Vollrath Stoelting SF144 I2 User manual

Model SF144 I2 / SF121 I2
OPERATORS MANUAL
Manual No. 513677 Rev.0

This manual provides basic information about the machine. Instructions and suggestions are
given covering its operation and care.
The illustrations and specifications 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 pro-
vide new parts for freezers built prior to date of change.
DO NOTATTEMPT 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 the com-
pany at the following location:
STOELTING Ph: 800-558-5807
502 Hwy. 67
Kiel, WI 53042 Fax: [phone]
© 2013 Stoelting, LLC, All Rights Reserved
Owner’s Manual
For SF144 I2
Stoelting Counter-Top Gravity Machine

Safety Alert Symbol:
This symbol Indicates danger, warning or caution.
Attention is required in order to avoid serious per-
sonal 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.
CAUTION
The signal word “CAUTION” indicates a potentially
hazardous situation, which, if not avoided, may result
in minor or moderate injury and equipment/property
damage.
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 defini-
tions are provided to assist the reader.
The purpose of safety symbols is to attract your at-
tention 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.
WARNING
The signal word “WARNING” indicates a potentially
hazardous situation, which, if not avoided, may result
in death or serious injury and equipment/property
damage.
CAUTION
The signal word “CAUTION” not preceded by the
safety alert symbol indicates a potentially hazardous
situation, which, if not avoided, may result in equip-
ment/property damage.
NOTICE
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety or personnel or equipment/property.

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
3 Initial Set-Up and Operation
3.1 Operator’s Safety Precautions ...................................................................5
3.2 Operating Controls and Indicators..............................................................5
3.3 Disassembly of Machine Parts...................................................................6
3.4 Cleaning Disassembled Parts ....................................................................8
3.5 Sanitizing Machine Parts............................................................................8
3.6 Cleaning the Machine.................................................................................8
3.7 Assembling Machine ..................................................................................8
3.8 Sanitizing....................................................................................................9
3.9 Freeze Down and Operation ......................................................................10
3.10 Fine Consistency Adjustment.....................................................................11
3.11 Mix Information...........................................................................................11
4 Maintenance and Adjustments
4.1 Drive Belt Tension Adjustment....................................................................13
4.2 Condenser Cleaning (Air-Cooled Machines)..............................................13
4.3 Preventative Maintenance..........................................................................13
4.4 Extended Storage.......................................................................................14
5 Troubleshooting
5.1 Error Codes................................................................................................15
5.2 Troubleshooting..........................................................................................15
5.3 Troubleshooting - Machine
6 Replacement Parts
6.1 Decals and Lubrication...............................................................................19
6.2 Auger Shaft and Faceplate Parts ...............................................................20
6.3 Blender Parts..............................................................................................22

Owner’s Manual #513677 1 F144I2, SF144I2 and SF121I2 Model Machines
SECTION 1
INTRODUCTION
1.1 DESCRIPTION
The Stoelting F144I2, SF144I2 and SF121I2 counter-top
machines are gravity fed. The machines are equipped
with the IntelliTec2™ control which provides a uniform
product. The machines are designed to operate with
almost any type of commercial soft serve or non-dairy
mixes available, including: ice milk, ice cream, yogurt,
and frozen dietary desserts.
This manual is designed to assist qualified service
personnel and operators in the installation, operation
and maintenance of the Stoelting F144I2, SF144I2 and
SF121I2 gravity machines.
Figure 1-2 Specification
1.2 SPECIFICATIONS
Figure 1-1 Model SF144 I2

Owner’s Manual #513677 2 F144I2, SF144I2 and SF121I2 Model Machines
Model F144 I2 / SF144 I2
Dimensions Machine with crate
width 22’’ (55,9 cm) 28’’ (71,1 cm)
height 34-3/4’’ (88,3 cm) 40-1/4’’ (102,2 cm)
depth 28-1/2’’ (72,4 cm) 35-1/4’’ (89,5 cm)
Weight 385 lbs (174,6 kg) 470 lbs (213,1 kg)
Electrical 1 Phase, 208-240 VAC, 60Hz 3 Phase, 208-240 VAC, 60Hz
running amps 12A 10A
connection type NEMA6-20P power cord provided NEMA L15-20P power cord provided
International Option 1 Phase, 220-240 VAC, 50Hz
Compressor 12,000 Btu/hr
Drive Motor Two - 3/4 hp
Air Flow Air cooled units require 3” (7,6 cm) air space on both sides
Plumbing Fittings Water cooled units require 3/8” N.P.T. water and drain fittings.
Hopper Volume Two - 3 gallon (11,35 liters)
Freezing Cylinder
Volume Two - 0.85 gallon (3,22 liters)
Model SF121 I2
Dimensions Machine with crate
width 22’’ (55,9 cm) 28’’ (71,1 cm)
height 34-3/4’’ (88,3 cm) 40-1/4’’ (102,2 cm)
depth 28-1/2’’ (72,4 cm) 35-1/4’’ (89,5 cm)
Weight 385 lbs (174,6 kg) 470 lbs (213,1 kg)
Electrical 1 Phase, 208-240 VAC, 60Hz 3 Phase, 208-240 VAC, 60Hz
running amps 12A 10A
connection type NEMA6-20P power cord provided NEMA L15-20P power cord provided
International Option 1 Phase, 220-240 VAC, 50Hz
Compressor 12,000 Btu/hr
Drive Motor Two - 3/4 hp
Air Flow Air cooled units require 3” (7,6 cm) air space on both sides
Plumbing Fittings Water cooled units require 3/8” N.P.T. water and drain fittings.
Hopper Volume Two - 3 gallon (11,35 liters)
Freezing Cylinder
Volume Two - 0.85 gallon (3,22 liters)
1.2 SPECIFICATIONS

Owner’s Manual #513677 3 F144I2, SF144I2 and SF121I2 Model Machines
SECTION 2
INSTALLATION INSTRUCTIONS
2.1 SAFETY PRECAUTIONS
Do not attempt to operate the machine until the safety
precautionsandoperatinginstructionsinthismanualare
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.Thelabelshavebeendesignedtowithstand
washing and cleaning. All labels must remain legible for
thelifeofthemachine.Labelsshouldbecheckedperiodi-
callytobesuretheycanberecognizedaswarninglabels.
If danger, warning or caution labels are needed, indicate
thepartnumber,typeoflabel,locationoflabel,andquantity
required along with your address and mail to:
STOELTING
ATTENTION: Customer Service
502 Hwy. 67
Kiel, Wisconsin 53042
2.2 SHIPMENT AND TRANSIT
Themachinehasbeenassembled,operatedandinspected
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
arriveinexcellentcondition.THECARRIERISRESPON-
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
concealeddamageand/or shortage isfoundlater, advise
the carrier within 10 days and request inspection. The
customermustplaceclaimfordamagesand/orshortages
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.
A. Uncrate the machine.
B. Accuratelevelingisnecessaryforcorrectdrainage
of machine barrel and to insure correct overrun.
Placeabubblelevelontopofthemachineateach
corner to check for level condition. If adjustment
is necessary, level the machine by turning the
bottom part of each leg in or out.
C. The machine has a base gasket that must be
installed. Separate the gasket and install it with
theseam totheback.Make suretheangledside
of the gasket is facing up.
D. Correct ventilation is required. The right side of
the machine is the air intake and left side is the
discharge. Both sides must have 3” clearance.
CAUTION
Failure to provide adequate ventilation will void
warranty.
E. Connect the power cord to the proper power
supply. The plug connected to the machine is
either a NEMA 6-20P or L15-20P. Check the
nameplateonyourmachineforpropersupply.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,ifnecessaryuseonewithasize12
gaugeorheavierwithgroundwire.Donotusean
adaptertocircumventthegroundingrequirement.
WARNING
Do not alter or deform electrical plug in any way.
Alteringtheplugtofitintoan outlet of differentcon-
figuration may cause fire, risk of electrical shock,
product damage and will void warranty.
Figure 2-1 Space and Ventilation Requirements

Owner’s Manual #513677 4 F144I2, SF144I2 and SF121I2 Model Machines

Owner’s Manual #513677 5 F144I2, SF144I2 and SF121I2 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. Wearproperclothing.Avoidloosefittinggarments,
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
machineuntilthemainelectricalpowerhasbeen
disconnected.
G. Donotoperateunderunsafeoperatingconditions.
Neveroperatethemachineifunusualorexcessive
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
displayedonthecontrolpanel,refertothetroubleshooting
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
powertothehopperonly.IftheMainPowerOn/Offbutton
is pressed when the machine is on, the machine will turn
offand a statusmessagewillbedisplayed on the screen.
WARNING
High voltage will shock, burn or cause death. The
OFF-ONswitchmustbe placed intheOFFposition
priortodisassemblingforcleaningorservicing. Do
not operate machine with panels removed.
Figure 3-1 Machine Controls
IntelliTec2™ Control
(See Figure 3-2)
Dispense
RateAdjustor
Blender
Power On/Off
Blender
Activation Switch

Owner’s Manual #513677 6 F144I2, SF144I2 and SF121I2 Model Machines
Help
Pressing the Help button will display help information
dependant on the cursor’s location. Pressing the Help
button again will exit 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. SPIGOT SWITCH
Thespigotswitch is mountedtothe spigot camassembly
behind the header panel. When the spigot is opened to
dispenseproduct,thespigotswitchopensandthe“Serve
Mode” begins.
C. DISPENSE RATE ADJUSTOR
The dispense rate adjustor is located under the header
panel,totheimmediaterightofthespigothandles.Turning
theknobcounterclockwisewilldecreasethedispenserate.
D.BLENDERPOWERSWITCH(SF144MODELSONLY)
The blender power switch is a two position toggle switch
used to supply power to the blender. When the switch is
in the OFF position, the agitator will not turn. When the
switch is in the ON position, the agitator will be activated
every time the blender activation switch is pressed.
E. BLENDER ACTIVATION SWITCH
The blender activation switch is a two speed, momentary
contactswitch thatwillactivatetheagitator toblendprod-
uct when pressed and held. The HIGH speed position is
used when blending product. The LOW speed position
is used during cleaning procedures.
F. 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.
3.3 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 codes. 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
boththeoperatorandthe 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. Frequency of cleaning must
comply with the local health regulations.
To disassemble the machine, refer to the following steps:
A. REMOVING MIX
For the first time cleaning the machine, skip to part
B. Disassembly of Front Door.
1. Press the Clean button. After mix has melted
(about 5 minutes) open the spigot to drain the
mix.
2 Fill the hopper with 2 gallons (8 liters) of cool tap
water.
3. Press the Clean button to run the machine.After
30 seconds press the Clean button again to stop
the auger.
Figure 3-2 IntelliTec2™ Control
Wear Line
Figure 3-3 Auger Flight Wear

Owner’s Manual #513677 7 F144I2, SF144I2 and SF121I2 Model Machines
4. Drain the water out of the machine.
NOTE
If the water does not drain clear, repeat steps 2-4.
5. UseStera-Sheenorequivalentsanitizingsolution
mixedaccordingtomanufacturer’sinstructionsto
provide a 100 parts per million strength solution.
Mix sanitizer in quantities of no less than 2
gallonsof 90°to110°F(32°Cto43°C)water.Any
sanitizer must be used only in accordance with
the manufacturer’s instructions.
6. Fillatallcupwiththesanitizingsolution.Pourthe
remaining sanitizer into the hopper.
7. Using brushes provided, scrub the hopper.
8. Press the low speed on the blender activation
switch and allow the agitator to run for 10-15
seconds. (Fig. 3.4)
9. After 5 minutes, drain the sanitizer out of the
freezing cylinder.
B. DISASSEMBLY OF FRONT DOOR
1. TurnthemachineoffbypressingtheMainFreezer
PowerOff/Onbutton ontheIntelliTec2™ control.
2. Remove the knobs on the front door.
3. Remove the front door by pulling it off the studs.
4. Removethespigotthroughthebottomofthefront
door.
5. Remove all o-rings from parts by first wiping off
thelubricationusingacleantowel.Thensqueeze
the o-ring upward to form a loop (Fig. 3-5). 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 machine barrel slowly.
Astheaugerisbeingpulledout,carefullyremove
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. Wipethe spline lubricant offofthehexendofthe
auger with a paper towel. Remove the rear seal
assembly (Fig. 3-6).
5. Unscrew the springs from the auger flights.
Figure 3-5 Removing O-Ring
Figure 3-6 Rear Seal Assembly
Figure 3-4 Cleaning Agitator

Owner’s Manual #513677 8 F144I2, SF144I2 and SF121I2 Model Machines
B. DISASSEMBLY OF BLENDER
1. Remove the clear acrylic splash guard from the
blender.
2. Remove the blender’s agitator from the agitator
shaft. Grasp the agitator shaft in one hand and
turn the agitator in a clockwise direction with the
other hand (Fig. 3-7)
3.4 CLEANING DISASSEMBLED PARTS
Disassembled machine parts require complete cleaning,
sanitizingandairdryingbeforeassembling.Localandstate
health codes will dictate the procedure required. Some
statehealthcodesrequire a four sink process(pre-wash,
wash,rinse, sanitize,airdry), whileothersrequireathree
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. Prepare Stera-Sheen or equivalent cleaner in
2 gallons of 90° to 110°F (32° to 43°C) water
following manufacturers instructions. Place all
parts in the solution and clean with provided
brushes.
B. Rinse all parts with clean 90° to 110°F (32° to
43°C) water.
C. Wash the hopper and freezing cylinder with the
Stera-Sheen solution and brushes provided.
D. Cleantherearsealsurfacesfromtheinsideofthe
freezing cylinder with the Stera-Sheen Solution.
3.5 SANITIZING MACHINE PARTS
A. UseStera-Sheenorequivalentsanitizingsolution
mixedaccordingtomanufacturer’sinstructionsto
provide a 100 parts per million strength solution.
Mix sanitizer in quantities of no less than 2
gallonsof 90°to110°F(32°Cto43°C)water.Any
sanitizer must be used only in accordance with
the manufacturer’s instructions.
B. Place all parts in the sanitizing solution for 5
minutes, then remove and let air dry completely
before assembling in machine.
3.6 CLEANING THE MACHINE
The exterior should be kept clean at all times to preserve
the luster of the stainless steel.Ahigh 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) Stera-Sheen solution or equivalent
cleaner 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.
A. Clean the rear seal surface from inside of the
freezing cylinder.
B. Using sanitizing solution and the large barrel
brush provided, sanitize the freezing cylinder by
dipping the brush in the sanitizing solution and
brushing the inside of the freezing cylinder.
NOTE
Do not let sanitizing solution sit overnight in the
freezing cylinder.
C. Remove the drip tray by pulling from the front
panel. Clean and replace the drip tray.
3.7 ASSEMBLING MACHINE
Toassemblethemachineparts,refertothefollowingsteps:
NOTICE
Petrol-Gel sanitary lubricant or equivalent must be
usedwhenlubrication of machinepartsis specified.
NOTICE
The United States Department of Agriculture and
theFoodand DrugAdministration requirethatlubri-
cants used on food processing equipment be certi-
fied for this use. Use lubricants only in accordance
with the manufacturer’s instructions.
A. Assemble all o-rings onto parts dry, without
lubrication. Then apply a thin film of sanitary
lubricant to exposed surfaces of the o-rings.
CAUTION
Hazardous Moving Parts
Revolving blender agitator shaft can grab and
cause injury. Remove watches and jewelry prior
to operating the blender. Keep hands and clothing
away from revolving agitator. The Blender Power
switch must be placed in the OFF position when
not in use.
Figure 3-7 Removing Agitator

Owner’s Manual #513677 9 F144I2, SF144I2 and SF121I2 Model Machines
B. Install the rear seal o-ring. Lubricate the outside
of the rear seal o-ring with sanitary lubricant.
NOTE
Do not put Petrol-Gel directly onto the auger shaft.
C. Lubricate the inside metal surface of the rear
seal and install it onto the auger shaft. DO NOT
lubricate the outside of the rear auger seal (Fig.
3-8).
D. Lubricate the hex drive end of the auger with a
smallamountofsplinelubricant.Asmallcontainer
of spline lubricant is shipped with the machine.
E. Screw the springs onto the studs in the plastic
flights. The springs must be screwed into the
flightscompletelytoprovidepropercompression.
NOTE
Make sure the rear of the freezing cylinder is clean
and dry before installing the auger shaft. If the
freezing cylinder is dirty or if there is moisture, the
freezing cylinder may leak at the rear seal.
F. Install the two plastic flights onto the rear of the
auger and insert it part way into the freezing
cylinder.
G. Installtheremainingplasticflights,pushtheauger
into the freezing cylinder and rotate slowly until
the auger engages the drive shaft.
H. Applyathinlayerofsanitarylubricanttotheinside
and outside of the auger support bushing. Install
thebushingontotheaugersupportandinstallthe
auger support into the front of the auger. Rotate
the auger support so that one leg of the support
points straight up.
I. Apply a thin layer of sanitary lubricant to the
o-rings on the spigot body and install the spigot
body through the bottom of the front door.
K. Apply a thin film of sanitary lubricant to the door
seal o-ring and fit it into the groove on the rear
of the front door.
M. Place the front door assembly on the mounting
studsandthepushfrontdooragainstthemachine
carefully.
N. Secure the front door to the machine by placing
the knobs on the studs and tightening until finger
tight.Donotovertighten.Apropero-ringsealcan
be observed through the transparent front door.
O. Thread the agitator onto the blender shaft and
install the clear acrylic splash guard.
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 is not effective. 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.
Whensanitizingthe machine,referto localsanitaryregu-
lationsforapplicablecodesandrecommendedsanitizing
products and procedures. The frequency of sanitizing
must comply with local health regulations. Mix sanitizer
accordingtomanufacturer’sinstructions toprovidea 100
partspermillionstrength solution. Mix sanitizer inquanti-
ties 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.
A. Prepare 2 gallons of Stera-Sheen sanitizing
solutionfollowingthemanufacturer’sinstructions.
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.
Figure 3-9 Mix Inlet Regulator
Position Air
Tube Towards
Front of Machine
Figure 3-8 Lubricate Rear Seal

Owner’s Manual #513677 10 F144I2, SF144I2 and SF121I2 Model Machines
C. Fillatallcupwiththesanitizingsolution.Pourthe
remaining sanitizer into the hopper.
D. Makesurethedisplayshowsthefreezingcylinder
is off. If it is not, press the On/Off Left or On/Off
Right 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 ac-
cidentally going into Clean mode.
E. Press the CLEAN button.
F. Check for leaks.
1. Check for leaks at the front door seals.
2. Check the drain tray located under the front
door for leaks coming from the rear of the rear
auger seal.
G. Usingasanitizedsoftbristlebrush(orequivalent)
dipped in sanitizing solution, clean the hopper
sides, mix inlet regulator and underside of the
hopper cover.
H. To sanitize the blender agitator, completely
immerse the blender’s agitator shaft in the cup
withthesanitizersolution(Fig.3-10).Donotwipe
dry.
I. After five minutes, open the spigot to expel
sanitizing solution. Drain all of the solution from
the machine.
J. Whenthesolutionhasdrained,presstheCLEAN
buttontostoptheauger.Allowthefreezingcylinder
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. Makesurethedisplayshowsthefreezingcylinder
is off. If it is not, press the On/Off Left or On/Off
Right button to turn it off.
C. Fill the hopper with at least 2.5 gallons of mix.
D. Place a container under the spigot and open the
spigottoallowthemixtoflushoutabout8ounces
(0.23 liters) of sanitizing solution and liquid mix.
E. Press the On/Off button for the cylinder.
F. Press the PUSH TO FREEZE button.
NOTE
After the drive motor starts, there is a 3-second
delay before the compressor starts.
G. When the product is at 75% consistency, the
display will read “SERVE”. Open the spigot to
dispense product.
H. Tousetheblender,turntheblenderpowerswitch
ON. Fill a cup with the desired ingredients and
put the blender agitator into the cup. Press the
blender activation switch to HIGH. Release the
activation switch when blending is complete.
I. The machine dispenses product at a reasonable
drawrate.If themachineisoverdrawn, theresult
isasoftproductoraproductthatwillnotdispense
at all. If this occurs, allow the machine to run for
approximately30secondsbeforedispensingmore
product.Adispenserateadjustorislocatedunder
the header panel, to the immediate right of the
spigothandle.Turningtheknobcounterclockwise
will decrease the dispense rate.
J. Do not operate the machine when the MIX LOW
message is displayed. Refill the mix container
immediately. NOTE
After a preset number of freezing cycles in Serve
mode,thecontrolwillenter sleep mode and remain
there until someone draws product or presses the
PUSH TO FREEZE button. In the sleep mode, the
machine will keep the product below 41°F (5°C).
Sleep modes do not take the place of cleaning
and sanitizing. Federal, State, and local regulatory
agencies determine frequency of cleaning and
sanitizing.
Figure 3-4 Cleaning Agitator

Owner’s Manual #513677 11 F144I2, SF144I2 and SF121I2 Model Machines
3.10 FINE CONSISTENCY ADJUSTMENT
If the product consistency needs to be adjusted, use the
Fine ConsistencyAdjustment. To access the setting, the
Associate level password must be entered. Follow the
steps below for the Fine Consistency Adjustment.
A. Press the left arrow from the Current Status
screen.
B. Press the right arrow then the SEL button from
the Password screen. After the password is
accepted,movethecursortotheFineConsistency
Adjustment option and press the SEL button.
C. OntheFineConsistencyAdjustmentscreen,press
the SELbutton and use the arrows to modify the
setting. Adjust the Fine Consistency higher to
increase the consistency or lower to decrease
the consistency.
D. PresstheSETbuttontosavethechanges.Make
adjustments in increments of 5 for best results.
3.11 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.
Oldmix,ormixthathasbeenstoredattoohighatempera-
ture,canresultinafinishedproductthatisunsatisfactory.
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 #513677 12 F144I2, SF144I2 and SF121I2 Model Machines

Owner’s Manual #513677 13 F144I2, SF144I2 and SF121I2 Model Machines
SECTION 4
MAINTENANCE AND ADJUSTMENTS
Thissectionisintendedtoprovidemaintenancepersonnel
withageneralunderstandingofthemachineadjustments.
It is recommended that any adjustments be made by a
qualified person.
4.1 DRIVE BELT TENSION ADJUSTMENT
To check belt tension, refer to Figure 4-1 and follow the
steps below:
A. Remove the back panel.
B. Use a Burroughs Belt Tension Gauge to set the
tension for the drive belt. Set the belt tension to
35-40 lbs.
C. If an adjustment is necessary, loosen the four
motor plate retaining nuts, adjust belt tension
then retighten the four nuts.
D. Using a straightedge, check that the drive motor
pulley is aligned with the speed reducer pulley.
Align the pulley if necessary.
NOTE
Belt life will be increased if new drive belts are
tightened after two or three weeks of operation.
4.2 CONDENSER CLEANING (AIR-COOLED
MACHINES)
Themachinehasanair-cooledorwater-cooledcondenser.
Theair-cooledcondenserisacoppertubeandaluminum
fin type. Condensing is totally dependent upon airflow. A
pluggedcondenser,orrestrictionsinthelouveredpanelwill
restrict airflow. This will lower the capacity of the system
and damage the compressor. The condenser must be
kept clean of dirt and grease. The machine must have a
minimum of 3” (7.6 cm) of ventilation on the sides of the
unitforfreeflowofair.Makesurethemachineisnotpulling
over 100° F (37° C) air from other equipment in the area.
Thewater-cooledcondenserisatubeandshelltype.The
condenserneedsacool,cleansupplyofwatertoproperly
cool the machine, inlet and discharge lines must be 3/8”
I.D. minimum.
The air-cooled condenser requires periodic cleaning. To
clean, refer to the following procedures.
A. Visually inspect the condenser for dirt.
B. If the condenser is dirty, place a wet towel over
the condenser.
C. Using compressed air or CO2tank, blow out the
dirt from the back of the condenser. Most of the
dirt will cling to the wet towel.
D. Analternativemethodistocleanwithacondenser
brush and vacuum.
NOTE
If the condenser is not kept clean, refrigeration ef-
ficiency will be lost.
4.3 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.
TheUnitedStatesdepartmentofagricultureandthefood
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.
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.Failureto disconnect power beforeservicing
could result in death or serious injury.
Figure 4-1 Belt Tension Adjustment

Owner’s Manual #513677 14 F144I2, SF144I2 and SF121I2 Model Machines
4.4 EXTENDED STORAGE
Refer to the following steps for storage of the machine
over any long period of shutdown time:
A. Clean all the parts that come in contact with mix
thoroughly with a 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. Placetheaugerflightsandaugersupportbushing
inaplastic bagwithamoist papertowel.Thiswill
prevent them from becoming brittle if exposed to
dry air over an extended period of time (over 30
days).
D. Forwater-cooledmachinesthatareleftinunheated
buildings,orbuildingssubjecttofreezing,thewater
must be shut off and disconnected. Disconnect
the water inlet fitting. The fitting is located at the
rearofthemachine.Runthecompressorfor2-3
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.