Grindmaster Refrigerator 6321L User Manual

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.........................13 - 15  
Troubleshooting.................................... 16  
Addendums........................................... 17 - 38  
Prior authorization must be obtained from  
Grindmaster Crathco Systems for all warranty claims.  
Model 6321L  
Grindmaster Crathco Systems, Inc.  
4003 Collins Lane  
Louisville, KY 40245 USA  
(502) 425-4776 (800) 695-4500  
FAX (502) 425-4664  
Grindmaster Crathco Systems, Inc., 2002  
PRINTED IN USA  
1102 Form # WH-324-03  
Part # 90818  
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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. Upon arrival the complete freezer  
must be thoroughly checked for any damage which may have occurred in transit. NOTE: A  
Tip (N) Tell warning device is placed on each shipping carton at the factory. If the arrow tip is  
blue, the carton has been tipped in transit. (See Figure 1)  
IMPORTANT: The carrier is responsible for all damage in transit whether visible or con-  
cealed. 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  
shortage is found later, advise the carrier within 10 days and request inspection. The cus-  
tomer must place any claim for damage and/or shortage with the carrier. The manufacturer  
cannot make any claims against the carrier.  
Loose Parts Shipped with Unit  
Part #  
90881  
90882  
Name  
Quantity  
1
Figure 1  
Installation Guide  
Operators Manual  
Plastic parts bag  
1
1
1
6
1
1
6
1
1
1
1
1
1
2
2
2
1
6
6
6
1
6
2
1
W0660060  
W0600121  
W0631903  
W0600159  
W0890237  
W0340022  
W0660300  
W0480437  
W0480445  
W0611728  
W0631230  
W0660016  
W0610718  
W0611255  
W0611086  
60382  
90748  
90749  
90750  
90770  
90878  
W0611254  
W0631549  
Header installation instruction sheet  
Sanitizer packets  
Warranty card  
Drip pan kit  
“O” ring #213  
Dow Corning Silicone lubricant  
Plunger, Slush pressure  
Handle, valve  
Fas-Pin  
Compression Spring  
Silicone adhesive  
Screw 5/16-18 Hex Hd  
Washer, 5/16” lock  
Nut, 5/16” Hex, Zinc  
Heyco 1” snap bushing  
Silicone Nozzle  
Bottle Holddown Clamp  
Adjustment Knob  
90° Support  
Lock Washer #10  
Washer  
Coke® Cleaning Fitting  
Safety and Inspection  
Safety Precautions  
1) Read and understand the operating instructions in this manual thoroughly.  
2) Note all warning labels on the freezer.  
3) Do not wear loose fitting garments or jewelry that could cause a serious accident.  
4) Stay alert at all times during operation.  
5) Keep operating area clean.  
Do not operate freezer if any excessive noise or vibration occurs. Contact an authorized service agent.  
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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. (See Locating Freezer)  
Freezer Assembly and Installation  
Attaching Freezer to Base Cart  
1) Unbox freezer (top half)  
a) Remove both side panels and then use a 7/16” socket to remove the 2  
bolts at the bottom of the freezer that hold it to the shipping pallet.  
b) Cut the wire tie (note red tag) on freezer drive motor. (Figure 2)  
c) Leave right side panel (when facing front of freezer) off.  
2) Place a bead of silicone sealant all the way around the edge of the base  
cart top. (See Figure 3)  
3) Place beverage freezer onto the base cabinet on top of the bead of silicone.  
Position freezer over mounting holes before sealant sets. (Figure 4)  
4) Secure top half of unit to base cart by installing 7/16" bolts and nuts using  
Figure 2  
the same holes used to secure the freezer to shipping pallet.  
5) Open rear door of base cabinet and place black plastic bushing in wire hole in the top  
of the cabinet.  
6) Feed the 2-multi-pin connectors found in the freezer down into the base cabinet  
through the hole in the top of the lower cabinet. Connect each connector from the  
cabinet to matching connector in the freezer. (See Addendum 5)  
CAUTION: Do not leave too much slack in the wires as they could get caught in the fan  
blades. Use wire tie and holder to secure wires in place. See electrical diagram.  
7) Remove the base cart electrical box cover (located in the upper right corner of the base  
cart). Feed the power cord (found inside lower rear right side of freezer, near the terminals)  
through hole into the base cart and then feed it into the hole in the rear of the electrical  
box. Connect power cord wires. (See Addendum 3 and 4)  
Figure 3  
8) Route the product feed tubing (located in the freezer) down through hole into base cabinet.  
Route the tubing to the top part of the freezer following the same path as the wiring.  
9) Attach the tubing to the John Guest 90° elbow fitting which is located in the base cabinet behind the electrical  
box. Make certain that the tubing is pushed all the way into the fitting. (Figure 5)  
10) Replace freezer side panels.  
11) Turn "on/off/clean" switch on front of unit to the OFF position.  
90° Support  
Product Feed Tubing  
Figure 5  
Figure 4  
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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. Locate freezer close to a source of potable water. Water pressure must be 15-psig or higher.  
2. Connect freezer to a properly grounded 115-120 VAC, 60Hz single-phase electrical circuit with a 20-amp  
(NEMA 5-20R) minimum-rated disconnect switch (not provided) that is fused at 20 amps (slow-blow).  
CAUTION: Safe operation of this unit can only be achieved if the freezer is properly connected to an appro-  
priate grounded, electrical receptacle that complies with current national safety standards. The manufactur-  
er cannot be held responsible for damage and/or injury caused by failure to connect the unit to an appropri-  
ate source of power.  
3. A minimum air clearance of 6" is required on both sides of the freezer during operation.  
CAUTION: Restricting air flow through the freezer will greatly reduce the output capacity as this is an "Air  
cooled" unit. Air is drawn in to cool the unit through the right side (facing front of freezer) and exhausted  
through the left side. Failure to provide minimum air flow clearance will void the freezer warranty.  
Connecting City Water Source Line to Unit  
The National Sanitation Foundation requires the following for an NSF approved water hook-up:  
• A quick disconnect water connection or enough coiled tubing so that the machine can be moved for cleaning  
underneath.  
• An approved backflow prevention device, such as a double check valve to be installed between the machine and  
water supply. On units plumbed to permanent water line, installation of a water filter/softener system is  
recommended to prevent lime and scale build-up in the machine.  
• Water pipe connections and fixtures directly connected to potable water supply shall be sized, installed and  
maintained in accordance with Federal, State, and Local codes.  
1) Gather 3/8" OD low-density polypropylene tubing or 3/8" OD copper tubing with a  
1/4” SAE Flare Connection (not provided).  
2) Connect the tubing to the 1/4” SAE Flare fitting found under the left side of the  
base unit. (Figure 6)  
3) Connect the other end of the tubing to a water source.  
NOTE: Where water quality is low an activated charcoal water filter may be needed  
to achieve adequate frozen product overrun and proper flavor profile.  
If water pressure exceeds 50 psig install a water regulator such as Shurflo  
# 183-059-06, or equivalent, to inlet water line.  
Figure 6  
Installing CO2 Regulator Assembly on CO2 Cylinder  
1) Unscrew protector cap (with chain attached) from CO2 cylinder valve. Open CO2 cylinder valve slightly counter-  
clockwise to blow any dirt or dust from outlet fitting before installing CO2 regulator assembly, then close valve.  
CAUTION: CO2 cylinders contain gas under high pressure. Handle cylinders with care.  
2) Remove shipping plug from CO2 regulator assembly coupling nut, then make sure gasket is in place inside the  
nut. Install hose regulator assembly on the CO2 cylinder, then tighten coupling nut. DO NOT OPEN CO2  
CYLINDER VALVE AT THIS TIME.  
NOTE: Before attempting to activate the systems, insure that all manual shut-off valves, located in the lower back  
compartment of the base cabinet, are closed (vertical position). Do not open them until instructed to do so.  
Installing CO2 Regulator Assembly on Existing CO2 Line  
NOTE: Bulk system must have 100 psi to operate.  
1) Purchase a low pressure regulator set. (Norgren Model C81-570-2 recommended)  
2) Disconnect carbonator and BIB pump lines. Remove existing regulator set and install low pressure set.  
3) Reconnect lines to outlet side of set. Bring in bulk system line to inlet of regulator.  
NOTE: Install a cutoff valve between regulator and bulk system.  
Crathco Beverage Freezers  
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Filling CO2 Lines  
CAUTION: CO2 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: CO2 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. Tighten locknut at  
this setting. (Figure 7)  
CAUTION: The use of excessive pressure (above 75 psi) will result in  
pump seizure.  
2) Adjust the CO2 regulator, connected to the carbonator, to  
90 psi. NOTE: Do not exceed 120 psig, the carbonator pressure  
relief setting. Turning regulator adjustment clockwise raises the  
pressure. Tighten locknut at this setting.  
Figure 7  
Activating Water Source Line Connection  
Open the water line manual shut-off valve in the base cabinet of the 6321L and check for water leaks.  
Sanitizing and Starting Unit  
Sanitizing  
1) Prepare a minimum of 2 gallons (7.6 liters) of sanitizing solution (Divorsol CX or equivalent).  
NOTE: Add 5 ounces (150 ml) of Divorsol CX to 2 gallons (7.6 liters) of 120° Fahrenheit (50° Centigrade)  
water to achieve a concentration of 500 parts per million.  
2) Disassemble the freezer following steps 1 through 8 in the Cleaning Section.  
NOTE: For initial start-up, be sure to clean and sanitize the freezer before adding product.  
3) After disassembly, thoroughly scour each part of the freezer in a warm mild detergent solution including  
the inside of the freezing cylinder. Dip or wipe each part in sanitizing solution and allow to air dry on  
clean paper toweling. DO NOT WASH COMPONENTS IN A DISHWASHER.  
4) Rinse each part with clean water.  
5) Reassemble components following the instructions in the Cleaning section of this manual.  
6) Pour 1.5 quarts of sanitizing solution into both the front and back alcohol bottle rack.  
7) Connect a red QCD cleaning fitting to one of the BIB connectors in the lower back cabinet and immerse the BIB  
connector into the remaining solution.  
NOTE: If a QCD cleaning fitting is not available, cut the plastic outlet fitting out of an empty BIB container.  
8) Sanitize system by opening all three of the manual shut-off valves in the back  
of the lower cabinet (syrup, alcohol and carbonated water).  
9) Turn the freezer switch to "CLEAN".  
10) Turn the control switch in the back of the base cabinet to "AUTO".  
11) Allow the freeze cylinder to fill half way and run for 5 minutes.  
12) Turn the freezer switch from "CLEAN" to "OFF".  
13) Open the pressure relief valve located on the freezer dispensing valve to  
relieve all of the pressure in the freeze cylinder.  
14) Remove the QCD cleaning fitting from the first BIB line and place  
it on the other BIB connection. Place second line in remaining solution.  
15) Pull or push transfer valve to opposite setting.(Figure 8)  
Figure 8  
16) Repeat steps 9-12.  
17) Remove BIB connector from container of sanitizing solution.  
18) Purge sanitizer from product lines and barrel.  
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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.  
3) Remove the blue plastic protective cap from reservoir port and save it.  
4) Bend the nozzle of the white plastic adapter over with your forefinger to stop liquor flow.  
(Figure 9)  
5) Insert the nozzle of the white plastic tubular adapter into the reservoir port and allow  
adapter to drop into the reservoir opening.  
6) Stand inverted bottle upright.  
7) Loosen the thumbscrew on the hold-down bracket and slide the hold-down bracket until it  
is centered on the bottom of the bottle.  
8) Push down on bracket until it firmly holds the bottle in place and tighten the knob.  
Figure 9  
Note: If you are using partially empty bottles place the emptiest bottle at the end of the  
reservoir farthest from the reservoir outlet tubing. This will allow the partially filled bottle to be emptied first.  
Activating Alcohol and Syrup System  
NOTE: See Addendum 2 photo for location of components  
1) Open manual valve located between gas powered alcohol pump and the alcohol electric solenoid with flow  
control. This activates the alcohol supply system.  
2) Open the manual valve between the gas powered syrup pump and the syrup electric solenoid with flow control.  
This activates the syrup supply system.  
3) Liquid should fill the lines and the pumps should cycle.  
Checking BRIX (Water-to-Syrup Ratio) of Dispensed Product  
NOTE: The water, syrup, and alcohol ratio are all pre-set at the factory to meet drink quality standards.  
Adjustment of these ratios can only be done by authorized service technicians.  
A graduated cylinder that holds at least 17 ounces (500ml) is needed to test the BRIX. A measuring cup can be  
used if a graduated cylinder is not available.  
1) Switch back cabinet control box switch (Figure 10) to "TEST" mode.  
2) Switch Freezer control to "CLEAN".  
3) Open test output port valve.  
Water Ratio Check:  
NOTE: See Addendum 2 for location of components.  
1) Close all manual valves except the water valve.  
2) Put test output port tube into the graduated cylinder.  
3) Toggle "Sample Timer" switch to "ON".  
4) Water will flow into the graduated cylinder for 10 seconds.  
5) When water flow stops, measure the water volume in cylinder. The proper  
setting is 13.5 oz. (400ml).  
6) If the volume is not 13.5 oz (400ml), consult the Troubleshooting Guide in this  
Figure 10  
manual.  
Syrup Ratio Check:  
1) Close all manual valves except syrup.  
2) Put test outlet port tube into the graduated cylinder.  
3) Toggle "Sample Timer" switch to "ON".  
4) Syrup will flow for 10 seconds.  
5) When flow stops, measure syrup volume in cylinder. The proper setting is 3.7 oz. (110ml).  
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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. This will purge all syrup from the lines and allow them to drain properly for a correct  
reading of the syrup flow rate.  
7) After the correct water and syrup flow rates are set, open both the water and syrup valves.  
8) Turn the "TEST" switch to "ON".  
9) Dispense mixed water and syrup though the test line.  
10) Check the BRIX of the mix using a refractometer. Verify that the solution has a BRIX reading of 15.  
Alcohol Ratio Check:  
1) Close all manual valves except for "ALCOHOL".  
2) Put test outlet port tube into the graduated cylinder.  
3) Toggle "Sample Timer" test switch to "ON". Product will flow for 10 seconds.  
4) When flow stops, measure volume in the graduated cylinder. The proper setting is 3.4 oz. (100ml).  
5) If the volume is not 3.4 oz. (100ml), consult the Troubleshooting Guide in this manual.  
Checking Unit for Syrup, CO2, and Water Leaks  
After checking all the ratios, open all manual valves. Open the cabinet's front and rear doors and check for any  
leaks. If any leaks are located, contact an authorized service technician to fix the leak. Close and lock the front and  
rear doors.  
Defrost Timer  
Setting Clock (Time of Day)  
1) The timer is located inside the freezer back lit merchandiser box on the top front of the freezer. (Figure 11)  
2) Rotate the timer dial, in the direction of the arrows, until the mark lines up with the current time of day.  
3) The timer has a 2 week battery backup that requires 24 hours to charge fully.  
Programming Defrost (Automatic)  
1) Push all switch pin actuators toward the outer edge of the programming disk.  
2) Set freeze time by pushing the switch pin actuators toward the center of the  
programming disk. (Figure 11) An adequate defrost cycle should last  
3-1/2 hours.  
Note: Each pin actuator is equivalent to 15 minutes. Do not run a defrost for more  
than 4 hours. May result in damage to seals.  
Figure 11  
Filling Freezer  
1) Open all product manual control valves.  
2) Set lower control box Power switch to "ON" and Sample Timer switch to "OFF" and Control Select switch  
to “Run". (Figure 10)  
3) Fill freezer with product  
a. Turn freezer to "CLEAN", barrel will fill  
b. When BIB pump stops switch freezer "OFF"  
c. Open dispensing relief valve vent and relieve pressure. Close vent.  
d. Repeat steps a-c until product reaches vent opening.  
4) Switch freezer to "FREEZE" and allow approximately 15 minutes for product to reach proper frozen consistency.  
NOTICE: For applications with extended periods between use (i.e. stadiums, arenas, special events) the freezer  
must remain in “FREEZE” mode at all times, with a programmed defrost cycle. Turning the freezer “OFF” or unplug-  
ging it with product in the cylinder can damage the seal, resulting in product leakage. If the freezer must be  
unplugged or turned “OFF”, for a period of time exceeding 12 hours, it must be drained, cleaned and sanitized.  
Contact a qualified service technician, such as ICEE Company, phone (800) 423-3872, to perform this service.  
Freezer damage resulting from failure to follow this procedure is not covered under warranty.  
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Cleaning  
NOTE: Before cleaning, all product should be drained from the freezing cylinder, pres-  
sure 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.  
4) Remove the O-Rings from the plunger assembly and back of the dispensing  
valve body.  
Figure 12  
NOTE: The best way to remove an O-Ring is to first wipe off all of the lubricant using a clean  
paper towel. Pinch the O-Ring upward with a dry towel between your index finger and thumb.  
When a loop is formed in the O-Ring, roll it out of the groove with your other thumb. Always  
remove the O-Ring farthest from the end of the plunger first. (Figure 13)  
5) Carefully inspect the O-Rings for wear, nicks or cracking and replace if necessary.  
6) Carefully pull out the auger assembly taking care to avoid damaging the rear seal  
assembly at the back of the freezing cylinder.  
7) Remove stationary portion of the shaft seal assembly (silicon carbide ring and rubber  
boot) from the back end of the freezer cylinder. This is accomplished by reaching into  
the cylinder and pulling the seal out with your index finger. (Figure 14)  
8) Slide the rotary seal off of the auger shaft. (Figure 15) Inspect both seal compo-  
nents carefully for nicks or cracks. Replace seal if defective. NOTE: To prevent  
leakage both surfaces of the seal must be smooth with no chips or cracks.  
9) Wash all components in a detergent solution, sanitize and allow to air dry.  
DO NOT WASH COMPONENTS IN A DISHWASHER.  
Figure 13  
10) Wet the inner rubber lip of the rotary portion of the seal and the back end of the  
auger shaft with water. Slide rotary portion of assembly onto the auger shaft, RUBBER  
Figure 14  
FIRST, with the smooth sealing surface facing toward the back of the auger.  
11) Insert the stationary portion of the seal into the grooved rubber boot with the  
polished surface facing out (forward), away from the rubber boot. Lubricate the  
grooved rubber exterior portion of the boot with silicone lube and insert it straight  
back into recess at the back of the freezing cylinder, RUBBER FIRST.  
NOTE: On the circular portion of the seal, make sure that the groove is toward the  
rubber (back of freezer).  
Figure 15  
12) Reassemble the dasher assembly, as shown in Fig.16. Insert the larger front and  
smaller rear white plastic bearings into dasher, then slip in the stator rod. Carefully  
and slowly guide the auger into the freezing cylinder taking care not to  
damage the seal assembly. Turn auger shaft until it engages the square drive coupling.  
13) Reassemble the dispensing valve assembly. (Fig. 12) Be sure to lubricate o-rings and relief vent  
before assembling.  
14) Thoroughly wash and sanitize all components. Inspect and lubricate  
all surfaces of the large O-Ring and refit it into the rear of the valve  
assembly. Install the valve assembly on the front studs and tighten knobs  
until they are finger tight. Do not use tools to tighten knobs.  
IMPORTANT: Failure to lubricate the large "O" Ring can result in product  
leakage.  
15) Reinstall the O-Rings on the plunger assembly and lubricate the O-Rings  
and plunger. Reassemble the valve and replace the retainer pin.  
Figure 16  
Daily Cleaning of Unit  
The exterior of the unit should be cleaned as needed, at the end of the operating day or during defrost cycle.  
Remember to empty and clean the drip tray and drip tray bracket.  
CAUTION: Course rags, abrasive cleaners, and excessive force can damage and/or destroy the surfaces of  
this unit.  
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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.  
1) Disconnect electrical power.  
2) Remove right side panel (facing freezer).  
Figure 17  
3) Use the adjustment screw located on the top, front of the drive motor mounting bracket to change product  
thickness. (See Figure 17).  
• Clockwise for thicker product consistency.  
• Counterclockwise for thinner product consistency.  
NOTE: It may require up to three 180° turns of this adjusting screw to see a noticeable change in product thickness.  
4) Turn freezer to "ON" and allow it to freeze to desired consistency.  
5) Wait 15 to 20 minutes, check product consistency (thickness) and repeat as needed.  
6) Reinstall the side panel and reconnect power.  
Mix Out Lights  
Red indicator lights, located on the front of the freezer, illuminate if the unit runs out of CO2, syrup, water or alcohol.  
When a light is on, the unit will not fill or freeze product.  
Freezer Controls  
NOTE: This dispenser has several power switches, that must be set in their operating position for the unit to operate  
properly.  
"ON/OFF/CLEAN" SWITCH  
The "ON/OFF/CLEAN" switch is a three-position toggle switch located on the front of the freezer. The left (facing the  
machine) position is the "ON" or freeze position. The middle position is the "OFF" position. The Right position is the  
"CLEAN" position (the auger is turning but the compressor is off).  
Lower Base Control Panel Switches  
All of the following switches are located on the lower control box, inside the rear cabinet door. (See Addendum 2 at  
the back of the manual)  
Power Switch  
This is the unit’s main power switch.  
On - power is supplied to the base unit.  
Off - No power is supplied to the base unit.  
Control Switch  
This switch determines whether the unit is in the test mode or operating mode.  
Test - The Test switch is used to check the BRIX of the product allowing the Timer Switch to control  
the solenoids.  
Off - Turns off the product feed system.  
Run - Allows product to be automatically fed to the freezer.  
Timer Switch  
On - Activates the 10 second timer use to test BRIX and mix ratios  
Off - Timer is de-activated (normal operating setting).  
Faceplate Relief Valves  
A spring-loaded pressure relief valve maintains a safe pressure in the freezing cylinder. When filling the cylinder the  
relief valve acts as a vent to allow the CO2 and air trapped in the freezing cylinder to escape. Venting the freezing  
cylinder is essential to obtain proper overrun. The vent is also used to break a vacuum when draining a unit.  
Dispensing Valve  
CAUTION: The product in the freezing cylinder is under pressure, open the dispensing valve slowly when  
dispensing product.  
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Product Quality  
BRIX  
Correct BRIX effects product flavor and freezing characteristics. Frozen product with low BRIX may have a weak fla-  
vor, 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. High alcohol also suppress-  
es the syrups ability to absorb CO2 and depresses the temperature of the frozen product. Too much alcohol will also  
lower product overrun.  
What Is Overrun?  
Overrun is the increase in product volume, expressed as a percentage, resulting from the carbonation of the water.  
The freezer chamber is pressurized, which holds the carbonation in the frozen product. The carbonation causes the  
volume of the frozen product to increase when dispensed. For example, if one gallon (4.4 liters) of liquid mix is fed  
into a freezing cylinder and one and a half gallons (6.6 liters) of frozen product is drawn out, the result is a fifty per-  
cent volumetric increase, or a fifty percent (50%) "overrun".  
Why is overrun important? The introduction of CO2 into the finished frozen product is essential from two stand-  
points...taste and profitability. Frozen product that has a low percentage of overrun costs more to serve, appears  
wet, and is heavy. The introduction of CO2 makes the finished frozen product taste richer. Too much overrun causes  
the finished frozen product to be too light and fluffy, making it less satisfying and adversely effecting sales.  
Factors Effecting Overrun  
Syrups  
The foaming agent in the syrup increases the ability of the frozen product to expand as it is dispensed.  
Frozen Product Draw Rate Effects Overrun  
Infrequent frozen product usage can result in a drink that may appear wetter and have less overrun.  
Carbonation In The Water Effects Overrun.  
There is a direct correlation between the level of carbonation of the water and the overrun of the frozen drink. Water  
quality has a direct effect on carbonation. If it is difficult to achieve adequate overrun an activated carbon filter will  
have to be added to the system. Also try readjusting the carbonator CO2 pressure.  
Computing Overrun  
1)  
2)  
3)  
Weigh an empty cup.  
Weigh this cup filled to the rim with liquid mix, and subtract the weight of the cup.  
Draw a heaping cup of frozen product that contains no air pockets. Avoid tapping the cup as this artificially  
reduces overrun.  
4)  
5)  
Use a straight edge to scrape off excess product flush with the rim of the cup and weigh the cup.  
Subtract the cup weight and use the overrun formula to determine overrun.  
Weight of  
Liquid Mix  
Weight of  
Frozen Product  
X 100 = OVERRUN  
Weight of Frozen Mix Product  
For Example:  
If a full cup of liquid mix weighs 23 ounces (.652kg) and a full cup of frozen product weighs 15 ½ ounces (.439kg),  
then:  
23 - 15½ X 100 = 48.4% Overrun  
15½  
Crathco Beverage Freezers  
Page 11  
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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.  
4) Insure that the "ON/OFF/CLEAN" switch on the front of the freezer is in the "ON" position.  
5) Allow the freezer sufficient time to reach desired product consistency (compressor will shut off).  
6) Slowly open the dispensing valve to dispense frozen product.  
7) If frozen product consistency is not correct, readjust following the instructions found in the PRODUCT  
CONSISTENCY section of this manual.  
Replenishing Syrup Supply  
A vacuum transfer valve will automatically switch from an empty BIB container to a full one. Check BIB containers on  
a regular basis and replace empty BIB following the procedure in the CONNECTING SYRUP SUPPLY section of this  
manual.  
Replenishing CO2 Supply  
1) Open rear cabinet door.  
2) Turn CO2 cylinder valve clockwise until it is fully sealed.  
3) Detach Regulator assembly.  
CAUTION: Remove connector slowly to relieve pressure build-up in the lines.  
4) Unhook S-hook from safety chain.  
5) Remove empty CO2 cylinder.  
6) Slowly crack the valve on the new CO2 cylinder to blow any debris out of the valve.  
7) Close the valve.  
8) Place new CO2 cylinder in the place of the used CO2 cylinder.  
9) Make sure that the CO2 regulator assembly coupling nut gasket is undamaged.  
10) Attach the regulator hose on the new CO2 cylinder.  
CAUTION: The CO2 lines need to be pressurized slowly to insure they are not damaged. Open the tank shut off  
valve slowly until it is fully open. NOTE: Opening the valve all the way prevents leakage around the valve shaft.  
Replenishing Alcohol Supply  
1) Remove empty alcohol bottles.  
2) Remove white tubular adapters from bottles.  
3) Remove caps from new bottles and slide white plastic adapter over the neck until the bottle seats itself against  
the shoulder of the adapter.  
4) Bend the nozzle of the white plastic adapter over with your forefinger to stop liquor flow.  
5) Insert the nozzle of the white plastic adapter into the reservoir port and allow adapter to drop into the reservoir  
opening.  
6) Stand inverted bottle upright.  
7) Loosen the thumbscrew on the hold-down bracket and slide the hold-down bracket until it is centered on the  
bottom of the bottle.  
8) Push down on bracket until it firmly holds the bottle in place…tighten the knob.  
9) Repeat for each bottle  
Note: If you are using partially empty bottles place the emptiest bottle at the end of the reservoir farthest from the  
reservoir outlet tubing. This will allow the partially filled bottle to be emptied first.  
Page 12  
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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. Follow the above  
instructions.  
NOTE: Clean and sanitize the entire liquid system before and after storage.  
Routine Product System Sanitizing  
Note: During sanitizing, all "O" Rings and seals should be inspected for damage  
1)  
Drain product from freezing cylinder barrel  
a)  
b)  
c)  
d)  
e)  
f)  
Turn freezer switch to "CLEAN".  
Close manual syrup feed valve in back lower compartment of the cabinet.  
Close manual alcohol feed valve in back lower compartment of the cabinet.  
Place container under product dispensing valve, open dispensing valve handle.  
Continue to remove product until it starts to become semi-clear and has a liquid consistency.  
Close manual carbonated water feed valve in back lower compartment of the cabinet.  
Drain remaining product. If liquid flow stops before the freezing cylinder is empty pull vent (round  
ring) in valve block and break vacuum.  
g)  
2)  
Remove product from BIB supply lines  
a)  
b)  
c)  
d)  
e)  
f)  
With freezer in "CLEAN" mode, disconnect BIB connectors.  
Open manual syrup valve in back lower compartment of the cabinet.  
Place a container under test line and open test port manual valve.  
Turn the control switch in lower cabinet to "TEST".  
Turn test switch to "ON".  
Allow pump to operate until it stops.  
g)  
h)  
Move BIB connector to other BIB container and repeat steps (e) and (f) above.  
Install a cleaning connector to BIB connector that is indicated as active by the switch on the BIB  
vacuum transfer valve.  
i)  
j)  
k)  
l)  
Put line with connector into a container of clean water.  
Repeatedly cycle the "TEST" switch to "OFF" then to "ON" until the line is clear of syrup.  
Repeat process for alternate BIB hose starting at (g) above.  
When the syrup lines are clean close the manual syrup line valve.  
3)  
Remove product from Alcohol supply lines  
a)  
b)  
c)  
d)  
e)  
f)  
With freezer in "CLEAN" remove the alcohol bottles from storage rack.  
Open the manual alcohol valve in the back lower compartment of the cabinet.  
Place a container under test line and open manual test port valve.  
Move control switch in lower cabinet to "TEST". Turn test switch to "ON".  
Allow pump to operate until it stops or all alcohol is removed.  
Pour clean water into the alcohol rack reservoir .  
g)  
h)  
Cycle the test switch from "OFF" to "ON" until the line is clear of alcohol.  
When lines are clean close the manual valve on alcohol line.  
Complete the sanitizing procedure by following the steps in the Sanitizing & Starting Unit Section.  
Servicing Dispensing Valves, O-Rings, and Freeze Cylinder Drive Shaft/Seal Assemblies  
NOTE: Dispensing valve "O" Rings should be replaced every 120 days to correspond with quarterly preventative  
maintenance visits.  
The best technique for removing an "O" Ring is to first wipe off all of the lubricant using a clean paper towel. Pinch  
the "O" Ring upward with a dry towel between your finger and thumb. When a loop is formed in the "O" Ring, roll it  
out of the groove with your thumb. Always remove the "O" Ring farthest from the end of the plunger first. (See  
Figure 13)  
Crathco Beverage Freezers  
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Lubricating Plunger O-Rings  
1) Close syrup and alcohol manual control valves located in the back compartment of the lower cabinet.  
2) Place freezer in "CLEAN" position.  
3) Drain freeze cylinder while purging with carbonated water.  
4) Turn freezer control switch to the "OFF" position.  
5) Vent pressure and drain completely.  
6) Remove dispensing valve plunger.  
a)  
b)  
c)  
Remove valve handle retaining pin.  
Push plunger up and remove handle.  
Pull plunger down.  
7) Remove "O" Rings and clean "O" Ring grooves.  
8) Replace "O" Rings.  
9) Lubricate the "O" Rings on the plunger and the area inside of the clear plastic valve body where the plunger  
"O" Rings make contact with the valve body using silicone lubricant.  
10) Replace Plunger assembly.  
a)  
b)  
c)  
d)  
e)  
Place spring on top of plunger.  
Place plunger in valve body making sure that the handle opening faces forward.  
Push up on plunger and replace handle.  
Insert handle retaining pin.  
Sanitize unit following instructions in manual.  
11)  
Refill unit following instructions in manual.  
Note: Plunger o-rings, face plate quad ring, shaft seal set, motor belt, etc. should be replaced annually.  
Changing Back Lit Sign Merchandiser Bulb  
1) Remove the two screws, located on the top on either side of the sign.  
2) Lower the metal enclosure that frames the merchandiser insert.  
3) Pull merchandiser enclosure down and out.  
4) Replace bulb inside.  
5) Reassemble.  
Cleaning Condenser Coil  
1) Turn machine "OFF".  
2) Remove both freezer side panels.  
3) Place a wet towel on the inlet side of the condenser (right side facing front of freezer).  
4) Use compressed air to blow out condenser coils from the exhaust side of condenser coil (fan motor side).  
NOTE: Follow all health and safety standards.  
5) Replace side panels.  
Drive Belt Adjustment  
CAUTION: Unplug the machine before performing any adjustments.  
Check the belt tension quarterly. Proper belt tension is ½" deflection  
measured mid way between the drive and driven pulleys. If the deflection is  
more than ½" adjust the motor height to achieve proper tension using the  
following procedure:  
1) Unplug the unit and remove the side and rear panels.  
2) Locate the motor flange bearings (W0380009) located at each end of  
the drive motor. Two bearings support the motor, one on the shaft at  
each end of the motor. The bearings are secured to the motor cradle  
using two Allen bolts on each bearing.  
3) Loosen all four bearing Allen bolts. NOTE: Do not loosen the setscrews  
Figure 18  
that hold the bearing collars to the motor shaft.  
4) Lower or raise the motor as needed to achieve proper belt tension. The motor must be kept level from front  
to back. NOTE: Excessive belt wear and belt noise can occur if the motor is not kept level.  
5) Tighten all four Allen bolts down.  
6) Align the driven motor pulley with the top driven pulley if needed. Use a straight edge along the top pulley. If the  
pulleys are not in alignment, remove the setscrew from the pulley and move either in or out as needed.  
NOTE: Use non-permanent Loc-Tite on the driven pulley setscrew and tighten down on the flat of the motor shaft.  
Page 14  
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Parts Replacement Schedule  
Part Description  
Monthly  
Every  
3 Months  
Every  
6 Months  
Annually  
Quantities to  
be Replaced  
Drive shaft seal  
W0340210  
Inspect & replace  
if necessary  
Replace  
1
1
1
2
Drive shaft  
W0451067  
Inspect & replace  
if necessary  
Drive belts  
W0450209  
Scraper blades  
on dasher  
Inspect & replace  
if necessary  
Replace  
W1431084  
Square cut o-ring on  
valve body/face plate  
W0340055  
Inspect & replace  
if necessary  
1
Front stator flange  
bearing  
W0430032  
Inspect & replace  
if necessary  
1
1
Rear stator flange  
bearing  
Inspect & replace  
if necessary  
W0430024  
Dispense valve o-rings  
W0340022  
Dispense valve  
relief valve  
Replace  
3
1
Inspect & replace  
if necessary  
W0650429  
Inlet tube o-rings  
W0340011  
Inspect & replace  
if necessary  
2
1
6
Condenser  
W0200256  
Inspect & clean if  
necessary  
Alcohol Holder  
components  
Inspect & replace  
if necessary.  
Nozzle  
replacement  
90750 - knob  
90749 - clamp  
90748 - nozzle  
mandatory.  
Alcohol, syrup, &  
water solenoid 90863  
Inspect & replace  
if necessary  
3
Alcohol, syrup pump  
90729 and  
Inspect & replace 2 - CO2 Driven,  
if necessary  
1 - Electric  
Water pump 61290  
Alcohol rack  
Disassemble and  
sanitize  
Crathco Beverage Freezers  
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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  
Probable Cause  
Remedy  
Machine won’t run (no lights,  
not motor)  
• Machine not plugged into wall receptacle  
• Plug machine directly into outlet. Do not  
use extension cord.  
• Building circuit breaker tripped or fuse  
blown  
• Place circuit breaker in the ON  
position or replace fuse  
• Switches in wrong position  
• Turn lower panel Power Switch to ON,  
Control Switch to OFF and freezer switch  
to ON.  
Machine will not freeze  
• Dasher assembly not installed  
• Drive belt broken or off pulley  
• Inadequate airflow  
• Install dasher assembly  
• Repair or replace  
• Allow 6” (15cm) on both sides  
• Freezer in CLEAN position  
• Switch to ON  
• Mix low light on indicating an out of condition • Correct out of condition (syrup, water,  
alcohol, or CO2)  
• Condenser clogged  
• Clean condenser  
• Compressor not operating  
• Low refrigerant charge  
• Improper expansion valve setting  
• Defrost timer set  
• Check for cause and correct  
• Check for leaks, repair and recharge  
• Adjust within specifications  
• Wait for defrost cycle to end  
Product too soft (thin)  
Product too thick (firm)  
• Consistency adjuster too thin  
• Too much alcohol  
• Product BRIX level too high  
• Readjust consistency firmer  
• Readjust alcohol flow control  
• Check water and syrup flow controls for  
proper test volume  
• Consistency adjuster set too firm  
• Too little alcohol  
• Readjust consistency setting thinner  
• Increase product BRIX level and check  
product feed  
• Product BRIX level too low  
• Increase product BRIX level  
Product will not dispense  
Leakage from drip tube  
• Power switch OFF  
• MIX LOW light on  
• Drive belt broken or off pulley  
• Worn out or defective drive shaft seal  
• Worn or defective o-ring(s)  
• Turn power switch ON  
• Refill empty product  
• Repair or replace  
• Replace seal and then lubricate at each  
cleaning  
Excessive Dispensing Valve  
Leaks  
• Replace and lubricate at each cleaning  
Clicking sound from inside the  
machine  
• Low voltage  
• Extension cord is used  
• Use dedicated circuit with proper rating  
• Connect directly to power source or use  
power cord of proper size  
• Replace belt  
Thumping sound from inside the • Worn belt  
machine  
• Low alcohol content  
• Check mix  
Product does not feed  
• Low CO2 pressure  
• Check bottle and regulator  
• Replace pumps  
• Replace pumps  
• Replace transformer or reset transformer  
circuit breaker  
• Product pumps defective  
• Carbonator pump defective  
• Transformer defective or transformer  
overload tripped  
• Solenoids defective  
• Replace solenoids  
Premature seal wear  
• Incorrect installation of dasher  
• Improper drive shaft clearance  
• Advise careful installation  
• Adjust to proper clearance  
If you still need help, call an authorized dealer in your area or GCS’ Technical Service Department. You can reach  
Technical Service at (800) 425-4776 Monday-Friday, 8:00 AM-6:00 PM Eastern Standard Time. Please have the model and  
serial number ready so that accurate information can be given.  
Prior authorization must be obtained from Grindmaster Crathco Systems’ Technical Service Department for all  
warranty claims.  
Page 16  
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Addendum 1 - Complete Unit Exploded View  
1
11  
11  
11  
28  
25  
28  
10  
8
9
12  
14  
23  
16  
10  
24  
15  
ITEM  
1
2
4
5
6
7
8
9
10  
11  
12  
13  
14  
PART #  
W0150590  
00800  
DESCRIPTION  
Stock Assembly  
Serial Label  
ITEM  
15  
16  
17  
18  
19  
21  
22  
23  
24  
25  
26  
27  
28  
29  
PART #  
W0630711  
W0650429  
W0631238  
W0610574  
W0611074  
W0611242  
86823  
W0430024  
W0430028  
W0430032  
60832  
DESCRIPTION  
D-Knob, w/ 5/15-18 Female Threads  
Pressure Relief Valve, Modified  
Spring, Extension Yellow  
1/4-20 Hex Head Cap Screw  
1/4-20 Hex Nut  
W0800120  
W0800121  
W0800122  
W0800124  
W0340210  
W0430089  
W1431084  
W0890235  
W0340055  
W0610133  
W0480460  
Base Board Assembly  
Shipping Box  
L-Block  
Flat Washer  
1/4 Lock Washer  
Foam Top Carton Pad  
Coconut Oil Seal  
Scraper Dasher  
Scraper Blade  
Kit, Panel Black  
O-ring, Valve Body  
Panel Screws  
Stator Flange Bearing (Rear)  
Stator Weldment  
Stator Flange Bearing (Front)  
Bushing, Heyco 1” Snap  
Patent Pending Label  
90822  
90719  
W0660058  
Cart, Carbonated Alcohol Injected  
Plastic Shipping Bag  
Body, Valve Pressure  
Crathco Beverage Freezers  
Page 17  
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Addendum 2 - Base Cabinet  
Regulators  
POWER  
OFF  
SAMPLETIMER  
OFF ON  
CONTROL SELECT  
RUN  
ON  
TEST  
OFF  
Alcohol Valve/Control  
Syrup Valve/Control  
Test Port  
Water Valve/Control  
Carbonator  
Water Pump  
Page 18  
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28  
27  
29  
64  
62  
59  
63  
57  
35  
31  
60  
58  
62  
Addendum 3 - Electrical Connections in Lower Cabinet  
Addendum 5 - Electrical Connections  
Cabinet to Freezer  
Addendum 4 - Electrical Connections in  
Lower Cabinet  
Crathco Beverage Freezers  
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Addendum 6 - 6321 Base Cabinet Electrical Schematic  
28  
27  
29  
64  
63  
60  
57  
35  
31  
59  
62  
58  
30  
19  
15  
21  
14  
33  
34  
20  
64  
18  
30  
23  
30  
27  
32 62  
32  
24  
21  
62  
59  
24  
45  
32  
29  
17  
16  
22  
23  
24  
25  
33  
28  
25  
63  
61  
13  
37  
18  
38  
39  
33  
17  
34  
16  
15  
26  
14  
13  
36  
12  
40  
11  
57  
35  
31  
7
60  
10  
58  
7
9
6
8
44  
62  
43  
8
42  
42  
41  
ITEM  
30  
PART NUMBER  
DESCRIPTION  
W0570045  
BALLAST  
61  
TERMINAL BLOCK  
TIMER  
W0570235  
90811  
32  
33  
61847  
61847  
POWER SWITCH  
TIMER SWITCH  
34  
45  
36  
W0570924  
SWITCH  
COMES WITH  
CARBONATOR  
90834  
FLOAT SWITCH  
37  
38  
39  
40  
41  
42  
43  
44  
PUMP  
W0570044  
W0570043  
90857  
LIGHT SOCKET  
LIGHT BULB  
SYRUP AND ALCOHOL SOLENOIDS  
SOLD OUT SWITCH  
W0650415  
W0650400  
90858  
BARKSDALE PRESS. SWITCH # MSPS-JJ100SS-F  
WATER SOLENOID  
90879  
ALCOHOL FLOAT SWITCH  
Page 20  
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Addendum 7 - 6321L-A Ladder Diagram  
Crathco Beverage Freezers  
Page 21  
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Addendum 8 - 6321 Freezer Electrical Schematic  
75  
14  
63  
74  
69  
69  
19  
18  
1
40  
76  
58  
25  
37  
38  
1
6
64  
13  
10  
24  
2
3
9
36  
12  
21  
10  
2
41  
39  
19  
50  
23  
22  
27 33  
12  
11  
26  
5
27  
13  
18  
49 26  
4
5
11  
3
32 68  
15 25  
29 28  
9
69  
28  
30  
48  
8
74  
55  
55  
8
31  
35  
17  
16  
30  
73  
33  
45  
34  
34  
66  
65  
23  
21 22  
55  
55  
57  
77  
32  
49 50  
47  
46  
20  
16  
15  
20  
54  
53  
24  
77  
76  
75  
17  
59  
61  
6
16  
60  
70  
14  
62  
31  
28  
59  
35  
57  
60  
29  
27  
64  
63  
58  
62  
ITEM  
LENGTH  
DESCRIPTION  
ITEM  
LENGTH  
DESCRIPTION  
72  
71  
70  
69  
67  
56  
55  
54  
53  
52  
51  
48  
47  
W0570662  
W0570661  
W0570682  
W0570242  
60110  
60034  
60033  
85303  
W0650407  
W0650121  
W0650011  
W0570924  
RELAY SOCKET  
RELAY  
TIMER  
SPLICE CAPS  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
W0570044  
W0570045  
W0630801  
W0572050  
W0572192  
W0570604  
W0570603  
W0570235  
W0570651  
W0570656  
W0570638  
LIGHT SOCKET  
CORE & COIL BALLAST  
TIE WRAPS  
POWER CORD  
PIGGYBACK TERMINAL  
LIGHT, AMBER  
LIGHT, RED  
RELAY  
PRESSURE SWITCH  
LOW PRESSURE SWITCH  
SOLENOID VALVE  
SWITCH  
LOW MIX SUB-ASSY  
RUN CAPACITOR  
START CAPACITOR  
TERMINAL BLOCK  
TIME DELAY RELAY  
TRANSFORMER  
COMPRESSOR RELAY  
W0570043 FLUORESCENT LIGHT BULB  
Page 22  
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Addendum 9 - Product Flow Schematic  
Crathco Beverage Freezers  
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Addendum 10 - 6321 Base Cabinet Panels Exploded View  
ITEM PART NO.  
DESCRIPTION  
PANEL, BOTTOM ASSY, BASE CART  
PANEL ASSY, INTERIOR, BASE CART  
ALCOHOL HOLDER  
ITEM PART NO.  
16 W0570272  
17 W0660060  
18 W0631809  
19 W0631810  
20 W0600031  
DESCRIPTION  
TERM, RING EYE (NOT SHOWN)  
BAG, PLASTIC, 12 X 10  
1
2
90780  
90727  
90746  
90827  
90724  
90829  
90830  
90831  
90728  
86600  
07348-1  
62486  
VELCRO, HOOK  
3
VELCRO, LOOP  
4
TOP PANEL ASSY  
LABEL, SERVICE, ICEE  
LOOSE SHIPPED PARTS KIT (NOT SHOWN)  
5
RIGHT SIDE PANEL ASSY  
LEFT PANEL ASSY  
21  
90847  
6
7
DOOR ASSY  
22  
23  
24  
00800  
90818  
82085  
LABEL, SERIAL NUMBER, NAME PLATE  
MANUAL, SERVICE, 6321L  
8-32 UNF S.S. ACORN NUT  
PEM STUD, 8-32 X 3/8”  
8
REAR DOOR ASSY  
9
PLASTIC COSMETIC COVER  
TIE, WIRE, NYLON, T18R (NOT SHOWN)  
POP RIVET  
25 W0610923  
10  
11  
12  
26  
61339  
8-32 UNF S.S. ACORN NUT  
DECAL, GCS LOGO - 4 X 1.25  
27  
28  
60593  
60550  
CLAMP, 1/2 STEPLESS  
CLAMP, 11/16 STEPLESS  
13 W0570205 TERM, 2-520103-2.250 FASTON- (NOT SHOWN)  
14 W0570207 TERM, FASTON 16-14 GA FULLY (NOT SHOWN)  
29 W1631510  
WIRE TIE HOLDER  
30 W1631508 SADDLE WIRE, ALL STATES (NOT SHOWN)  
15 W0570242  
SPLICE CAP, INSULATED (NOT SHOWN)  
Page 24  
Crathco Beverage Freezers  
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Addendum 11 - 6321 Base Cabinet Exploded Parts View  
Crathco Beverage Freezers  
Page 25  
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6321 Cabinet Exploded Parts View  
ITEM  
1
PART NO.  
90726  
DESCRIPTION  
PANEL, INTERIOR-BASE CART  
2
90729  
SYRUP PUMP  
3
4
5
6
7
8
9
90730  
90875  
W0620283  
90857  
90858  
FITTING, SHURFLO TO 3/8” JOHN GUEST  
SWITCH, PRESSURE, BARKSDALE-40 PSI  
ADAPTER, 1/8” FPT X 3/8” STEM  
VALVE, FLOMATIC 424 DUAL SYRUP PISTONS (P/N 407-CSY-D22)  
VALVE, FLOMATIC 424 SINGLE SODA PISTON AND PLUG (P/N 407-CF-D22-R)  
FLOMATIC VALVE MNT BLOCK 380 Q  
FITTING, 3/8 PLUG-IN ELBOW  
90855  
90854  
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  
90859  
90860  
90758  
90767  
W0340120  
90763  
90764  
W0620282  
W0650123  
90733-3.000  
90733-8.0  
90733-3.375  
90733-2.0  
60591-10.00  
60591-2.25  
90869  
90868  
60593  
90743  
90813  
90781  
90745  
90733-10  
90770  
61153-10  
61153-42  
60550  
82085  
90824  
90825  
90826  
FLOMATIC VALVE MNT BRACKET  
FITTING, MALE CONNECT-1/4” X 1/4” MFL (JG# PIO108F4S)  
CHECK VALVE  
FTG, 1/4 SAE X 3/8 JG# PI4512F4S  
RUBBER GROMMET  
FITTING, 3/8” ELL JG# 1032-S  
FITTING, 3/8 PLUG-IN ELBOW  
TEE, 3/8 X 3/8 X 3/8 TUBE  
CHECK VALVE, JG  
TUBING, LOW DENSITY POLYETHYLENE 3”  
TUBING, LOW DENSITY POLYETHYLENE 8”  
TUBING, LOW DENSITY POLYETHYLENE 4”  
TUBING, LOW DENSITY POLYETHYLENE 2”  
TUBING, 1/4” BRAIDED 10.00”  
TUBING, 1/4” BRAIDED 2.250”  
FITTING, 1/4” X 1/4” X 1/4” BARB TEE  
FITTING, 1/4” X 1/4” ELL BARB, CHUDNOW (P/NS29-M44U)  
CLAMP, 1/2 STEPLESS  
VALVE, AUTOMATIC, BIB, SELECTOR  
BRKT, BIB SELECTOR SWITCH  
SCREW, #4 X 1/4 SM,P (MNTG ITEM #33 - NOT SHOWN)  
VALVE, 3/8 JG# PSV0412CS  
TUBING, LOW DENSITY POLYETHYLENE - 10.0”  
SUPPORT, 90 TURN JOHN GUEST # PM2610S  
BRAIDED TUBING, 10.0”  
BRAIDED TUBING, 42.0”  
CLAMP, 11/16 STEPLESS  
8-32 UNF S.S. ACORN NUT  
DECAL, ALCOHOL  
DECAL, SYRUP  
DECAL, CARBONATED WATER  
SOLENOID, DUAL CONTROL (FLOMATIC P/N 770-D22) (NOT SHOWN) SPARE PARTS  
8-32 X 7/8” PH PN BLK SCREW  
90863  
61288  
90885  
90886  
HEYCO BUSHING, BACK (P/N 2853)  
INSERT, TAMPER PROOF (FLOMATIC P/N 1025) - NOT SHOWN  
TUBING, LOW DENSITY POLYETHYLENE 2.50”  
TUBING, LOW DENSITY POLYETHYLENE 4.00”  
BRAIDED TUBING, 26.0”  
90733-2.500  
90733-4.000  
61153-26  
61153-28  
90774  
BRAIDED TUBING, 28.0”  
FITTINGS, BIB COKE  
DECAL, INDEMNITY CLAUSE  
LABEL, WARNING, TAMPERING  
W0600013  
W0600035  
Page 26  
Crathco Beverage Freezers  
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Addendum 12 - Rack Exploded View  
ITEM NO.  
PART NO.  
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  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
90751  
90752  
90794  
61153  
60550  
90802  
90850  
90799  
90800  
07023-04  
90747  
90877  
60012  
90748  
90749  
90750  
90878  
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. ACORN NUT  
DRAWER SLIDE, LEFT (NOT SHOWN)  
DRAWER SLIDE, RIGHT (NOT SHOWN)  
SCREW, 6-32 X 1/4” PH BD M/S - S.S. (NOT SHOWN)  
BERG ALCOHOL HOLDER ASSY  
ASSY, 3 BOTTLE RESERVE WITH FLOAT SWITCH-MODEL #8000200  
1/4-20 X 1/2” ROUND HEAD  
RESERVE NOZZLE  
ADJUSTABLE BOTTLE CLAMP  
THUMBSCREW, ADJUSTABLE BOTTLE CLAMP  
WASHER, #10, LOCK, INTERNAL, NOT SHOWN - SHIP LOOSE  
Crathco Beverage Freezers  
Page 27  
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Addendum 13 - 6321 Cabinet Base Exploded View  
Page 28  
Crathco Beverage Freezers  
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6321 Cabinet Base Exploded View Key  
ITEM  
1
2
3
4
5
6
7
8
PART NO.  
90723  
DESCRIPTION  
PANEL, BOTTOM-BASE CART  
CASTER, RIGID-TWIN BASE CART  
CASTER, SWIVEL-TWIN BASE CART  
NUT, 5/16-18 HEX ZINC  
W0630900  
W0630898  
W0611086  
W0611255  
W0650415  
90873  
WASHER, 5/16 LOCK  
SWITCH, SOLD OUT, 8-30 PSI  
ANCHOR COUPLING PARKER P/N 207ACBH-4  
MALE ELBOW PARKER P/N 149F-4-4  
ADAPTER, 1/4 NPT X 3/8 STEM  
TEE, 3/8 X 3/8 X 3/8 TUBE  
POLYETHYLENE TUBING, 23.250”  
FITTING, 3/8 MPT X 3/8 MPT JG#P14812235  
CARBONATOR, PUMP SHURFLO  
3/8 MPT X 3/8 SAE, BRASS  
NUT, 8-32 NYLON INSERT ZINC  
WASHER, 3/16 SAE FLAT, 7/32 ID  
SUPPORT, 90 TURN JOHN GUEST # PM2610S  
POWER CORD, 14/3, #02-520,11’  
STRAIN RELIEF, HEYCO  
90874  
9
W0620278  
W0620282  
90733-23.250  
90776  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
61290  
90786  
W0611042  
W0611235  
90770  
W0570105  
61479  
82085  
90761  
90777  
71237  
61153-6  
60550  
60591  
60593  
90782  
60797  
90783  
83759  
W0631008  
8-32 UNF S.S. ACORN NUT  
TANK RETAINER ASSY  
CARBONATOR, McCANN STANDARD NEW PROBE  
FITTING, 1/4” BARB X 1/4” FF SWVL  
BRAIDED TUBING 6.0”  
CLAMP, 11/16 STEPLESS  
TUBING, 1/4” BRAIDED, 14 3/4”  
CLAMP, 1/2 STEPLESS  
FTG, 3/8 SAE X 3/8 JG # PI4512F5S  
GASKET, 1/4 COPR FLARE 45 DEG  
FITTING, 3/8 TUBE X 3/8 SAE ELL  
10-32 RIVNUT  
WASHER, BONDED NEOPRENE  
Crathco Beverage Freezers  
Page 29  
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Addendum 14 - 6321 Base Cart Top Panel Exploded View  
ITEM PART NO.  
DESCRIPTION  
1
2
3
4
5
6
7
8
90722  
90840  
W0570043  
W0570044  
90835  
90807  
90810  
90836  
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)  
11  
12  
90850  
90812  
6-32 UNF S.S. ACORN NUT  
PROTECTIVE LIGHT COVER  
Page 30  
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Addendum 15 - 6321 Front Cabinet Door  
ITEM  
PART NO.  
90721  
DESCRIPTION  
DOOR, FRONT-BASE CART  
DOOR HINGE, STANDARD DUTY  
PEM STUD, 8-32 X 3/8”  
8-32 UNF S.S. ACORN NUT  
INSERT, OVAL  
1
2
3
4
5
90851  
W0610923  
61339  
90760  
6
7
90870  
90871  
TAPE, 3/64 X 1/2, DBL CTD NEOPRENE  
PAWL/CAM LATCH-SOUTHCO P/N 24-20-812-35  
Crathco Beverage Freezers  
Page 31  
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Addendum 16 - Rear Door and Key  
3
2
4
1
5
ITEM NO.  
PART NO.  
90720  
W0610921  
61339  
90851  
90771  
DESCRIPTION  
DOOR, REAR-BASE CART  
PEM STUD, 8-32 X 1/4”  
1
2
3
4
5
8-32 UNF S.S. ACORN NUT  
DOOR HINGE, STANDARD DUTY  
LOCK, DOOR-REAR  
Page 32  
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Addendum 17 - Freezer Exploded View  
110  
160  
10  
30  
40  
A
130  
150  
150  
60  
150  
170  
170  
170  
170  
160  
80  
150  
160  
140  
ITEM  
10  
20  
30  
40  
50  
60  
70  
80  
PART #  
DESCRIPTION  
5/16-18 x 3/4 Hex Hd Cap Screw  
5/16 Flat Washer  
ITEM  
A
B
C
D
E
G
H
I
J
K
L
M
N
O
P
Q
R
S
SOLDER CONNECTIONS  
To suction line, Item G  
From Item “B” to Item “E”  
To TXV Item “K”  
W0610682  
W0611254  
W0611255  
W0611086  
W0201191  
W0620103  
W0650119  
W0110013  
W0611085  
W0201192  
W0450053  
W0610646  
W0450209  
W0600029  
71373  
5/16 Split Lock Washer  
5/16-18 Hex Nut Z/P  
Suction Line Pressure  
3/8 Copper Couple  
Connects Items “F”, “M” & “S”  
Connects Items “B” & “L”  
Connects to Item “J”  
Connects to Item “R”  
Connects to Item “N”  
Connects to Item “G”  
Connects to Item “C”  
Connects to Item “E”  
Connects to Item “D”  
Connects to Item “I”  
Thermostatic Expansion Valve  
Valve Studs  
90  
5/16-18 SS Hex Nuts  
Air Baffle Side Piece  
10” Pulley  
100  
110  
120  
130  
140  
150  
160  
170  
180  
190  
200  
210  
5/16-18 x 3/8 Socket Hd Set SC  
V-Belt  
Motor Serial Plate  
Connects to Item “A”  
Connects to Item “Q”  
Connects to Item “P”  
Connects to Item “H”  
Connects to Item “D”  
Nylon Screw Anchor  
Trim-Lok Rubber Strip  
Indicator Light  
W0670008  
W0570018  
W0600230  
W0620106  
W0201008  
W0201006  
On-Off-Clean Label  
Tee, 1/2 x 3/8 x 3/8 Copper  
Low Side Process Tube  
High Side Process Tube  
Crathco Beverage Freezers  
Page 33  
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Addendum 18 - Freezer Base Exploded View  
ITEM  
1
Part #  
Description  
Compressor Assembly  
Condenser Assembly  
Fan Sub-Assembly  
Drive Motor Assy.  
Base Pan Assy.  
W0201001  
W0201000  
W0320129  
W0321026  
W0210106  
W0611410  
W0611247  
W0611074  
W0611082  
W0200412  
W0200413  
W0210104  
2
3
4
5
6
Rivet, Magna-Lok  
1/4 Int. Tooth Lk. Wshr.  
1/4-20 Hex Nuts  
7
8
9
5/16-18 Flange Nut  
Compressor Spacer  
Compressor Grommet  
Frame Assembly  
10  
11  
12  
Page 34  
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Addendum 19 - Freezer Electrical Box Exploded View  
20  
23  
20  
13  
14  
16  
20  
20  
11  
7
3
1
22  
2
19  
3
19  
3
4
4
3
10  
10  
21  
21  
5
21  
8
6
9
ITEM  
1
2
3
4
5
6
7
8
PART #  
W0570603  
W0570617  
W0630006  
W0630811  
W0570638  
W0572409  
W0570656  
W0570235  
W0570660  
W0570600  
W0570682  
W0572407  
W0572408  
86805  
W0610131  
61532  
86600  
W0572530  
83248  
W0610127  
71373  
DESCRIPTION  
Start Capacitor  
Run Capacitor  
Heyco Bushing  
Clip, Capacitor (small)  
Compressor Relay  
Relay Bracket  
Transformer 4000-01515K999  
Terminal Block  
Heat Sequencer, Products Unlimited  
Relay  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
Timer  
Electrical Box  
Electrical Box Cover  
6-32 x 1 Screw  
8-32 x 1-4 Screw  
6-32 Nylon Lock Nuts  
Cable Tie  
Wire Harness  
6-32 x 1/4 Screw  
#8 Type AB Point S.S. Truss HDNylon Screw Anchor  
#8 Nylon Screw Anchor  
W0570242  
W0600218  
W0572390SH2  
Closed End Splice Cap, AMP #55929-1  
Risk of Electrical Shock Label  
Elec. Wiring Ref. Drawing 6321 L  
Crathco Beverage Freezers  
Page 35  
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Addendum 20 - Product Feed Components Exploded View  
ITEM  
1
PART #  
W0340011  
W0471115  
W0471118  
W0650400  
60552  
DESCRIPTION  
#115 O-ring (Carburetor)  
Pressure Inlet Fill  
2
3
Pressure Inlet Fill Retainer  
Press Switch MSPS - JJ100SS-F  
Accumulator  
4
5
6
W0620282  
W0620285  
W0620280  
90763  
Tee, 3/8 Tube John Guest  
3/8 NPT x 3/8 NPT Stem J/G  
Adapter, 1/2 NPT x 3/8 Tube  
Elbow, 3/8 Tube x 3/8 Tube  
Elbow, 3/8 Stem x 3/8 Stem  
Tubing, LDPET, .250ID x .375OD  
1/8 NPT x 3/8 J/G Stem  
7
8
9
10  
11  
12  
13  
14  
15  
90764  
90733  
W0620283  
90733  
Tubing, LDPET, .250ID x .375OD  
Tubing, LDPET, .250ID x 375OD  
8-32 x 1/4 Self Tap Screw  
90733  
W0610131  
Page 36  
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Addendum 21 - Refrigeration Components  
ITEM  
Part #  
Description  
1
2
3
4
5
6
7
W0650501  
W0650112  
W0201191  
W0200123  
W0200256  
W0201009  
W0650119  
Access Valve  
Filter Drier  
Suction Line  
Compressor  
Condenser  
Hot Gas Line  
Thermostatic  
Expansion Valve  
Evaporator Line  
8
9
Suction Line  
1/4” Street Elbow  
1/4” Tee  
10  
11  
12  
13  
14  
15  
16  
17  
W0620105  
W0620102  
W0201011  
W0201012  
W0201013  
W0620112  
Coolant Line  
Coolant Line  
Coolant Line  
3/8” Copper Elbow  
W0201153 90 Deg. Bell Reducer  
W0201151  
3/8” Condenser  
Connection  
18  
W0620103  
3/8” Coupling  
Crathco Beverage Freezers  
Page 37  
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Addendum 22 - Refrigeration Schematic  
Page 38  
Crathco Beverage Freezers  
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NOTES  
Crathco Beverage Freezers  
Page 39  
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Cocktail Machine Indemnity  
The Purchaser and/or Lessee hereby releases the manufacturer of this machine, Grindmaster Crathco Systems, Inc.  
(the Company), any and all alcohol and non-alcohol product companies, the Company’s officers, agents, employees,  
directors, shareholders, affiliates, successors, and assigns, and shall indemnify and hold them wholly harmless from,  
any and all claims, actions, suits, proceedings, demands, damages, costs, expenses, and liabilities of whatever  
nature, including without limitation Company’s reasonable attorneys’ fees and expenses, relating to or in any way  
arising out of operation or dispensing of beverages from this machine.  
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