Beverage Freezer
Operator Manual
Model 3511
Grindmaster-Cecilware
4003 Collins Lane, Louisville, KY 40245 USA
Phone: 502.425.4776 Toll Free: 800.695.4500
Fax: 502.425.4664
Web: gmcw.com Email: info@gmcw.com
Model 3511
Safety Information .....................................2
Specifications..............................................3
General Information ..................................4
Installation..................................................5
Accessory Installation .................................6
Operation and Adjustments ......................8
Cleaning and Maintenance........................9
Troubleshooting .......................................17
Parts Identification...................................18
Parts Diagram and List .............................19
Wiring Diagram........................................23
Refrigeration Diagram .............................27
Thank you for purchasing this quality beverage freezer. For your safety and the safety of others, read all
warnings and the operator manual before installing or using the product. Properly instruct all operators.
Keep training records. For future reference, record serial number here:
Table of Contents
©2016 Grindmaster-Cecilware
Printed in USA
0516 Form # WH-305-04
Part # 390-00060
Grindmaster-Cecilware provides the
industry’s BEST warranty. Visit gmcw.com
for warranty terms and conditions.
2 Crathco
®
Model 3511 Beverage Freezer
Safety Information
Important Safety Information
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
For your safety and the safety of others, read all warnings and the operator manual before installing or using the
product.
DANGER: This term warns the user of imminent hazard that will result in serious injury or death.
WARNING: This term refers to a potential hazard or unsafe practice, which could result in serious injury or
death.
CAUTION: This term refers to a potential hazard or unsafe practice, which could result in minor or moderate
injury.
NOTICE: This term refers to information that needs special attention or must be fully understood.
WARNING
• Product must be attached to a three wire 120V 20 AMP receptacle (export units - 230V 15 AMP).
• Do not deform plug or cord.
• Follow national and local electrical codes.
• Do not use near combustibles.
• Use only on a circuit load that is properly protected and capable of the rated load.
• Always unplug unit from power supply before servicing or cleaning.
• Note all warning labels on the freezer. If any warning labels are missing or damaged, replace them
immediately.
• Risk of electrical shock. Disconnect power before servicing unit. Do not attempt any repairs unless the
main power supply to the freezer has been disconnected. Contact Grindmaster-Cecilware Technical Service
for service assistance.
FAILURE TO COMPLY RISKS PERSONAL INJURY, SHOCK HAZARD, FIRE, OR DAMAGE TO EQUIPMENT.
CAUTION
• Hazardous moving parts. Do not operate unit with panels removed.
• Do not put objects or fingers in the dispense plunger.
• Read and understand the operating instructions in this manual thoroughly. Only allow properly trained
persons to operate this machine.
• While operating, servicing, or cleaning, do not wear loose fitting garments or jewelry that could get caught
in the machine and cause a serious accident.
• Stay alert at all times during operation.
• Beverage freezers are heavy pieces of equipment. It is recommended that moving or lifting the unit be
done by two people to avoid injury.
NOTICE
• Never connect to an overloaded circuit or to an extension cord, otherwise serious damage to the motor
may result.
• Do not operate freezer if any excessive noise or vibration occurs. Contact Grindmaster-Cecilware Technical
Service for service assistance.
• Be certain machine is installed with adequate space for proper air circulation. (See installation section.)
Failure to provide sufficient ventilation will reduce freezer performance and void equipment warranty.
• Keep operating area clean.
Model 3511 Beverage Freezer Crathco
®
3
Specifications
Standard 3511
Dimensions 26-1/2”H x 13”W x 29”D
(H x W x D) 67 cm x 33 cm x 74 cm
(includes header box)
Electrical 220V / 60Hz / 1 PH
Dedicated 20 Amp circuit
Circuit NEMA 5-20R
Drive Motor 1/2 hp, Capacitor Start
Compressor 1 hp
Cooling Air-cooled
Actual Weight 175 lbs (79.4 kg)
Mix Hopper Capacity 5 gallons (18.9 liters)
Freezing Cylinder Capacity 1-1/2 gallons (5.7 liters)
Refrigerant See Serial Number Plate
Refrigerant Charge See Serial Number Plate
High Side (operating pressure) Approx. 275-350 psi
Low Side Factory set @ 31 psi (30-35)
4 Crathco
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Model 3511 Beverage Freezer
General Information
Freezer Application and Specifications
Model 3511
The freezer consists of a freezing cylinders, with a
rotating internal auger (dasher) that is belt-driven by
an electric motor. The auger scrapes frozen product off
of the inside of the refrigerated cylinder. A torque
sensing mechanism controls compressor operation to
maintain desired product consistency. The freezer
utilizes either an air-cooled or water-cooled
refrigeration system to freeze the product. A selfclosing dispensing valve is attached to the front of the
freezing cylinder. The unit has an adjustable consistency
control and an out of product indicator.
When properly operated and cared for, the Model 3511
will provide many years of service. Proper care includes
regular cleaning and maintenance. To minimize the
amount of maintenance necessary, follow the operating
procedures outlined in this manual.
Product Tips
The Model 3511 was designed to dispense a wide
variety of frozen beverages including frozen fruit juice,
frozen lemonade, slush, and frozen cocktails. These
products can be served in consistencies ranging from
thin to fairly thick.
Two types of dispensing valve plungers and product
consistency springs are available depending on the
thickness of the product being served. These parts are
interchangeable depending upon your needs. One
plunger, part W0480438, has one horizontal outlet slot
and is used to serve thin to medium products such as
frozen lemonade and slush. The other plunger, part
W0480451, has two horizontal outlet slots and is used
to serve thicker product such as neutral base frozen
cocktails. A red spring, part W0631239, is used on the
drive motor to adjust product consistency to serve thin
to medium products. The yellow spring, part W0631238,
is used for thicker product. The spring is located next to
the drive motor behind the right hand side panel.
Over an extended period of time, some products, such
as frozen cocktails that contain alcohol, have a
tendency to separate, or stratify. Separation of product
on the mix storage hopper can result in frozen product
quality inconsistency. Simply keeping the product, in the
mix storage hopper, stirred on a regular basis will
eliminate this problem.
Some cappuccino or latté mixes contain dairy products
which can spoil if not refrigerated. If the freezer is to
be turned off at night, these products must be removed
from the freezer.
Contact your local health department regarding its
regulations for proper mix handling and storage.
Carburetor Assembly
Your new freezer uses a metering device, known as a
carburetor, to feed the proper ratio of mix and air into
the freezing cylinder (and to prevent frozen product
from running out of the freezing cylinder).
The carburetor, or carb tube, is a tube with a hole, or
series of holes, bored through the side. It is located in
the hopper and fits in the hole that leads to the
freezing cylinder. Air flows into the freezing cylinder
through the top of the tube and mix flows in through
a smaller hole in the side of the carb tube. The size of
the mix inlet hole can be balanced with the viscosity
(thickness) of the liquid mix and product draw rate, in
such a way that the proper amount of mix is fed into
the freezer cylinder to blend with air at just the right
ratio. Mix viscosity varies by mix type, mix temperature,
and mix age. Different serving rates also demand
different feed rates. For many products, the proper mix
to air ratio is generally accepted to be two parts mix to
one part air. This proportion yields a finished product
that is both tasty and profitable. At this ratio, one
gallon of liquid mix will yield a volume of one and onehalf gallons of frozen product. This additional volume
is the overrun in the product. Crathco offers two
versions of carb tubes (see Figure A). Depending on the
product being served and overrun requirements there
is a standard tube for most slush or cocktail products
and a low overrun carb tube that allows all air trapped
in the freezing cylinder to escape. Most applications
only require the standard carb tube.
Standard
carb tube
(W0471076)
Low overrun
carb tube
(W0472060)
Figure A
1
2
1
2
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Model 3511 Beverage Freezer Crathco
®
5
General Information (continued)
Mix Considerations - General
Freezing characteristics are affected by the amount of
sweeteners and solids in the mix. The amount of
sweeteners and solids is called BRIX. BRIX can be
measured with an instrument called a refractometer. A
BRIX reading of between 11 and 14 will provide
optimum freezer operation. Mixes with this BRIX level
will freeze down to a smooth, uniform consistency.
Mixes with too high a BRIX level will take longer to
freeze down and will yield a soft, wet frozen product.
Mixes with too low a BRIX level will have larger ice
crystals and will have a tendency to dispense slowly.
Alcohol content also affects product freezing
characteristics. High alcohol content may prevent the
freezer from serving product at proper thickness.
Note: Always take BRIX measurement using mix that
has been thoroughly blended, before it is frozen.
Always allow frozen mix to thaw thoroughly before
taking a reading.
For maximum output capacity, always pre-chill mix
before adding it to the freezer. Pre-chilled mix gives the
freezer a head start on the freezing process and will
speed both initial freeze down and recovery time. It is
normal for output capacity to decrease when warm mix
is added, or when the freezer is operated in a warm
area.
Shipment Transit
1. The freezer has been operated and tested
at the factory. Upon arrival the complete
freezer must be thoroughly checked for any
damage which may have occurred in transit.
NOTICE: A Tip (N) Tell warning device is placed on
each shipping carton at the
factory. If the indicator is red, the
carton has been tipped in transit.
(See Figure B.)
2. THE CARRIER IS
RESPONSIBLE FOR ALL
DAMAGE IN TRANSIT
WHETHER VISIBLE OR
CONCEALED. DO NOT
PAY THE FREIGHT BILL until the freezer
has been checked for damage. Have the
carrier note any visible damage on the
freight bill. If concealed damage or
shortages are found later, advise the carrier
within 10 days and request inspection. The
customer must place any claim for damage
and/or shortage with the carrier.
Grindmaster-Cecilware cannot make any
claims against the carrier.
Installing Your Unit
1. Place the self-sealing rubber pad (shipped
with the freezer) on a level counter that is
stable and strong enough to safely support
the freezer’s weight (200 lbs. / 90.7 kg), or
if equipped with legs instead of pad, install
legs by screwing them into the four leg
holes on the bottom of the unit. (Leg Kit
Part # W0890220 (4) 4” (10 cm) Legs)
2. Make sure freezer is to be placed in a
location that is within 6’ (1.8m) of a
properly grounded circuit and allows
adequate space at each side and above for
proper air circulation.
Air Cooled Units Only: Minimum
clearance is 6” (15 cm) on both sides and 0”
at back and open above the freezer. (See
Figure C.)
NOTICE: Failure to allow adequate ventilation will
void the warranty and reduce freezer performance.
NOTICE: Locating the unit in high ambient
temperatures (over 100°F / 37.8°C) will significantly
reduce the performance of your machine.
3. Remove the side panels. Supporting all four
sides, lift machine up (by the frame), and
place in appropriate area on top of rubber
pad.
NOTICE: If equipped with spinner, do not lift unit up
by spinner shaft. It will cause serious damage to spinner.
CAUTION: Beverage freezers are heavy pieces of
equipment. It is recommended that moving or lifting
the unit be done by two people to avoid injury.
Installation
Figure B
Figure C
0” CLEARANCE
AT REAR OF
MACHINE
6 Crathco
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Model 3511 Beverage Freezer
Installation (continued)
Installing Your Unit (continued)
4. The side panels should still be removed. Cut
the cable tie used to secure motor during
shipment. Make sure motor rocks freely.
(See Figure D.)
5. 220V/50Hz Units: These units come with a
plugless cord that requires the appropriate
plug configuration be connected. This must
be determined by the power outlets at the
specified location. See wiring diagram at
back of manual for assistance. It is
recommended that a service technician
performs this operation.
6. Review contents from hopper to make sure
all parts are present:
* Optional items specified when the unit is ordered.
7. Fill out Warranty Registration Card with the
requested information and mail to
Grindmaster-Cecilware.
8. Replace side panels.
9. Assemble the dispense valve following the
instructions on page 12. The valve plunger,
spring, and retaining pin come in the small
parts bag.
10. Be sure ON-OFF-CLEAN switch (toggle
switch located underneath the electrical
box) is in the “OFF” position.
11. Connect the power cord directly to a
properly grounded DEDICATED 220V/60Hz,
20 Amp circuit. Do not use an extension
cord.
WARNING Do not alter or deform the plug in any
way! Altering or deforming the plug may cause
electrical shock, damage unit, and will cause serious
personal injury.
12. Remove the drip tray kit from the plastic
bag. Separate the parts and remove the
protective coating. The drip tray is mounted
on two screws that are located on the lower
front of the freezer cabinet.
13. Place the key hole slot of the drip tray
support bracket (W0472064) on to these
screws and tighten the screws.
14. Place drip tray onto drip tray surround
bracket.
15. Place the louvered drip tray insert into drip
tray.
The Model 3511 has several optional accessories that
can be added to the unit in the field to meet your
application’s needs. These accessories come with
installation instructions.
• Spinner - Spinners are typically used in applications
that add flavoring to a frozen neutral base product
after it is dispensed.
Allows operator to serve a wider variety of frozen
drinks from one machine (e.g. hazelnut added to
cappuccino). (See Figure E.)
Figure D
Part # Description
390-00060 Manual
W0600073 Rubber Pad Sheet
W0600121 Merchandiser Installation Sheet
W0600012 MSDS Sanitizer Sheet
W0600159 Warranty Registration Card
W0890218 Drip Tray Kit
W0520094 Hopper Cover
W0480445 Valve Handle
W0631230 Valve Spring
*
Carb Tube
*
Dispense Valve Plunger
W0470076 Lubricant
W0631903 Sanitizer Packets
W0340022 O-rings
Accessory Installation
Spinner mounting bracket
Spinner
Mounting screws
Electrical box
Figure E
REMOVE CABLE TIE
• Concealed Air Filter - Prevents dust from clogging
the condenser.
Ideal for applications near beaches. Helps maintain
maximum air flow and optimum freezer
performance. (See Figure F.)
NSF approved. Part # W0890200 stainless steel;
W0890208 black.
• Exposed Air Filter - Similar to concealed air filter.
Not NSF approved. Part # W0890206. (See Figure G.)
• Valve Lock Security Bracket - Part # W0471135.
Ideal for self-service locations to prevent
unauthorized use. Lock must be purchased
separately. (See Figure H.)
• Remote Fill Control - Automatically refill the mix
storage hopper. Provide additional labor savings by
pre-mixing product automatically and monitoring
system to maintain the mix hopper level.
• Private Label Header - A private label or different
drink header can be installed by removing two screws
from the electrical box cover. Place the header
(transparency) between the clear and opaque plates
(plastic lens). Put these in place under the lip of the
machine top. Slip the electrical box cover back on to
the machine and reinsert the screws. (See Figure I)
Grindmaster-Cecilware offers a variety of drink
headers including: frozen beverage, frozen
lemonade, cappuccino, margarita, piña colada,
frozen cocktail, frozen daiquiri, and smoothie.
Model 3511 Beverage Freezer Crathco
®
7
Accessory Installation (continued)
FILTER
SLIDE THE FILTER IN BEHIND
THE FILTER PANEL, & IN FRONT
OF THE EXISTING SIDE PANEL.
TO CHANGE, REMOVE, CLEAN
AND/OR REPLACE.
Figure F
Figure G
Figure H
Figure I
8 Crathco
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Model 3511 Beverage Freezer
Operation and Adjustments
How to Operate
1. Sanitize unit following the cleaning
instructions starting on page 9.
2. Fill the mix storage hopper following the
instructions on page 13. Allow barrel to fill
with product to proper level, then insert
carb tube from parts bag in hole toward
rear of hopper. (See Figure J.)
3. Turn power switch to “ON” position.
4. Allow product to freeze in barrel.
Compressor will turn off when product
reaches pre-set consistency.
5. To dispense product, pull down valve
handle and release when done.
6. If product consistency is not as desired,
adjust per the instructions on this page.
7. Refill mix storage hopper when “mix out”
light is on.
8. Clean the unit regularly following local
health codes.
9. Perform maintenance when necessary to
increase the life of the unit. See the chart in
this manual for regular maintenance
schedule (page 14).
Mix Low Function
This model utilizes a simple float mechanism to sense
when mix is low in hopper. (See Figure J.) When the mix
level in the hopper is low, the mix low light located in
the front of the machine next to the valve block will
illuminate.
NOTICE: Do not run the unit under mix low
conditions for long periods of time. This can affect
machine performance or damage componentry.
Consistency Adjustment
From time to time, it may become necessary to readjust
the consistency setting (thickness) to compensate for
variation between different mixes or to switch from one
type of product to another. This adjustment is made as
follows:
1. Disconnect electrical power.
WARNING: Do not attempt to readjust the
freezer until electrical power has been disconnected.
2. Remove right side panel (facing the freezer).
3. Use the adjustment screw, situated on the front
of the drive motor mounting bracket to change
product thickness. Turn the thumbscrew (3 full
turns for red spring, 1 turn for yellow spring) to
make a noticeable change in consistency. (See
Figure K.)
NOTICE: Turn screw clockwise for thicker product
consistency and counter clockwise for thinner product
consistency. (See Figure L.)
4. Reinstall the side panel, reconnect power.
5. Turn freezer to “ON” and allow it to freeze to
desired consistency.
6. Check product. Repeat process until desired
consistency is achieved.
NOTICE: When making changes to a colder (thicker)
setting, recheck consistency again after the compressor
has cycled off. When adjusting (counter-clockwise) to a
thinner consistency, a large portion of product must be
drawn from the dispense valve to reduce the product
thickness below the new set point (adjustment). Then
allow the freezer to refreeze product to the new
setting.
Mix Low Float O-ring
Carburetor
Mix Low Float
Figure J
Increase Thickness
(turn clockwise)
Decrease Thickness
(turn counterclockwise)
Figure L
Figure K
Model 3511 Beverage Freezer Crathco
®
9
Cleaning and Maintenance
Cleaning and sanitizing frequency must be followed in
accordance with state and local health department
regulations.
NOTICE: Each time the freezer is fully disassembled,
all food zone freezer components must be thoroughly
washed and sanitized using procedures recommended
by the local health department. In lieu of local health
department recommendations, use a three
compartment sink; one compartment to wash parts in
detergent, one compartment to rinse, and one to
sanitize.
Drain and Rinse
1. If the freezer is empty, proceed to Disassembly
and Cleaning. If there is product in the freezer,
turn the front panel switch to “CLEAN”. It is
recommended to schedule cleaning when
product in the hopper is low to minimize
product loss.
2. On freezers using the optional Remote Fill
Control and Proportioning Pump, turn “OFF”
the water valve on the Proportioning Pump,
using the valve next to the inlet pressure
regulator and turn the switch on the Remote Fill
Control to “OFF”.
3. Open the front dispensing valve and drain all
product from the freezer. Close the dispensing
valve and turn freezer to “OFF”.
NOTICE: Use approximately 2½ gallons (10 liters)
of cool water to rinse product out of freezer.
4. Remove the carburetor tube and pour water
into the storage hopper. Allow the water to fill
the freezing cylinder.
5. Turn the panel switch to “CLEAN” for 5 minutes.
6. Open the dispensing valve and drain the water
from the freezer.
7. Turn the freezer “OFF”.
Disassembly and Cleaning
NOTICE: For cleaning and sanitizing before initial
start-up remove carb tube, dispense plunger, handle,
and spring from parts bag first.
1. Disassemble the dispensing valve assembly (see
Figure M). Pull out valve handle retaining pin
while supporting the valve plunger from the
bottom (see Figure N). Push up on the valve
plunger and remove the stainless handle (see
Figure O). Slide the valve plunger and spring
downward to remove (see Figure P).
2. Remove knobs and carefully remove the front
dispensing valve assembly, leaving the dasher
assembly in the cylinder. Remove the O-rings
from the plunger assembly and back of the
dispensing valve body. (See Figure Q, page 10.)
Figure M Disassemble Dispensing Valve
Figure N Remove Pin
Figure O Remove Handle
Figure P Remove Plunger and Spring
10 Crathco
®
Model 3511 Beverage Freezer
Cleaning and Maintenance (continued)
Disassembly and Cleaning
NOTICE: 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 paper towel
between your index finger and thumb. When a loop is
formed in the O-ring, roll it out of the groove with your
other thumb. Always remove the O-ring farthest from
the end of the plunger first. Carefully inspect the Orings and replace if necessary. Be careful not to pull or
t
ug excessively on O-rings. O-rings can be distorted which
will deteriorate sealing performance. (See Figure Q.)
3. Remove the dasher assembly from inside the
freezing cylinder taking care to avoid damaging
the rear seal assembly at the back of the
freezing cylinder. Disassemble the dasher
assembly by removing the stator rod and front
and rear stator rod bearings.
4. Remove stationary half of the shaft seal
assembly from the back end of the freezer
cylinder. This is accomplished by reaching into
the cylinder and pulling seal out with your
index finger. (See Figure R.)
5. Slide the rotary half of the seal off the dasher
shaft. Inspect both seal components carefully
for nicks or cracks. Replace seal if defective.
NOTICE: To prevent leakage the surfaces of the rotary
seal and the stationary seal must be smooth with no
chips or cracks.
NOTICE: All units are shipped with a standard ceramic
seal (Part # W0340201) unless otherwise specified.
Certain products contain coconut oil, which requires a
different sealing material. For these products, use the
coconut oil seal (Part # W0340210). The stationary half
of the standard seal has a white polished surface. The
stationary half of the coconut oil seal has a glossy black
surface.
6. Remove carb tube from bottom of hopper and
remove O-rings. (See Figure S.)
7. Remove drip tray and empty contents.
8. Take all components to the cleaning area.
9. Prepare 1 gallon (3.8 liters) solution of hot tap
water and common dishwashing detergent.
10. Using a warm, mild detergent solution,
thoroughly wash all components, including the
inside of the freezing cylinder and the mix
storage hopper. DO NOT WASH COMPONENTS
IN A DISHWASHER.
11. Use a medium sized brush to clean the bottom
of the valve body and the inside of the plunger
bore with detergent solution, taking care to
remove only remaining lubricant. (See Figure T.)
12. The exterior of the freezer should be cleaned as
needed with a cloth towel.
NOTICE: Coarse rags, abrasive cleaners, and
excessive force can damage and/or scratch the
surfaces of the freezer.
Figure Q Ring Removal
Figure R Removal of stationary half of seal
Figure S Carb Tube
Figure T Clean Valve Body
Model 3511 Beverage Freezer Crathco
®
11
Cleaning and Maintenance (continued)
Reassembly
NOTICE: Allow all parts to dry completely before
reassembly.
1. Reassemble drip tray and re-install on front of
unit.
2. Wet the inner rubber lip of the rotary half of
the seal and the back end of the dasher shaft
with water. Slide rotary half of assembly onto
the dasher shaft, RUBBER FIRST, with the
smooth sealing surface facing the back of the
dasher. (See Figure U.) Be sure the rotary half is
fully seated against the shoulder of the shaft.
3. Insert the stationary half of the seal into the
ribbed rubber boot with the polished surface
facing out (forward).
4. Lightly lubricate the ribbed rubber boot of the
stationary ceramic seal (taking care not to get
any lubricant on the polished surface) and insert
it straight back into the recess at the back of the
freezing cylinder, RUBBER FIRST. (See Figure V.)
NOTICE: The stationary half of the seal must be
completely dry before reassembling. If the circular half
of the seal is white, make sure that the grooved side is
toward the rubber. If the circular half is black, be sure
the glossy side is facing out.
5. Reassemble the dasher assembly, as shown in
Figure W. Insert the larger front and smaller
rear white plastic bearings into dasher, then slip
in the stator rod.
6. Carefully and slowly guide the dasher into
the freezing cylinder, taking care not to
damage the seal assembly. Turn dasher shaft
until it engages the square drive coupling. Slide
the dasher back into the cylinder so that the
two smooth sealing surfaces meet. (See Figure
X.)
7. Inspect and lightly lubricate the large square
O-ring and refit it into the back of the valve
block assembly. Install the valve assembly on the
front studs and tighten the knobs until they are
finger tight. Do not use tools to tighten
knobs.
NOTICE: Failure to lightly lubricate the large O-ring
can result in product leakage.
Figure U Re-assemble rotary half of seal as shown
Figure V Install stationary half seal
Figure X Seal Assembly
Figure W Dasher Assembly
Sanitizing and Refilling
1. Reassemble carburetor by installing the two Orings at the bottom of the carb tube.
2. Place the carburetor assembly in the bottom of
the hopper.
3. Install the O-rings on valve plunger and lay
plunger assembly on a clean piece of paper
towel.
4. Prepare a minimum of 2.5 gallons (9.5 liters) of
sanitizing solution (Kay-5 Sanitizer/Cleaner or
equivalent) following the manufacturer’s
instructions.
NOTICE: Add 1 ounce (28 gm) of Kay-5 to 2.5 gallons
(9.5 liters) of 120°F (50°C) water to achieve a
concentration of 100 parts per million.
5. Dip a medium sized brush into the sanitizing
solution and sanitize the inside bore of the
dispensing valve. (See Figure Y.)
6. Place a small amount of lubricant onto a piece
of clean paper towel. Use a clean piece of
paper towel to pick up the small end of the
valve plunger assembly. Apply a thin film of
lubricant from the other piece of paper towel.
(See Figure Z.)
7. Slide the valve plunger spring over the small
end of the valve plunger and, using another
clean piece of paper towel pick up the valve
plunger at the outlet end and insert plunger
and spring into the valve body. (See Figure AA.)
8. Push up on the valve plunger and insert the
stainless steel handle. (See Figure BB.)
9. Holding the handle down slightly so that the
hole in the handle and valve block are aligned,
insert the dispensing valve handle retaining
pin. (See Figure CC.)
12 Crathco
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Model 3511 Beverage Freezer
Cleaning and Maintenance (continued)
Figure Y Sanitize Valve Body
Figure Z Lubricate Plunger
Figure AA Install Plunger and Spring
Figure BB Insert Valve Handle
Figure CC Insert Retaining Pin
10. Pour sanitizing solution into the mix storage
hopper and allow the solution to fill freezing
cylinder. Use a large brush to sanitize all
hopper surfaces. (See Figure DD.)
11. Turn panel switch to “CLEAN” and allow
freezer to run for 5 minutes.
12. Open dispensing valve and drain solution.
Allow the dasher to push remaining sanitizer
out of the freezing cylinder. Once the
sanitizing solution is drained, turn panel switch
to “OFF”.
13. Place a small amount of sanitary lubricant onto
another piece of clean paper towel. Use a clean
piece of paper towel to pick up the large end
of the carburetor from the bottom of the
hopper taking care not to touch the sanitized
carburetor with your bare hand (Figure EE).
Apply the lubricant on the other piece of paper
towel to the two O-rings on the bottom of the
carburetor assembly (See Figure EE.).
14. Place the lubricated carburetor assembly on a
clean piece of paper towel.
15. Prepare fresh product according to
manufacturer’s instructions.
16. Hold open the dispensing valve and pour
product (approx. 10 oz. or 0.3 liter) into the
hopper to allow this product to chase out any
remaining sanitizer. Watch the product flowing
out of the dispensing valve and close the valve
when the new mix has purged the sanitizer
remaining in the cylinder.
17. Use a clean piece of paper towel to insert the
sanitized carburetor assembly into the hopper
inlet hole.
18. Fill mix storage hopper with fresh product.
Cover hopper with hopper lid.
19. Turn front panel switch to “ON”. Allow the
freezer to reach proper consistency.
Clean-In-Place Procedure (Daily Cleaning)
This equipment has been approved for a Clean-In-Place
procedure that does not require complete disassembly
on a daily basis. The unit still requires regular complete
disassembly for cleaning and sanitizing. To perform the
C-I-P procedure, follow the instruction below:
1. Empty any product in the machine and turn to
OFF.
2. Disassemble the dispensing valve assembly
following the instructions in Disassembly and
Cleaning (page 8).
NOTICE: Leave the valve block in place. Only
disassemble the plunger, handle, spring, O-rings, and
pin.
3. Remove carburetor assembly from hopper and
remove O-rings.
4. Take all components to the cleaning area.
5. Carefully inspect the O-rings for cracks, chips,
or cuts and replace if necessary.
6. Prepare 1 gallon (3.8 liter) solution of hot tap
water and common dishwashing detergent.
7. Thoroughly wash all parts including handle,
pin, valve plunger, spring, carburetor assembly
and all O-rings in detergent solution.
8. Use a medium sized brush to clean the bottom
of the valve body and the inside of the plunger
bore with detergent solution taking care to
remove any remaining lubricant.
9. Reassemble following the instructions under
Sanitizing and Refilling (page 11).
NOTICE: Run the unit with sanitizer on “CLEAN” for
20 minutes before draining and refilling.
Model 3511 Beverage Freezer Crathco
®
13
Cleaning and Maintenance (continued)
Figure DD Sanitize Hopper
Figure EE Lubricate Carb Tube
Maintenance
WARNING: Disconnect power for maintenance. Do not attempt to perform maintenance on the freezer
until electrical power has been disconnected.
Suggested Daily Maintenance
1. Clean, lubricate, and sanitize the freezer following guidelines.
2. Clean the exterior of the freezer using a soft wet cloth. (Wipe down spinner if attached.)
3. Empty drip tray.
Parts Replacement Schedule
14 Crathco
®
Model 3511 Beverage Freezer
Cleaning and Maintenance (continued)
Part
Description
Monthly
Every 3
Months
Every 6
Months
Annually
Quantities to
be Replaced
Shaft Seal
(W0340201 or W0340210)
Replace 1
Drive Shaft
(W0451067)
Inspect & replace if
necessary
1
Drive Belts
(W0450209)
Inspect & replace if
necessary
1
Scraper blades on dasher
(W1431084)
Replace
2
Square cut O-ring on valve
body/face plate
(W0340055)
Inspect & replace if
necessary
1
Front stator flange bearing
(W0430032)
Replace 1
Rear stator flange bearing
(W0430024)
Replace 1
Dispense valve O-rings
(W0340022)
Replace
Thick Product
Plunger: 2
Standard Product
Plunger: 3
Carb tube O-rings
(W0340011)
Replace 2 or 3
Condenser
Inspect & clean
if necessary
(Air-cooled units only)
1
Refer to the Parts Price List when ordering the above parts.
Model 3511 Beverage Freezer Crathco
®
15
Cleaning and Maintenance (continued)
Preventative Maintenance Procedure
(Every 6 to 12 Months)
A preventative maintenance visit should be performed
every 6 to 12 months depending on the usage and
environment where the unit is placed. (Ex. seasonal
machines - once before season, year round machines twice per year). The following procedures should be
performed during a preventative maintenance visit.
This does not take the place of daily care and cleaning
procedures as described by local health codes and the
manual. PM kit #W0890157 contains the standard
replacement parts needed for preventative
maintenance including O-rings, standard seal kit, stator
bearings, and drive belt. One kit is required for each
barrel receiving maintenance. Units with a coconut oil
product seal should order all parts separately. Units
with scraper blade dasher will require the scraper
blades be ordered separately.
• Verify ventilation is adequate (Air-cooled units:
6” (15 cm) minimum on both sides, open at
top, and as far as possible from dust sources;
Water-cooled units: 0” on both sides, 3 - 6” (7.6
- 15 cm) at rear of unit and open at top).
• Verify adequate water flow, and drain
connections on water-cooled versions.
• Check product temperature and consistency for
proper setting (refer to food product
manufacturer’s recommendation) - adjust if
necessary. Where equipped, be sure to check
the temperature in both the hopper and
cylinder.
• Ensure product is being mixed properly and is
within specification (check brix - most products
should be around 13% - refer to food product
manufacturer’s recommendations for exact
recommended brix).
• Check for any leaks.
• Empty product from the unit. Disassemble unit
completely (as if for cleaning).
• Clean and sanitize all disassembled parts
following the cleaning instructions in the
manual.
• Clean and sanitize hopper, freezing cylinder,
and splash zones on the machine.
• Check condition of all panels and lids - replace
if necessary.
• Check dasher scraper blades for wear if
equipped - replace once per year minimum.
• Check dasher for signs of wear - replace if
necessary. Verify alignment when replacing.
• Check valve body gasket for wear - replace
once per year minimum.
• Check valve body knobs (used to hold valve
body in place) - replace if necessary.
• Check condition of shaft seals and stator
bearings - replace once per year minimum.
• Inspect drip cup at back end of freezing
cylinder for signs of seal leakage.
• Replace O-rings on hopper float (where
necessary), dispense valves, and carb tubes
(lubricate).
• Lubricate parts where appropriate (dispense
valve O-rings, carb tube O-rings, rubber boot
of stationary shaft seal). Lubricate with FDA
approved food grade lubricant.
• Re-assemble unit and sanitize hopper and
freezing cylinder by running CLEAN cycle.
• Clean and sanitize spinner if equipped.
• Check operation of merchandiser and mode
lights - replace light bulbs if necessary.
• Clean reusable filter if equipped. Check
condition of filter and replace if necessary.
• Clean condenser.
• Inspect the drive shaft and motor shaft
bearings for excessive wear (drive shaft hole
rounding out) - replace if necessary. Verify
alignment when replacing.
• Check V-belt tension (should be 1/2” - 5/8” or
1.3 - 1.6 cm) and verify all set screws are
tightened - adjust if out of range. Replace belt
once per year minimum.
• Verify compressor operation and freezer
controller operation.
• Check electrical connections (outlet should be
properly grounded with amperage capacity
equal to or over the amperage specified on the
serial tag).
• Check condenser fan operation and clean fan
blades if necessary.
• Review proper periodic care and cleaning
instructions (disassembly, cleaning, sanitizing,
lubrication, and re-assembly) with store
personnel. Train store personnel to follow
proper procedures (stress importance of store
level maintenance i.e. lubrication, filter
cleaning, etc.).
• Make sure store personnel have appropriate
supplies (lubricant, cleaning brushes, and
sanitizer) to care for machine.
How to Clean Condenser (Air-Cooled Unit Only)
NOTICE: Loss of refrigeration efficiency will result if
condenser is allowed to become dirty. Excessive
compressor run time or loss of capacity is a good
indication that the condenser needs to be cleaned.
1. Disconnect electrical power.
2. Remove side panels.
3. Place a damp towel over the side of the condenser
opposite the fan motor.
4. Using compressed air or CO2, blow out dirt from
the fan side of the condenser. An alternate
cleaning method is to use a condenser brush and
vacuum cleaner.
CAUTION: Procedure can create a loud noise. Use
hearing protection.
How to Clean Exposed Filter
(Air-Cooled Unit Only)
1. Slide exposed filter out of the rails by pulling
forward on the filter. It is recommended to remove
the filter by using the palm of your hand and
applying even pressure to the face of the filter.
2. Clean filter with liquid soap and water.
3. Soak filter for 15 minutes.
4. Rinse filter with heavy stream of water, opposite
the direction of air flow. Allow filter to dry.
5. Slide the filter into the rails until the filter contacts
the stop on the top rail.
How to Clean Concealed Filter
(Air-Cooled Unit Only)
1. For concealed filters, lift lid and pull up on filter
tab to remove filter.
2. Clean filter with liquid soap and water.
3. Soak filter for 15 minutes.
4. Rinse filter with heavy stream of water, opposite
the direction of air flow. Allow filter to dry.
5. Slide filter into top of filter cover with removal clip
up and the air flow arrows facing the existing
panel.
How to Adjust Belt
CAUTION: Unplug the machine before
performing any adjustments. This procedure
must be done by a qualified technician.
Check the belt tension. The proper belt deflection is
1/2” (1.3 cm) over all. If the deflection is more than 1/2”
(1.3 cm) the motor will need to be lowered. If the
deflection is less than 1/2” (1.3 cm), the motor will need
to be raised. Follow this procedure to adjust the motor
to achieve proper belt tension. (See Figure FF)
1. Unplug the machine and remove both side and
rear
panels.
2. Locate the motor flange bearings. These are the
side mounted bearings that hold the motor to the
cradle. The motor is double shafted and the shaft
extends through a bearing on each end. The
bearing is held to the motor cradle by two allen
bolts on each bearing.
3. Loosen the allen bolts on each bearing. Do not
loosen the setscrews that hold the bearing collar to
the motor shaft.
4. Lower the motor or raise the motor as needed. The
motor must be kept level from front to back. Do
not lower or raise only one end of the motor. This
will result in excessive belt wear and belt noise.
5. Align the motor pulley with the top pulley if
needed. Tighten all four allen bolts down.
NOTICE: The motor pulley should be in alignment
with the large (driven) top pulley. Use a straight edge
along the top pulley.
6. If the pulleys are not in alignment, loosen the
setscrew on the motor pulley and move either in or
out as needed.
7. Tighten the setscrew back down on the motor
shaft (use of non-permanent Loctite®is
recommended). Please be sure the setscrew is
tightened down on the flat surface of the motor
shaft.
8. Reassemble and return the unit back into service.
How to Change Back Lit Sign Merchandiser Bulb
1. Remove the two screws located on the top of
either side of the sign.
2. Lower the metal enclosure that frames the
merchandiser insert.
3. Pull merchandiser enclosure down and out.
4. Replace bulb inside by pulling bulb straight out of
the socket. Firmly insert the new bulb into the
socket.
5. Reassemble. For ease of assembly, put
merchandiser and plastic lenses in light box before
placing metal enclosure back on.
16 Crathco
®
Model 3511 Beverage Freezer
Cleaning and Maintenance (continued)
Figure FF
BELT TENSION
SHOULD BE
1/2” - 5/8”
(1.3 - 1.6 cm)
Freezer problems originate from three sources - improper operation, mix problems, or mechanical malfunction.
Always check for improper operation and mix problems first, as they are the most common cause of most
equipment problems.
CAUTION: Always disconnect power before attempting any maintenance procedures.
Only a qualified service technician should perform electrical and mechanical adjustments or repairs.
Model 3511 Beverage Freezer Crathco
®
17
Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
Machine will not run or freeze down • Machine not plugged in
• Circuit breaker tripped or fuse blown
• Machine in CLEAN or OFF position
• Obstructed condenser air flow
(Air-cooled units)
• Compressor not operating
• Dasher not installed
• Low refrigerant charge
• Plug machine in
• Reset breaker or replace fuse
• Switch to ON position
• Clean condenser. Allow 6” (15 cm)
on both sides
• Check for cause and correct
• Install dasher (auger)
• Check for leaks, repair, and recharge
Product too soft • Consistency setting too loose
• Consistency setting at maximum
(red spring)
• Product BRIX level too high
• Too much alcohol in mix
• Readjust consistency control
• Change to yellow consistency spring
• Lower liquid product BRIX level
• Lower alcohol content
Product too stiff • Consistency adjuster set too firm
• Product BRIX level too low
• Readjust consistency setting or change
to red spring
• Increase product BRIX level
Product will not dispense • Power switch OFF
• Inadequate mix in hopper. Red MIX
LOW light on
• Consistency adjuster set too firm
• Carburetor inlet hole clogged
• Drive belt broken or off pulley
• Drive shaft worn
• Drive motor failure
• Turn power switch ON
• Refill hopper
• Readjust consistency setting
• Unclog carburetor inlet hole
• Repair or replace
• Inspect square drive shaft pocket for
excessive wear, replace
• Replace motor
Leakage from drain tube, front of freezer
above drip tray
• Worn or defective shaft seal
• Seal installed incorrectly
• Replace seal and then lubricate at
each cleaning
• Remove and install seal
Excessive dispensing valve leaks • Worn or defective O-ring(s) • Replace and lubricate
Clicking sound from inside 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
Thumping sound from inside machine • Worn belt • Replace belt
Scraping sound during freeze down • Frozen product scraping off of
cylinder walls
• No product in machine
• Sound should go away when product
is frozen to proper consistency
• Fill with product
Premature seal wear • Incorrect installation of dasher
• Improper drive shaft clearance
• Incorrect shaft alignment
• Advise careful installation
• Adjust to proper
• Align shaft
Merchandiser light flickers when freezer
cycles
• Low voltage • Connect freezer to dedicated circuit
with proper rating
If you still need help, call Grindmaster-Cecilware Technical Service Department, (502) 425-4776 or (800) 695-4500
(USA & Canada only) (Monday through Friday 8 AM - 6 PM EST). Please have the model and serial number ready
so that accurate information can be given.
Prior authorization must be obtained from Grindmaster-Cecilware for all warranty claims.
Grindmaster-Cecilware provides the industry’s BEST warranty. Visit our website at GMCW.com for
warranty terms and conditions.
18 Crathco
®
Model 3511 Beverage Freezer
Parts Identification
1
2
Rough Side
of Ceramic
Smooth
Shiny Side
CHECK LIST
PARTS IDENTIFICATION
Coconut Oil Seal (W0340210) and Standard Seal
(W0340201) include 1, 2, & 3.
Slush Plunger (W0480438)
Thick Product Plunger
(W0480451)
(W0430026)
Scraper Blade Dasher (W0430089)
(W0631230)
Use with scraper blade dasher
17b Optional low overrun
Carburetor
W0472060
Model 3511 Beverage Freezer Crathco
®
19
Parts Diagram and List
Exploded View
ITEM NO. PART NO. DESCRIPTION ITEM NO. PART NO. DESCRIPTION
1 W0201272 CYLINDER ASSEMBLY 28 W0472062 PAN, DRIP FORM X-LG
2 W0201261 BASE PAN ASSEMBLY 29 W0472063 INSERT, DRIP PAN X-LG
3 100808 1 HP COMPRESSOR, 230V 30 W0472064 DRIP PAN BRACKET
4 W0200256 CONDENSER COIL, AIR, CFB 31 W0630711 VALVE KNOB
5 W0322000 FAN ASSY, 220/60 32 W0631632 DRIP TRAY
6 W0321026 DRIVE MOTOR ASSEMBLY 33 W0611728 FASPIN, VALVE
7 W0210083 FRAME ASSEMBLY 34 W0480451 THICK PRODUCT PLUNGER
8 W0572247 ELECTRICAL BOX ASSEMBLY 35 W0110013 VALVE STUDS
9 W0570059 BALLAST 36 W0611085 NUT, 5/16-18 S.S. HEX NUT
10 W0572290 LIGHT REFLECTOR 37 W0340022 PLUNGER O-RINGS
11 W0631610 FRONT DISPLAY LENS 38 W0570018 LIGHT, INDICATOR LT RED 12V
12 W0631614 ACRYLIC LENS 39 W0520063 REAR MACHINE PANEL
13 W0572452 ELECTRICAL BOX COVER 40 W0520065 RIGHT SIDE PANEL
14 W0211112 DRAIN TUBE FITTING 41 W0520107 LEFT SIDE PANEL
15 W0340058 BARREL GASKET 42 W0380025 BEARING, 1" BORE
16 W0340007 #108 FLOAT O-RING 43 W0451067 DRIVESHAFT, SLUSH
17 W0570941 MIX LOW INDICATOR FLOAT 44 W0450209 BELT, V
18 W0430089 DASHER WELDMENT, 45 W0450053 PULLEY, 10"
19 W1431084 SCRAPER BLADE, NEW STYLE 46 W0471075 CARB TUBE, SLUSH/COCKTAIL
20 W0430029 STATOR ROD 47 W0340011 O-RING, -115 BUNA-N CARB
21 W0430024 REAR STATOR BEARING 48 W0520094 HOPPER COVER
22 W0340201 SHAFT SEAL SET 49 W0570043 BULB, FLUORESCENT
23 W0430032 STATOR FLANGE BEARING 50 W0480438 SLUSH PLUNGER, STANDARD
24 W0480450 VALVE BODY 51 W0572511 BRACKET, CAPACITOR SUPPORT
25 W0340055 VALVE SQUARE CUT O-RING 52 W0570617 RUN CAPACITOR
26 W0631230 VALVE SPRING 53 W0570619 START CAPACITOR
27 W0480445 VALVE HANDLE
20 Crathco
®
Model 3511 Beverage Freezer
Parts Diagram and List (continued)
Base Assembly
ITEM NO. PART NO. DESCRIPTION
1 W0321026 DRIVE MOTOR ASSEMBLY
2 W0210107 BASE PAN ASSEMBLY
3 W0200704 CONDENSER ASSEMBLY
4 W0322000 FAN ASSEMBLY 220/60
5 W0200705 COPELAND COMPRESSOR SUB-ASSY
6 W0611074 HUT, HEX, 1/4-20, Z/P
7 W0611082 NUT, 5/16-18 FLANGE, LARGE
8 W0611247 1/4" INT TOOTH LOCK WASHER
9 & 10 W0200422 COMPRESSOR MOUNT GROMMET
Model 3511 Beverage Freezer Crathco
®
21
Parts Diagram and List (continued)
Drive Motor Assembly
ITEM NO. PART NO. DESCRIPTION
1 W0210169 MOTOR CRADLE
2 W0320020 MOTOR, DRIVE DUAL CYCLE, 1/2HP
3 W0321013 NUT, MOTOR ADJUSTMENT
4 W0321027 PIN SLEEVE
5 W0380009 1" BORE FLANGE BEARING
6 W0450016 PULLEY, 0K7 x 1/2" BROWNING
7 W0610559 BOLT FOR BEARING
8 W0611249 WASHER, SPLIT, LOCK, Z/P
9 W0671022 INSULATION, MOTOR BRKT SOUND
10 W0170014 CONSISTENCY CONTROL
11 W0321025 MOTOR STOP BRKT ASSY
12 W0630421 CABLE CLAMP
22 Crathco
®
Model 3511 Beverage Freezer
Parts Diagram and List (continued)
Electrical Box Assembly
ITEM NO. PART NO. DESCRIPTION
1 W0572287 ELECTRICAL BOX
2 W0570235 TERMINAL BLOCK
3 W0570651 HEAT SEQUENCER
4 W0610131 SCRW, 8-32 x 1/4, Self Thrd Ph
5 W0610015 6-32 x 1/4 Screw
6 86827 6-32 Hex Nut
7 0076 SCREW, 8-32 x 3/8 HX HD, GRND
8 83151 WASHER, LOCK, #8, EXT TOOTH
9 W0630006 Heyco Snap Bushing
10 86600 Tie,Wire,Nylon,T18R
11 W0631606 Electrical Box Lens
12 W0571551 Wire Harness
13 61743 Heyco Shorty Plug
14 W0572192 Mix Low Sub-Assy.
15 W0570912 SWITCH, TOGGLE MCGILL
16 W0570630 RELAY, COMPRESSOR
17 W0570635 Relay, Contactor
18 W0570688 Transformer
19 101113 Seal, Electrical Box
20 W0570049 SOCKET, 4-PIN FLUORESCENT
21 W0570050 BULB, 4-PIN FLUORESCENT
Model 3511 Beverage Freezer Crathco
®
23
Wiring Diagram
ITEM NO.
PART NO.
DESCRIPTION
47 W0570635 CONTACTOR
48 W0570651
SEQUENCER
49 W0570912 TOGGLE SWITCH
50
W0570235
TERMINAL BLOCK
52 W0570688 TRANSFORMER
53
W0570018
INDICATOR LIGHT
55 W0570629 RUN CAPACITOR
56 W0570628
START CAPACITOR
57 W0570630 COMPRESSOR RELAY
58
W0570050
FLUOROSCENT LIGHT
59 W0570049 LIGHT SOCKET
60
W0570059
BALLAST
24 Crathco
®
Model 3511 Beverage Freezer
Wiring Diagram (continued)
Compressor Wiring
Model 3511 Beverage Freezer Crathco
®
25
Wiring Diagram (continued)
Ladder Diagram
FLUORESCENT LAMP
26 Crathco
®
Model 3511 Beverage Freezer
Wiring Diagram (continued)
Spinner Wiring
MICRO SWITCH
Model 3511 Beverage Freezer Crathco
®
27
Refrigeration Diagram
Refrigeration
ITEM NO. PART NO. DESCRIPTION
1 W0201261 BASE ASSEMBLY
2 W0620103 COUPLING, 3/8" ODS
3 REF. SUCT. LINE REF. SUCT. LINE
4 BARREL LINE BARREL LINE
5 W0650416 VALVE, NEEDLE, 1/4" FEM, SWEAT
6 CAP TUBE CAP TUBE
7 HOP. COOL LINE HOPPER COLLANT LINE
8 HOT GAS HOT GAS LINE
Grindmaster-Cecilware
4003 Collins Lane, Louisville, KY 40245 USA
Phone: 502.425.4776 Toll Free: 800.695.4500
Fax: 502.425.4664
Web: gmcw.com Email: info@gmcw.com
©2016 Grindmaster-Cecilware
Printed in USA
0516 Form # WH-305-04
Part # 390-00060
Grindmaster-Cecilware provides the
industry’s BEST warranty. Visit gmcw.com
for warranty terms and conditions.
Refrigeration Diagram (continued)
Refrigeration Schematic
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