Crathco Beverage Freezers Service Manual for Model 6321L TABLE OF CONTENTS Description........................................... 2 - 3 Unpacking............................................ 3 - 4 Assembly & Installation....................... 4 - 6 Sanitizing and Starting Unit ................ 6 - 8 Cleaning................................................. 9 Controls & Product Issues...................10 - 11 Operating Freezer..................................12 Service & Maintenance......................
General Description The Model 6321L is a freezer that dispenses frozen carbonated alcoholic beverages (see photo on front cover). The freezer has two major components, the freezer sections (dispense head) and the product feed system (lower cabinet area). 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.
The freezer is equipped with an automatic defrost system to allow the frozen product to melt back to a liquid. This eliminates any large ice crystal formation or poor product consistency that may develop. This automatic timer can be pre-programmed to occur at desired times of the day. The defrost cycle takes four hours to complete and should be programmed in. Unpacking and Inspection Shipment and Transit The freezer has been operated and tested at the factory.
Periodic Inspection 1) Check the CO2 tank pressure gauge on the cylinder regulator assembly. Replace if tank pressure drops below red line. 2) Make sure the unit contains a sufficient supply of syrup and alcohol. 3) Check to see that there is sufficient air space on both sides of the unit. Proper air circulation is required for efficient operation. Make sure that the louvers are not obstructed at any time. CAUTION: Failure to provide minimum air flow clearance will void the freezer warranty.
Attaching Drip Tray 1) The drip tray is mounted on two screws that are located on the lower front of the freezer cabinet. 2) Place the key hole slot of the drip tray support bracket W0471022 on to these screws and tighten the screws. 3) Angle the back of the drip tray surround bracket into the drip tray support bracket W0471022 and lower bracket to lock it into place. 4) Place drip tray onto drip tray surround bracket. 5) Place the louvered drip tray insert into drip tray. Locating Freezer 1.
Filling CO2 Lines CAUTION: CO 2 lines should be filled slowly to prevent the possibility of damaging components. Open tank shut off valve slowly until it is completely open. NOTE: Open valve all the way to prevent leakage around the valve shaft. Adjusting CO2 Regulators NOTE: CO 2 regulators are pre-set at the factory. Check for accuracy. 1) Adjust the CO2 regulator that drives the bag-in-box syrup pump and alcohol pump to 60 psi. Turning regulator adjustment clockwise raises the pressure.
Adding Product Connecting Syrup Supply 1) Open new bag-in-box as instructed on box. 2) Connect red QCD syrup connector to new bag-in-box. 3) Repeat for second bag-in-box. NOTE: Make sure that the BIB lines run behind the bottle rack line so the bottle rack can be slid open easily. Connecting Alcohol Supply 1) Remove bottle cap. 2) Slide a white tubular plastic adapter over the neck of each liquor bottle until the bottle seats itself against the shoulder of the adapter.
Checking BRIX (Water-to-Syrup Ratio) of Dispensed Product (cont’d) 6) If the volume is not 3.7 oz. (110 ml), consult the Troubleshooting Guide in this manual. Note: Due to the thick viscosity of the syrup, it may be necessary to purge the syrup line to obtain an accurate flow rate reading. Purge the syrup line by first closing the syrup valve, opening the water valve and then momentarily turning on the test switch.
Cleaning NOTE: Before cleaning, all product should be drained from the freezing cylinder, pressure vented, and either the valves set closed or product removed from the machine. 1) Disassemble the dispensing valve by first removing the dispensing valve pin (Figure 12) 2) Push up on the dispensing valve plunger and pull out the dispensing handle. The plunger assembly complete with spring and "O" Rings can then be removed as a unit. 3) Remove knobs and carefully remove the freezer dispensing valve assembly.
Controls and Product Issues Consistency Adjustment NOTE: The following product consistency (thickness) control adjustment procedure requires removal of the right side panel. It is suggested that a qualified service technician make this adjustment because side panel removal exposes hazardous moving parts. Warning: Do not attempt freezer adjustments until electrical power has been disconnected. It may become necessary to readjust the consistency setting (thickness) to compensate for variations.
Product Quality BRIX Correct BRIX effects product flavor and freezing characteristics. Frozen product with low BRIX may have a weak flavor, larger ice crystals, and a tendency to dispense slowly. Product with high BRIX has an overly strong flavor, increased portion cost and results in lower freezer output capacity. Alcohol Content High alcohol content may prevent the freezer from serving product at proper thickness.
Operating Freezer Unit Operation 1) Check that a "Mix Out" light is not illuminated. This indicates the freezer has an adequate amount of syrup, CO2, alcohol and water (only one light will be ON at a time). Check machine after each product is filled. 2) Insure that the "ON/OFF" switch in the lower back compartment of the cabinet is in the "ON" position. 3) Insure that the "TEST/OFF/RUN" switch in the lower back compartment of the cabinet is in the "RUN" position.
Service and Maintenance Quarterly Preventative Maintenance Quarterly Preventative Maintenance is recommended to extend the life of the machine. Preventative Maintenance visits include sanitizing the entire system, checking for and replacing any worn parts, optimizing operating conditions. See the parts replacement schedule at the end of this section. Sanitizing Entire Liquid Systems It is essential that the entire liquid system be sanitized every 3 months by a qualified technician.
Lubricating Plunger O-Rings 1) 2) 3) 4) 5) 6) Close syrup and alcohol manual control valves located in the back compartment of the lower cabinet. Place freezer in "CLEAN" position. Drain freeze cylinder while purging with carbonated water. Turn freezer control switch to the "OFF" position. Vent pressure and drain completely. Remove dispensing valve plunger. a) Remove valve handle retaining pin. b) Push plunger up and remove handle. c) Pull plunger down. 7) Remove "O" Rings and clean "O" Ring grooves.
Parts Replacement Schedule Part Description Monthly Drive shaft seal W0340210 Drive shaft W0451067 Drive belts W0450209 Scraper blades on dasher W1431084 Square cut o-ring on valve body/face plate W0340055 Every 3 Months Inspect & replace if necessary Crathco Beverage Freezers Annually Quantities to be Replaced Replace 1 Inspect & replace if necessary Inspect & replace if necessary 1 Replace Front stator flange bearing W0430032 Rear stator flange bearing W0430024 Dispense valve o-rings W0340022
Troubleshooting Guide If machine is not operating properly, check the following list for possible solutions. Only a qualified service technician should perform electrical and mechanical adjustments or repairs. Always disconnect power before attempting any maintenance procedures. Problem Machine won’t run (no lights, not motor) Probable Cause • • Machine will not freeze • • • • • • • • • • • Plug machine directly into outlet. Do not use extension cord.
Addendum 1 - Complete Unit Exploded View 1 11 11 11 28 25 28 10 8 9 12 14 16 23 10 24 15 ITEM 1 2 4 5 6 7 8 9 10 11 12 13 14 PART # W0150590 00800 W0800120 W0800121 W0800122 W0800124 W0340210 W0430089 W1431084 W0890235 W0340055 W0610133 W0480460 DESCRIPTION Stock Assembly Serial Label Base Board Assembly Shipping Box L-Block Foam Top Carton Pad Coconut Oil Seal Scraper Dasher Scraper Blade Kit, Panel Black O-ring, Valve Body Panel Screws Body, Valve Pressure Crathco Beverage Freezers ITEM 15 16
Addendum 2 - Base Cabinet Regulators POWER OFF ON SAMPLE TIMER OFF ON CONTROL SELECT RUN TEST OFF Alcohol Valve/Control Syrup Valve/Control Test Port Water Valve/Control Carbonator Water Pump Page 18 Crathco Beverage Freezers
29 28 64 59 63 WHT / BLK YELLOW / BLK BLACK / WHT 58 62 60 VIOLET / WHT VIOLET / WHT 31 35 57 27 64 62 59 63 31 57 35 60 58 62 Addendum 4 - Electrical Connections in Lower Cabinet Crathco Beverage Freezers 60 58 62 59 63 64 35 57 31 Addendum 3 - Electrical Connections in Lower Cabinet Addendum 5 - Electrical Connections Cabinet to Freezer Page 19
Addendum 6 - 6321 Base Cabinet Electrical Schematic 28 29 27 60 64 57 63 35 31 59 62 58 30 19 15 21 20 30 33 64 18 34 30 32 62 27 23 32 24 14 21 62 59 45 32 17 16 29 33 23 24 22 25 28 25 63 24 61 13 37 18 38 33 34 17 39 16 15 26 14 36 12 40 13 11 57 35 31 60 10 58 44 7 9 6 7 8 62 8 42 Page 20 42 43 41 ITEM PART NUMBER DESCRIPTION 30 W0570045 BALLAST 61 W0570235 90811 TERMINAL BLOCK 32 33 61847 POWER SWITCH 34 61847 TIMER SWITCH 4
Addendum 7 - 6321L-A Ladder Diagram Crathco Beverage Freezers Page 21
Addendum 8 - 6321 Freezer Electrical Schematic 14 75 63 74 69 19 76 69 18 1 40 25 37 58 38 1 6 64 13 24 2 3 10 9 36 12 41 10 2 39 22 19 50 23 27 21 33 12 11 5 13 4 5 26 18 11 49 3 27 26 32 68 15 9 25 69 28 55 74 31 48 8 8 29 16 30 73 33 55 35 45 34 34 57 55 77 55 28 30 17 66 32 47 46 65 20 76 75 16 20 53 77 24 22 49 50 23 15 54 59 21 17 61 6 16 60 70 14 62 31 28 35 59 57 58 64 29 60 62 63 27 ITEM LENG
Addendum 9 - Product Flow Schematic Crathco Beverage Freezers Page 23
Addendum 10 - 6321 Base Cabinet Panels Exploded View ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PART NO. 90780 90727 90746 90827 90724 90829 90830 90831 90728 86600 07348-1 62486 W0570205 W0570207 W0570242 Page 24 DESCRIPTION PANEL, BOTTOM ASSY, BASE CART PANEL ASSY, INTERIOR, BASE CART ALCOHOL HOLDER TOP PANEL ASSY RIGHT SIDE PANEL ASSY LEFT PANEL ASSY DOOR ASSY REAR DOOR ASSY PLASTIC COSMETIC COVER TIE, WIRE, NYLON, T18R (NOT SHOWN) POP RIVET DECAL, GCS LOGO - 4 X 1.25 TERM, 2-520103-2.
Addendum 11 - 6321 Base Cabinet Exploded Parts View Crathco Beverage Freezers Page 25
6321 Cabinet Exploded Parts View ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Page 26 PART NO.
Addendum 12 - Rack Exploded View ITEM NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 PART NO. 90751 90752 90794 61153 60550 90802 90850 90799 90800 07023-04 90747 90877 60012 90748 90749 90750 90878 Crathco Beverage Freezers DESCRIPTION MNT BRACKET, LEFT, BERG ALCOHOL HOLDER ASSY MNT BRACKET, RIGHT, BERG ALCOHOL HOLDER ASSY 3/8” X 3/8” X 3/8” BARB TEE TUBING, BRAIDED .375” ID X .625” OD X 2.5” L CLAMP, 11/16 STEPLESS DRAWER SLIDE MNT. BRACKET, RIGHT 6-32 UNF S.S.
Addendum 13 - 6321 Cabinet Base Exploded View Page 28 Crathco Beverage Freezers
6321 Cabinet Base Exploded View Key ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 PART NO. 90723 W0630900 W0630898 W0611086 W0611255 W0650415 90873 90874 W0620278 W0620282 90733-23.
Addendum 14 - 6321 Base Cart Top Panel Exploded View ITEM 1 2 3 4 5 6 7 8 PART NO. 90722 90840 W0570043 W0570044 90835 90807 90810 90836 DESCRIPTION PANEL, TOP-BASE CART REGULATOR ASSEMBLY BULB, FLUORESCENT SOCKET, LIGHT-LEVITON ELECTRICAL ASSY WIRING HARNESS - BROWN FOREMAN ELECTRICAL BOX, BASE CART ELECTRICAL BOX COVER, BASE CART 9 82086 8-32 UNF S.S. ACORN NUT 10 W1631508 SADDLE WIRE, ALL STATES - (NOT SHOWN) 90850 90812 6-32 UNF S.S.
Addendum 15 - 6321 Front Cabinet Door ITEM PART NO. DESCRIPTION 1 90721 DOOR, FRONT-BASE CART 2 90851 DOOR HINGE, STANDARD DUTY 3 W0610923 PEM STUD, 8-32 X 3/8” 4 61339 8-32 UNF S.S.
Addendum 16 - Rear Door and Key 3 2 4 1 5 ITEM NO. 1 2 3 4 5 Page 32 PART NO. 90720 W0610921 61339 90851 90771 DESCRIPTION DOOR, REAR-BASE CART PEM STUD, 8-32 X 1/4” 8-32 UNF S.S.
Addendum 17 - Freezer Exploded View 110 160 10 30 40 A 130 150 150 60 150 170 170 170 170 160 80 ITEM 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 PART # W0610682 W0611254 W0611255 W0611086 W0201191 W0620103 W0650119 W0110013 W0611085 W0201192 W0450053 W0610646 W0450209 W0600029 71373 W0670008 W0570018 W0600230 W0620106 W0201008 W0201006 150 DESCRIPTION 5/16-18 x 3/4 Hex Hd Cap Screw 5/16 Flat Washer 5/16 Split Lock Washer 5/16-18 Hex Nut Z/P Suction Line Pressu
Addendum 18 - Freezer Base Exploded View Page 34 ITEM Part # Description 1 W0201001 Compressor Assembly 2 W0201000 Condenser Assembly 3 W0320129 Fan Sub-Assembly 4 W0321026 Drive Motor Assy. 5 W0210106 Base Pan Assy. 6 W0611410 Rivet, Magna-Lok 7 W0611247 1/4 Int. Tooth Lk. Wshr.
Addendum 19 - Freezer Electrical Box Exploded View 20 23 20 13 14 16 20 20 11 3 1 7 22 2 19 3 19 3 4 4 10 3 21 10 21 21 5 8 9 ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 PART # W0570603 W0570617 W0630006 W0630811 W0570638 W0572409 W0570656 W0570235 W0570660 W0570600 W0570682 W0572407 W0572408 86805 W0610131 61532 86600 W0572530 83248 W0610127 71373 W0570242 W0600218 W0572390SH2 Crathco Beverage Freezers 6 DESCRIPTION Start Capacitor Run Capacitor Heyco Bushing Clip,
Addendum 20 - Product Feed Components Exploded View Page 36 ITEM PART # DESCRIPTION 1 W0340011 #115 O-ring (Carburetor) 2 W0471115 Pressure Inlet Fill 3 W0471118 Pressure Inlet Fill Retainer 4 W0650400 Press Switch MSPS - JJ100SS-F 5 60552 Accumulator 6 W0620282 Tee, 3/8 Tube John Guest 7 W0620285 3/8 NPT x 3/8 NPT Stem J/G 8 W0620280 Adapter, 1/2 NPT x 3/8 Tube 9 90763 Elbow, 3/8 Tube x 3/8 Tube 10 90764 Elbow, 3/8 Stem x 3/8 Stem 11 90733 Tubing, LDPET, .250ID x .
Addendum 21 - Refrigeration Components ITEM Part # Description 1 W0650501 Access Valve 2 W0650112 Filter Drier 3 W0201191 Suction Line 4 W0200123 Compressor 5 W0200256 Condenser 6 W0201009 Hot Gas Line 7 W0650119 8 Thermostatic Expansion Valve Evaporator Line 9 Suction Line 10 W0620105 1/4” Street Elbow 11 W0620102 1/4” Tee 12 W0201011 Coolant Line 13 W0201012 Coolant Line 14 W0201013 Coolant Line 15 W0620112 3/8” Copper Elbow 16 W0201153 90 Deg.
Addendum 22 - Refrigeration Schematic Page 38 Crathco Beverage Freezers
NOTES Crathco Beverage Freezers Page 39
Cocktail Machine Indemnity The Purchaser and/or Lessee hereby releases the manufacturer of this machine, Grindmaster Crathco Systems, Inc.
