29: ... DRIVER RIGHT CAPILLARY TUBE RIGHT EVAPORATOR RIGHT ACCUMULATOR RIGHT CONDENSER AND CONDENSER FAN MOTOR REFRIGERATION DIAGRAM MODEL MG SERIES 115V Item Description CL COL DL CTL EL AL CR COR DR CRT ER AR C CFM COMPRESSOR LEFT CUT OUT LEFT DRIER LEFT CAPILLARY TUBE LEFT EVAPORATOR LEFT ACCUMULATOR LEFT COMPRESSOR RIGHT CUT OUT RIGHT DRIVER RIGHT CAPILLARY TUBE RIGHT EVAPORATOR RIGHT ACCUMULATOR RIG...

Page 30: ... SERIES 220V Item Description CL DL CTL EL AL CR DR CRT ER AR C CFM COMPRESSOR LEFT DRIER LEFT CAPILLARY TUBE LEFT EVAPORATOR LEFT ACCUMULATOR LEFT COMPRESSOR RIGHT DRIVER RIGHT CAPILLARY TUBE RIGHT EVAPORATOR RIGHT ACCUMULATOR RIGHT CONDENSER AND CONDENSER FAN MOTOR ...

Page 31: ...NG SWITCH LEFT MIXING AUGER SWITCH RIGHT FREEZING SWITCH RIGHT REFRIGERATING SWITCH RIGHT GEAR MOTOR LEFT GEAR MOTOR FAN LEFT THERMOSTAT LEFT GEAR MOTOR RIGHT GEAR MOTOR FAN RIGHT THERMOSTAT RIGHT COMPRESSOR LEFT COMPRESSOR RELAY LEFT STARTING CAPACITOR LEFT OVERLOAD PROTECTOR LEFT COMPRESSOR RIGHT COMPRESSOR RELAY RIGHT STARTING CAPACITOR RIGHT OVERLOAD PROTECTOR RIGHT TRANSFORMER CONDENSER FAN M...

Page 32: ...ER SWITCH RIGHT FREEZING SWITCH RIGHT REFRIGERATING SWITCH RIGHT GEAR MOTOR LEFT GEAR MOTOR FAN LEFT THERMOSTAT LEFT GEAR MOTOR RIGHT GEAR MOTOR FAN RIGHT THERMOSTAT RIGHT COMPRESSOR LEFT COMPRESSOR RELAY LEFT STARTING CAPACITOR LEFT OVERLOAD PROTECTOR LEFT COMPRESSOR RIGHT COMPRESSOR RELAY RIGHT STARTING CAPACITOR RIGHT OVERLOAD PROTECTOR RIGHT TRANSFORMER CONDENSER FAN MOTOR LID LAMP LEFT LID LA...

Page 33: ...MER IN 120V OUT 12V BACK LAMP LEFT BACK LAMP RIGHT LID LAMP LEFT LID LAMP RIGHT CONTROLLER BOARD COMPRESSOR LEFT COMPRESSOR RELAY LEFT STARTING CAPACITOR LEFT OVERLOAD PROTECTOR LEFT COMPRESSOR RIGHT OVERLOAD PROTECTOR RIGHT GEAR MOTOR LEFT GEAR MOTOR FAN LEFT GEAR MOTOR RIGHT GEAR MOTOR FAN RIGHT MICROSWITCH LEFT MICROSWITCH RIGHT CONDENSER PROBE EVAPORATOR RIGHT PROBE EVAPORATOR LEFT PROBE ELECT...

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Page 36: ...Machines Crathco Hot Beverage Dispensers Crathco Cold and Frozen Beverage Dispensers 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 com ...

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