Vollrath Stoelting F231-2X User manual

Model F231-2X
OPERATORS MANUAL
Manual No. 513707 Rev.2
A VOLLRATH® DIVISION

A VOLLRATH® DIVISION
This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care. This manual follows the guidance set forth in the follow-
ing industry standards: ANSI Z535.6, ASTM F760-93, ASTM F1827-13, FDA Food Code.
The illustrations and specifications in this manual are not binding in detail. We reserve the right
to make changes to the machine without notice, and without incurring any obligation to modify
or provide new parts for machines built prior to date of change.
DO NOT ATTEMPT to operate the machine until instructions and safety precautions in this
manual are read completely and are thoroughly understood. If problems develop or questions
arise in connection with installation, operation, or servicing of the machine, contact Stoelting
White Glove Service.
For warranty information, visit stoeltingfoodservice.com
stoeltingfoodservice.com
Stoelting Foodservice Equipment
502 Highway 67
Kiel, WI 53042-1600
U.S.A.
White Glove Service Network
Phone: [phone]
© 2020 Stoelting

A Few Words About Safety
Safety Information
Read and understand the entire manual before
operating or maintaining Stoelting equipment.
This manual provides the operator with information
for the safe operation and maintenance of Stoelting
equipment. As with any machine, there are hazards
associated with their operation. For this reason safety
is emphasized throughout the manual. To highlight
specific safety information, the following safety
definitions are provided to assist the reader.
The purpose of safety symbols is to attract your
attention to possible dangers. The safety symbols,
and their explanations, deserve your careful attention
and understanding. The safety warnings do not by
themselves eliminate any danger. The instructions
or warnings they give are not substitutes for proper
accident prevention measures.
If you need to replace a part, use genuine Stoelting
parts with the correct part number or an equivalent
part. We strongly recommend that you do not use
replacement parts of inferior quality.
Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious personal
injury. The message that follows the symbol contains
important information about safety.
Signal Word:
Signal words are distinctive words used throughout
this manual that alert the reader to the existence and
relative degree of a hazard.
WARNING
The signal word “WARNING” indicates a potentially
hazardous situation, which, if not avoided, may result in
death or serious injury.
CAUTION
The signal word “CAUTION” indicates a potentially
hazardous situation, which, if not avoided, may result in
minor or moderate injury.
NOTICE
The signal word “NOTICE” indicates information relating
to equipment/property damage. The information is not
hazard-related.
NOTE
The signal word “NOTE” indicates additional information
relating to the subject, usually a hint or tip, that is
not hazard-related and does not involve equipment/
property damage.

TABLE OF
CONTENTS
Section Description Page
1 Description and Specifications
1.1 Description.................................................................................................. 1
1.2 Specifications ............................................................................................. 1
2 Installation Instructions
2.1 Safety Precautions ..................................................................................... 3
2.2 Shipment and Transit.................................................................................. 3
2.3 Machine Installation.................................................................................... 3
2.4 IntelliTec2™ Setup...................................................................................... 4
3 Initial Set-Up and Operation
3.1 Operator’s Safety Precautions ................................................................... 7
3.2 Operating Controls and Indicators.............................................................. 7
3.3 Emptying the Freezing Cylinder ................................................................. 8
3.4 Disassembly of Machine Parts ................................................................... 8
3.5 Cleaning Disassembled Parts .................................................................... 9
3.6 Cleaning the Machine................................................................................. 9
3.7 Assembling Machine .................................................................................. 10
3.8 Sanitizing .................................................................................................... 10
3.9 Freeze Down and Operation ...................................................................... 11
3.10 Mix Information ........................................................................................... 12
4 Maintenance and Adjustments
4.1 Fine Consistency Adjustment ..................................................................... 13
4.2 Drive Belt Tension Adjustment.................................................................... 13
4.3 Condenser Cleaning (Air-Cooled Machines) .............................................. 13
4.4 Preventative Maintenance .......................................................................... 14
4.5 Extended Storage....................................................................................... 14
5 Troubleshooting
5.1 Error Codes ................................................................................................ 15
5.2 Troubleshooting - Error Codes ................................................................... 15
5.3 Troubleshooting - Machine ......................................................................... 17
6 Replacement Parts
6.1 Decals and Lubrication ............................................................................... 19
6.2 Auger Shaft and Faceplate Parts ............................................................... 20
6.3 Hopper Parts and Trays.............................................................................. 21

Owner’s Manual #513707 1 F231-2X Model Machines
SECTION 1
INTRODUCTION
1.1 DESCRIPTION
Stoelting’s Gravity Soft Serve Freezer dispenses two single
flavors, or combines them in a twin twist. The F231-2X
has 66% larger storage capacity than the standard F231.
Each hopper can hold up to five gallons of mix.
This freezer is ideal in self-serve and buffet-style restau-
rants or any location seeking the convenience of less
frequent hopper refills.
This manual is designed to assist qualified service per-
sonnel and operators in the installation, operation and
maintenance of the Stoelting F231-2X gravity machine.
Figure 1-2 Specification
1.2 SPECIFICATIONS Figure 1-1 Model F231-2X

Owner’s Manual #513707 2 F231-2X Model Machines
1.2 SPECIFICATIONS
Model F231-2X
Dimensions Machine as shipped
width 25-5/8’’ (65,1 cm) 40-1/4’’ (102,2 cm)
height 57-3/4’’ (146,7 cm) 64-1/2’’ (163,8 cm)
depth 33-3/4’’ (85,7 cm) 33-1/4’’ (84,5 cm)
Weight 640 lbs (290,2 kg) 730 lbs (331,1 kg)
Electrical 1 Phase, 208-240 VAC, 60Hz 3 Phase, 208-240 VAC, 60Hz
running amps 13.5 A 11.5 A
connection type NEMA 6-20P power cord provided NEMA L15-20P power cord provided
Compressor Freezing Cylinders - 12,000 Btu/hr
Storage - 1,300 Btu/hr Compressor
Drive Motor Two - 3/4 hp
Air Flow Air cooled units require 3” (7,6 cm) air space on both sides
Hopper Volume Two - 5 gallon (18,9 liters)
Freezing Cylinder
Volume Two - 0.85 gallon (3,22 liters)

Owner’s Manual #513707 3 F231-2X Model Machines
SECTION 2
INSTALLATION INSTRUCTIONS
2.1 SAFETY PRECAUTIONS
Do not attempt to operate the machine until the safety
precautions and operating instructions in this manual are
read completely and are thoroughly understood.
Take notice of all warning labels on the machine. The la-
bels have been put there to help maintain a safe working
environment. The labels have been designed to withstand
washing and cleaning. All labels must remain legible for
the life of the machine. Labels should be checked periodi-
cally to be sure they can be recognized as warning labels.
If danger, warning or caution labels are needed, indicate
the part number, type of label, location of label, and quantity
required along with your address and mail to:
STOELTING
ATTENTION: Customer Service
502 Hwy. 67
Kiel, Wisconsin 53042
2.2 SHIPMENT AND TRANSIT
The machine has been assembled, operated and inspected
at the factory. Upon arrival at the final destination, the
entire machine must be checked for any damage which
may have occurred during transit.
With the method of packaging used, the machine should
arrive in excellent condition. THE CARRIER IS RESPON-
SIBLE FOR ALL DAMAGE IN TRANSIT, WHETHER
VISIBLE OR CONCEALED. Do not pay the freight bill
until the machine 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
customer must place claim for damages and/or shortages
in shipment with the carrier. Stoelting, Inc. cannot make
any claims against the carrier.
2.3 MACHINE INSTALLATION
WARNING
Installation must be completed by a qualified
electrician/refrigeration specialist.
Incorrect installation may cause personal injury,
severe damage to the machine and will void fac-
tory warranty.
Installation of the machine involves moving the machine
close to its permanent location, removing all crating, set-
ting in place, assembling parts, and cleaning.
PRIOR TO INSTALLATION
A. Locate a copy of the service contact file (info.txt).
B. Modify the info.txt file with information from the
service company using the instructions in the file.
C. Put the service contact file onto the root level of
a USB flash drive (do not put the files into any
folder).
INSTALLATION
A. Uncrate the machine.
B. Install the four casters. Turn the threaded end
into the machine until no threads are showing. To
level, turn out casters no more than 1/4” maximum,
then tighten all jam nuts.
C. The machine must be placed in a solid level
position. If adjustment is necessary, level the
machine by turning the bottom part of each leg
in or out.
NOTE
Accurate leveling is necessary for correct drainage
of freezing cylinder and to insure correct overrun.
D. Provide proper cooling requirements:
1. Air cooled machines require a minimum of 3”
(7,5cm) of space on both sides for proper air
circulation.
2. Water cooled machines require 1/2” NPT
supply and drain fittings.
E. Connect the power cord to the proper power
supply. Refer to the nameplate on the machine for
the proper supply. The unit must be connected to a
properly grounded receptacle. The electrical cord
furnished as part of the machine has a three prong
grounding type plug. The use of an extension cord
is not recommended. Do not use an adapter to
circumvent the grounding requirement.
WARNING
Do not alter or deform the electrical plug in any
way. Altering the plug to fit into an outlet of differ-
ent configuration may cause fire, risk of electrical
shock, product damage, and will void the warranty.

Owner’s Manual #513707 4 F231-2X Model Machines
2.4 INTELLITEC2™ SETUP
A. Disassemble, clean, lubricate and assemble the
machine following the steps in Section 3.
B. Fill the hoppers with sanitizer.
C. Connect power to the machine and press the
Main Power On/Off button.
MOTOR CALIBRATION
Before starting the motor calibration, be sure there is
sanitizer in the freezing cylinder.
A. Press the On/Off Left or On/Off Right button. The
Motor Calibration screen will be displayed.
B. Move the cursor over the Left side and press the
SEL button then move the cursor over the Right
side and press the SEL button.
NOTE
The motor calibration can be done for both sides
simultaneously.
C. After the calibration is complete, press the left
arrow button.
D. Drain the machine of sanitizer.
SETTING CONTACT INFORMATION (OPTIONAL)
A. Plug your USB flash drive into the control if it is
not already plugged in.
B. From the Current Status screen, press the left
arrow button to access the passcode selection
screen. Press the right arrow, SET, and then the
SEL button.
C. After the password is accepted, use the arrows to
move the cursor to the Modify Settings option and
press the SEL button. Then move the cursor to
the User Preferences and press the SEL button.
D. On the User Preferences screen move the cursor
to the Contact Information USB Update and press
the SEL button.
E. The screen will change and show “File Found” for
a quick second while it updates the information.
F. After updating the contact information, the screen
will show the Service Contact Information page.
G. Press the left arrow button to go back to the Current
Status screen and remove the USB flash drive.
Figure 2-1
Figure 2-2
Figure 2-4
Figure 2-3

Owner’s Manual #513707 5 F231-2X Model Machines
SETTING TIME AND DATE
A. Press the right arrow button.
B. Move the cursor to the Modify Settings option
and press the SEL button. Then move the cursor
to the Time and Date option and press the SEL
button and adjust the settings as required.
1. Press the SEL button to enter the Modify Time
and Date screen.
2. Move the cursor to the setting that needs to
be changed and press the SET button.
3. Use the arrow buttons to change the setting
and press the SET button to save the change.
C. Press the left arrow button until the Current Status
screen is displayed.
SETTING CONSISTENCY
A. Install the mix inlet regulator.
B. Fill the hopper with liquid mix.
C. Press the Push to Freeze button and let the
machine cycle 1-2 times.
D. Draw product from the barrel immediately after
the compressor cycles off after the fifth time and
test the product for consistency and temperature.
E. Adjust the product consistency by increasing or
decreasing the Consist Offset settings. These
settings are under the Modify Settings - Basic
Settings menu. Adjust the settings as follows:
1. If the product is too soft, increase the CutIn
Consist Offset.
2. If the product is too firm, decrease the CutIn
Consist Offset.
F. After the consistency is set, press the left arrow
button once so that the Modify Operating Settings
screen is displayed.
SETTING SERVE TIME AND OVERRUN DETAILS
A. Go to the Advanced Settings (2 of 3) screen and
scroll down to the Time to Dispense 16 oz option.
B. Time how long it takes to dispense 16 oz of product
into a cup and change the value in the control.
C. Measure to overrun of the product and change
the value in the control. To measure overrun, do
the following:
1. Zero a scale with an 8 - 16 oz cup.
2. Fill the cup with liquid mix and weigh it. Make
sure the mix is filled to the rim.
3. Fill the cup with frozen product. Make sure
there are no voids (air pockets) when filling.
4. Scrape the top of the cup with a straight edge.
5. Weigh the filled cup.
6. Calculate the overrun using the following
equation:
D. Change the value in the control.
E. Press the left arrow button until the Current Status
screen is displayed.
SETTING DISCHARGE PRESSURE ON WATER
COOLED MACHINES
A. Water cooled machines require the water
condenser valves to be adjusted to maintain a
225-235 psig discharge pressure.
When adjusting the discharge pressure the
machine must be under a full load with both
cylinders and the hopper running.
Figure 2-5

Owner’s Manual #513707 6 F231-2X Model Machines

Owner’s Manual #513707 7 F231-2X Model Machines
SECTION 3
INITIAL SET-UP AND OPERATION
3.1 OPERATOR’S SAFETY PRECAUTIONS
SAFE OPERATION IS NO ACCIDENT; observe these
rules:
A. Know the machine. Read and understand the
Operating Instructions.
B. Notice all warning labels on the machine.
C. Wear proper clothing.Avoid loose fitting garments,
and remove watches, rings or jewelry that could
cause a serious accident.
D. Maintain a clean work area. Avoid accidents by
cleaning up the area and keeping it clean.
E. Stay alert at all times. Know which switch, push
button or control you are about to use and what
effect it is going to have.
F. Disconnect power for maintenance. Never
attempt to repair or perform maintenance on the
machine until the main electrical power has been
disconnected.
G. Do not operate under unsafe operating conditions.
Never operate the machine if unusual or excessive
noise or vibration occurs.
3.2 OPERATING CONTROLS AND INDICATORS
Before operating the machine, it is required that the op-
erator know the function of each operating control. Refer
to Figure 3-1 for the location of the operating controls on
the machine. For the information regarding error codes
displayed on the control panel, refer to the troubleshooting
section of this manual.
A. INTELLITEC2 TOUCHPAD
Main Power On/Off
The Main Power button is used to supply power to the
IntelliTec2™ control, the freezing cylinder circuits and
the storage refrigeration system. When the machine is
first plugged in, the control defaults to the On status with
power to the hopper only. If the Main Power On/Off button
is pressed when the machine is on, the machine turns off
and a status message is displayed on the screen.
WARNING
High voltage will shock, burn or cause death. The
OFF-ON switch must be placed in the OFF position
prior to disassembling for cleaning or servicing. Do
not operate machine with panels removed.
Figure 3-1 Machine Controls
IntelliTec2™ Control
(See Figure 3-2)
Dispense
Rate Adjustor

Owner’s Manual #513707 8 F231-2X Model Machines
Help
Pressing the Help button displays help information depen-
dent on the cursor’s location. Pressing the Help button
again exits the help screen.
Selection Button (SEL)
The SEL button is used by technicians to select menu
options.
Set Button (SET)
The SET button is used by technicians to save changes
when modifying control settings.
On/Off Button
Power to the freezing cylinders can then be controlled
with the On/Off Left and On/Off Right switches.
Push to Freeze Button
Pressing the PUSH TO FREEZE button initiates “Serve
Mode”.
Clean Button
The CLEAN button initiates “Clean Mode”.
Arrow Buttons ()
The arrow buttons are used by technicians to navigate
through the control readings and settings.
B. DISPENSE RATE ADJUSTOR
The dispense rate adjustor is located under the header
panel, to the immediate right of the spigot handles. Turning
the knob counterclockwise decreases the dispense rate.
C. USB ACCESS PORT
The USB access port is located on the right side panel
of the machine. The port is used by technicians to import
firmware and export machine statistics.
D. LOW MIX ALARM (OPTIONAL)
An audible alarm will sound when the mix level in the hop-
per is low. Fill the hopper with mix to silence the alarm.
3.3 EMPTYING THE FREEZING CYLINDER
If the machine is empty, go to Section 3.4.
A. Make sure the Main Freezer Power is on. If the
IntelliTec2™ displays the Current Status Screen,
then the main power is on.
B. Turn off the freezing cylinders by pressing the
On/Off buttons.
C. Remove the hopper covers and remove the mix
inlet regulators from the hoppers.
D. Press the Clean button. After about 5 minutes
open the spigot to drain the mix.
E. Press the Clean buttons to stop the augers.
F. Fill each hopper with 1 gallon of cool tap water.
Optional: Use detergent solution instead of tap
water to make cleaning the parts easier after
disassembly.
G. Press the Clean buttons and let the augers rotate
for at least 30 seconds.
H. While the augers are rotating, scrub the hoppers
with a clean brush.
I. Drain the water out of the machine.
J. Press the Clean buttons again to stop the auger.
NOTE
If the water does not drain clear, repeat steps F
through J.
3.4 DISASSEMBLY OF MACHINE PARTS
Before using the machine for the first time, complete
machine disassembly, cleaning, and sanitizing proce-
dures need to be followed. Routine cleaning intervals and
procedures must comply with the local and state health
regulations. Inspection for worn or broken parts should
be made at every disassembly of the machine. All worn
or broken parts should be replaced to ensure safety to
both the operator and the customer and to maintain good
machine performance and a quality product. Check the
wear line on the auger flights on a regular basis (Fig. 3-3)
and replace as needed.
To disassemble the machine, refer to the following steps:
NOTE
The hopper covers have compartments for all
freezing cylinder parts. The covers help with parts
identification and prevent loss of parts. After dis-
assembly, place the freezing cylinder parts in the
hopper covers to transport them to and from the
washing station.
Figure 3-2 IntelliTec2 Control
Wear Line
Figure 3-3 Auger Flight Wear

Owner’s Manual #513707 9 F231-2X Model Machines
A. DISASSEMBLY OF FRONT DOOR
1. Press and hold the Main Freezer Power button
for three seconds to turn the power off.
2. Remove the rosette caps or spigot extensions if
installed.
3. Remove the knobs on the front door.
4. Remove the front door by pulling it off the studs.
5. Remove the spigot through the bottom of the front
door.
6. Remove all o-rings from parts by first wiping off
the lubricant using a clean towel. Then squeeze
the o-ring upward to form a loop (Fig. 3-4). Roll
the o-ring out of the groove.
B. DISASSEMBLY OF AUGER
1. Remove the front auger support and bushing.
2. Remove the auger assembly from the machine.
Pull the auger out of the freezing cylinder slowly.
As the auger is being pulled out, carefully remove
each of the plastic flights with springs.
3. Keep the rear of the auger tipped up once it is
clear of the freezing cylinder to prevent the rear
seal assembly from dropping.
4. Wipe the lubricant off of the hex end of the auger
with a paper towel. Remove the rear seal assembly
(Fig. 3-5).
5. Wipe any excess lubricant off the rear seal.
6. Unscrew the springs from the auger flights.
3.5 CLEANING DISASSEMBLED PARTS
Disassembled parts require complete cleaning, sanitizing
and air drying before assembling. Local and state health
codes dictate the procedure required. Some state health
codes require a four sink process (pre-wash, wash, rinse,
sanitize, air dry), while others require a three sink process
(without the pre-wash step). The following procedures
are a general guideline only. Consult your local and state
health codes for the procedures required in your location.
A. Disassemble all parts. (Refer to Section 3.4 for
the disassembly of machine parts)
B. Place all parts in 90° to 110°F (32°C to 43°C)
mild detergent water and wash thoroughly. Use
the brushes that shipped with the machine to
clean all holes in the front door, flights, mix pickup
assembly, etc.
C. Rinse all parts with clean 90° to 110°F (32°C to
43°C) water.
D. Place all parts in a sanitizing solution for at least
1 minute, then remove and let air dry completely
before assembling in machine.
3.6 CLEANING THE MACHINE
INTERIOR
A. Using detergent solution and the large barrel
brush provided, clean the hoppers and freezing
cylinders.
NOTE
Make sure to thoroughly clean the rear seal surface
on the inside of the freezing cylinders.
C. Wrap the brush in a clean cloth and thoroughly
dry the hoppers and freezing cylinders.
D. Remove the drip tray and drain tray. Clean and
replace the trays.
EXTERIOR
The exterior should be kept clean at all times to preserve
the luster of the stainless steel. A high grade of stainless
steel has been used on the machine to ease cleanup. To
remove spilled or dried mix, wash the exterior with 90° to
110°F (32°C to 43°C) mild detergent water and wipe dry.
Do not use highly abrasive materials, as they will mar the
finish. Use a soft cloth or sponge to apply the solution.
For best results, wipe with the grain of the steel.
Figure 3-4 Removing O-Ring
Figure 3-5 Rear Seal Assembly

Owner’s Manual #513707 10 F231-2X Model Machines
3.7 ASSEMBLING MACHINE
To assemble the machine parts, refer to the following steps:
NOTICE
Total Blend sanitary lubricant, Petrol-Gel sanitary
lubricant, or equivalent must be used when lubrica-
tion of machine parts is specified.
Total Blend can be used in place of two products. It
is used to lubricate parts and also used in place of
spline lubricant. Do not use more than one packet
of Total Blend per freezing cylinder.
NOTICE
The United States Department of Agriculture and
the Food and Drug Administration require that lubri-
cants used on food processing equipment be certi-
fied for this use. Use lubricants only in accordance
with the manufacturer’s instructions.
A. ASSEMBLE THE REAR SEALS
1. Install the rear seal o-rings onto the augers.
Lubricate the outside of the o-rings with a generous
amount Total Blend lubricant.
2. Lubricate the inside metal surface of the rear seal
(Fig. 3-6) and install it onto the auger shaft. DO
NOT lubricate the outside of the rear auger seal.
3. Lubricate the hex drive ends of the auger with a
small amount of Total Blend lubricant.
B. ASSEMBLE THE AUGERS
1. Screw the springs onto the studs in the plastic
flights. The springs must be screwed into the
flights completely to provide proper compression.
2. Install the two plastic flights onto the rear of the
auger and insert it part way into the freezing
cylinder.
3. Install the remaining plastic flights, push the auger
into the freezing cylinder and rotate slowly until
the auger engages the drive shaft.
4. Apply a thin layer of sanitary lubricant to the inside
and outside of the auger support bushing. Install
the bushing onto the auger support and install the
auger support into the front of the auger. Rotate
the auger support so that one leg of the support
points straight up.
C. ASSEMBLE THE FRONT DOOR
1. Install the o-rings onto the spigot body and apply
a thin layer of sanitary lubricant to the o-rings.
Install the spigot body through the bottom of the
front door.
2. Fit the front door o-ring into the groove on the
rear of the front door.
3. Place the front door assembly on the mounting
studs and the push front door against the machine
carefully.
NOTE
Make sure the pins of the front door do not touch
the legs of the auger support.
4. Secure the front door to the machine by placing
the knobs on the studs and tightening until finger
tight. Tighten in a crisscross pattern. Do not
overtighten. Proper o-ring seal can be observed
through the transparent front door.
5. Optional: Install the rosette caps or spigot
extensions.
3.8 SANITIZING
Sanitizing must be done after the machine is clean and
just before the machine is filled with mix. Sanitizing the
night before does not ensure sanitization the next day.
However, you should always clean the machine and parts
after using it.
NOTE
The United States Department of Agriculture and
the Food and Drug Administration require that all
cleaning and sanitizing solutions used with food
processing equipment be certified for this use.
When sanitizing the machine, refer to local sanitary regu-
lations for applicable codes and recommended sanitizing
products and procedures. The frequency of sanitizing
must comply with local health regulations. Mix sanitizer in
quantities of no less than 2 gallons of 90°F to 110°F (32°C
to 43°C) water. Allow sanitizer to contact the surfaces to
be sanitized for 5 minutes. Any sanitizer must be used
only in accordance with the manufacturer’s instructions
and provide a 100 parts per million strength solution.
Figure 3-6 Lubricate Rear Seal

Owner’s Manual #513707 11 F231-2X Model Machines
A. Prepare 2 gallons of Stera-Sheen sanitizing
solution following the manufacturer’s instructions.
B. Install the mix inlet regulator into the hopper with
the air tube towards the front of the machine.
NOTE
Do not twist the mix inlet regulator when installing.
C. Pour the sanitizing solution into the hopper.
D. Make sure the display shows the freezing cylinder
is off. If it is not, press the On/Off button to turn
it off.
NOTE
If the freezing cylinder is not off, the control will
not go into Clean mode. This is to protect from
accidentally going into Clean mode with product
in the cylinder.
E. Press the CLEAN button.
F. Check for leaks.
1. Check for leaks at the front door seal.
2. Check the drain tray located under the front
door for leaks coming from the rear of the rear
auger seal.
G. Use a sanitized soft bristle brush dipped in
sanitizing solution to clean the hopper sides,
the mix inlet regulator, and the underside of the
hopper cover.
H. After the five minute timer expires, open the spigot
to drain the sanitizing solution.
I. Press the CLEAN button to stop the auger. Allow
the freezing cylinder to drain completely.
The machine is now sanitized and ready for adding mix.
3.9 FREEZE DOWN AND OPERATION
A. Sanitize immediately before use.
B. Fill the hopper with at least 2.5 gallons of mix.
C. Place a container under the spigot and open the
spigot to allow the mix to flush out about 8 ounces
(0.23 liters) of sanitizing solution and liquid mix.
D. Press the On/Off button to turn on the freezing
cylinder.
E. Allow the freezing cylinder to fill. Then press the
PUSH TO FREEZE button.
F. When the product is ready, the display reads
“SERVE”. Open the spigot to dispense product.
NOTE
If the product consistency needs to be adjusted,
use the Technician passcode and go to the Basic
Settings menu. Adjust the CutIn Consistency Off-
set higher to increase the consistency or lower to
decrease the consistency. Make adjustments in
increments of 5 for best results.
G. The machine dispenses product at a reasonable
draw rate. If the machine is overdrawn, the result
is a soft product or a product that will not dispense
at all. If this occurs, allow the machine to run for
approximately 30 seconds before dispensing more
product.Adispense rate adjustor is located under
the header panel, to the immediate right of the
spigot handle. Turning the knob counterclockwise
decreases the dispense rate.
H. Do not operate the machine when the MIX
LOW message is displayed. Refill the hopper
immediately.
NOTE
After a preset number of freezing cycles in Serve
mode, the control enters sleep mode and remains
there until someone draws product or presses the
PUSH TO FREEZE button. In the sleep mode, the
machine keeps the product below 41°F (5°C). Sleep
modes do not take the place of cleaning and sanitiz-
ing. Federal, State, and local regulatory agencies
determine frequency of cleaning and sanitizing.
Figure 3-7 Mix Inlet Regulator
Position Air
Tube Towards
Front of Machine

Owner’s Manual #513707 12 F231-2X Model Machines
3.10 MIX INFORMATION
Mix can vary considerably from one manufacturer to
another. Differences in the amount of butterfat content
and quantity and quality of other ingredients have a
direct bearing on the finished frozen product. A change
in machine performance that cannot be explained by a
technical problem may be related to the mix.
Proper product serving temperature varies from one
manufacturer’s mix to another. Mixes should provide a
satisfactory product in the 20°F to 24°F range. Diet and
low-carb mixes typically freeze to proper consistency at
higher temperatures.
When checking the temperature, stir the thermometer in
the frozen product to get an accurate reading.
Old mix, or mix that has been stored at too high a tempera-
ture, can result in a finished product that is unsatisfactory.
To retard bacteria growth in dairy based mixes, the best
storage temperature range is between 33° to 38°F (0.5°
to 3.3° C).

Owner’s Manual #513707 13 F231-2X Model Machines
SECTION 4
MAINTENANCE AND ADJUSTMENTS
This section is intended to provide maintenance personnel
with a general understanding of the machine adjustments.
It is recommended that any adjustments be made by a
qualified person.
4.1 FINE CONSISTENCY ADJUSTMENT
Product consistency can be adjusted on the Fine Consis-
tency Adjustment screen. To get to the Fine Consistency
Adjustment Screen, press the right arrow then the SEL
button from the Current Status screen. Then move the
cursor to the Fine Consistency Adjustment option and
press the SEL button.
Increasing the Fine Consistency number increases the
product consistency (firmer product). The Consistency
Limits show the Fine Consistency adjustment added to
the Consistency number.
4.2 DRIVE BELT TENSION ADJUSTMENT
To check belt tension, follow the steps below:
A. Remove the back and side panel.
B. Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
50-55 lbs. If an adjustment is necessary, complete
the following:
1. Loosen the four motor plate retaining nuts.
2. Adjust belt tension nut.
3. Make sure the motor plate aligns with the plate
brace.Adjust the motor alignment nut if it does
not.
4. Retighten the four motor plate retaining nuts.
NOTE
Belt life will be increased if new drive belts are
tightened after two or three weeks of operation.
4.3 CONDENSER CLEANING (AIR-COOLED
MACHINES)
The air-cooled condenser requires periodic cleaning. To
clean, refer to the following procedures.
A. Disconnect power to the machine
B. Remove the Phillips head screws from the right
side panel, and remove the panel.
WARNING
Hazardous voltage
Make sure the machine is off when disassembling
for servicing. The machine must be disconnected
from electrical supply before removing any access
panel. Failure to disconnect power before servicing
could result in death or serious injury.
Figure 4-1 Fine Consistency Adjustment Belt Tension
Nut Motor Alignment
Nut
Motor Plate
Retaining Nuts
Motor Plate
Brace
Motor Mounting
Plate
Belt Tension
Nut Motor Alignment
Nut
Motor Plate
Retaining Nuts
Motor Plate
Brace
Motor Mounting
Plate
Figure 4-2 Belt Tension Adjustment

Owner’s Manual #513707 14 F231-2X Model Machines
C. To remove a condenser filter, grasp the top and
pull off. Visually inspect the filter for dirt. If it is
dirty, shake or brush excess dirt off of it and wash
it in warm, soapy water. Once the filter is clean,
rinse it thoroughly in warm, clear water and shake
dry, taking care not to damage the it in any way.
NOTE
If the condenser is not kept clean, refrigeration ef-
ficiency will be lost.
4.4 PREVENTATIVE MAINTENANCE
It is recommended that a preventative maintenance
schedule be followed to keep the machine clean and
operating properly. The following steps are suggested as
a preventative maintenance guide.
The United States department of agriculture and the food
and drug administration require that lubricants used in
food zones be certified for this use. Use lubricants only
in accordance with the manufacturer’s instructions.
A. Daily checks
Check for any unusual noise or condition and
repair immediately.
B. Monthly checks
Check the condenser for dirt and clean if
necessary.
C. Quarterly Checks
Check drive belts for wear and tighten belts if
necessary.
4.5 EXTENDED STORAGE
Refer to the following steps for storage of the machine
over any long period of shutdown time:
A. Thoroughly clean all parts that come in contact
with mix with warm detergent water. Rinse in clear
water and dry all parts. Do not sanitize.
NOTE
Do not let cleaning solution stand in the freezing
cylinder or hopper during the shutdown period.
B. Remove, disassemble, and clean the front door,
and auger shaft. Leave disassembled during the
shutdown period.
C. Place the auger flights and auger support bushing
in a plastic bag with a moist paper towel. This
prevents them from becoming brittle if exposed
to dry air over an extended period of time (over
30 days).
D. For water-cooledmachines that areleft in unheated
buildings, or buildings subject to freezing, the water
must be shut off and disconnected. Disconnect
the water inlet fitting. The fitting is located at the
rear of the machine. Run the compressor for 2 - 3
minutes to open water valve (the front door must
be attached for the compressor to run). Blow
out all water through water inlet. Drain the water
supply line coming to the machine. Disconnect
the water outlet fitting.
E. Press the Main Power On/Off button to turn the
machine off.
F. Disconnect the machine from the source of
electrical supply.