Vollrath Stoelting Endura 111 User manual

Model E111 & F111
SERVICE MANUAL
Manual No. 513531-2 Dec. 2005

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 machines 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 Stoelting.
Stoelting Foodservice Equipment
502 Highway 67
Kiel, WI 53042-1600
U.S.A.
Main Tel: [phone]
Fax: [phone]
Customer Service: 888.429.5920
Fax: [phone]
Email: [email protected]
© 2014 PW Stoelting, LLC
stoeltingfoodservice.com

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.
NOTE (or NOTICE)
The signal word “NOTICE” indicates information or
procedures that relate directly or indirectly to the
safety of personnel or equipment/property.

TABLE OF CONTENTS
SECTION DESCRIPTION PAGE
SECTION 1 INTRODUCTION
1.1 Description .....................................................................................1
1.2 Specifications .................................................................................1
SECTION 2 INSTALLATION INSTRUCTIONS
2.1 SafetyPrecautions .........................................................................3
2.2 Shipment and Transit .....................................................................4
2.3 FreezerInstallation .........................................................................4
2.4 Floor Stand Installation ...................................................................5
2.5 Installing Permanent Wiring............................................................5
SECTION 3 INITIAL SET-UP AND OPERATION
3.1 Operator’s Safety Precautions........................................................7
3.2 Operating Controls and Indicators ..................................................7
3.3 Sanitizing ........................................................................................8
3.4 Freeze Down and Operation...........................................................9
3.5 Mix Information...............................................................................10
3.6 Removing Mix Inlet Regulator.........................................................10
3.7 Cleaning the Freezer ......................................................................11
3.8 Disassembly of Freezer Parts.........................................................11
3.9 Cleaning the Freezer Parts.............................................................12
3.10 Sanitize Freezer & Freezer Parts....................................................12
3.11 Assembly of Freezer.......................................................................12
3.12 RoutineCleaning ............................................................................13
3.13 PreventiveMaintenance .................................................................14
3.14 Extended Storage ...........................................................................16
SECTION 4 REFRIGERATION SYSTEM
4.1 Refrigeration System ......................................................................17
4.2 Evaporators ....................................................................................18
4.3 Compressor Winding Test..............................................................18
4.4 Condensers ....................................................................................19
4.5 T.X.V. .............................................................................................20
4.6 T.X.V. Adjustment ..........................................................................20
4.7 T.X.V. Removal ..............................................................................20
4.8 T.X.V. Installation ...........................................................................21
4.9 Hopper............................................................................................22
4.10 E.P.R. Valve Adjustment ................................................................22
4.11 E.P.R. Removal ..............................................................................23
4.12 E.P.R. Valve Installation .................................................................23
4.13 Capillary Tubes...............................................................................24
4.14 Capillary Tube Removal .................................................................24
4.15 Capillary Tube Installation...............................................................24
4.16 SolenoidValve................................................................................25
4.17 Solenoid Magnetic Coil Removal ....................................................25
4.18 Solenoid Magnetic Coil Installation .................................................26

4.19 Solenoid Valve Removal.................................................................26
4.20 Solenoid Valve Installation..............................................................26
4.21 Refrigerant Charge (All Models) .....................................................26
SECTION 5 CONTROLS
5.1 Control System Type 4 ...................................................................27
5.2 Power Board...................................................................................27
5.3 Program Module .............................................................................27
5.4 Contactors ......................................................................................34
5.5 Spigot Switch..................................................................................34
5.6 Spigot Switch Removal...................................................................34
5.7 Spigot Switch Installation................................................................35
5.8 Front Door Interlock Switch ............................................................35
5.9 Front Door Interlock Removal.........................................................35
5.10 Front Door Interlock Switch Assembly ............................................36
5.11 Touch Pad Switch Module ..............................................................36
5.12 Touch Pad Switch Module Removal ...............................................36
5.13 Touch Pad Switch Module Assembly..............................................36
5.14 Sensor ............................................................................................37
5.15 Sensor Removal .............................................................................37
5.16 SensorInstallation ..........................................................................37
5.17 Preparation for Major Component Removal ...................................38
5.18 Condenser Fan Motor and Lubrication ...........................................38
5.19 Condenser Fan Motor Removal......................................................38
5.20 Condenser Fan Motor Installation...................................................39
5.21 Drive Motor.....................................................................................39
5.22 Drive Motor Removal......................................................................39
5.23 Drive Motor Installation ...................................................................40
5.24 Speed Reducer...............................................................................40
5.25 Speed Reducer Removal................................................................40
5.26 Speed Reducer Installation.............................................................41
5.27 Compressor....................................................................................41
5.28 Compressor Removal.....................................................................41
5.29 Compressor Installation..................................................................42
5.30 Final Assembly of Freezer ..............................................................43
SECTION 6 TROUBLESHOOTING
6.1 Dispensing, Servability, and Overrun..............................................46
6.2 Barrel and Hopper Mix Temperature Maintenance .........................47
6.3 Electro-Mechanical .........................................................................48
6.4 Control Displayed Error Conditions.................................................54
SECTION 7 REPLACEMENT PARTS
7.1 How To Order Parts........................................................................57

LIST OF ILLUSTRATIONS
FIGURE TITLE PAGE
1 Model Endura/Futura 111 Freezer..........................................................1
2 Specifications .........................................................................................1
3 Warning Label Locations ........................................................................3
4 Leveling the Freezer ...............................................................................4
5 Space and Ventilation Requirements......................................................4
6 Electrical Plug.........................................................................................4
7 Installing Tray and Cover........................................................................4
8 Floor Stand.............................................................................................5
9 Power Cord Connection..........................................................................5
10 Controls ..................................................................................................7
11 Mix Inlet Regulator..................................................................................9
12 Clean Control..........................................................................................9
13 SanitizingHopper ...................................................................................9
14 DrainingSolution ....................................................................................9
15 Dispensing Product ................................................................................10
16 Removing Mix Inlet Regulator.................................................................10
17 Draining Mix ...........................................................................................10
18 Auger Flight Wear and Front Auger Support Bushing Wear ...................11
19 Removing Front Door .............................................................................11
20 Front Door Disassembly .........................................................................11
21 Removing Auger Support .......................................................................11
22 Auger Shaft Removal .............................................................................12
23 Removing “O” Ring.................................................................................12
24 Cleaning Freezer Barrel..........................................................................12
25 Exploded View of Auger .........................................................................13
26 Exploded View of Front Door..................................................................13
27 Mix Inlet Regulator..................................................................................13
28 Refrigeration System ..............................................................................17
29 Compressor Terminal Cover ..................................................................18
30 Compressor Connections .......................................................................18
31 Ohmmeter and Connections...................................................................18
32 Electrical Box..........................................................................................19
33 Condenser and Filter ..............................................................................19
34 Condenser Inspection.............................................................................20

35 T.X.V. (Thermostatic Expansion Valve)..................................................20
36 Bulb Removal .........................................................................................21
37 T.X.V. Removal ......................................................................................21
38 BulbInstallation ......................................................................................22
39 Filter Drier...............................................................................................22
40 E.P.R. Schrader Access Fitting ..............................................................22
41 E.P.R. Valve Adjustment ........................................................................23
42 E.P.R. Valve and Lines...........................................................................23
43 Filter Drier...............................................................................................24
44 Capillary Tube and Drive Assembly ........................................................24
45 Filter Drier...............................................................................................24
46 Pressure Gauges ...................................................................................25
47 Power Cord ............................................................................................25
48 Solenoid Replacement............................................................................25
49 Solenoid Coil Removal ...........................................................................26
50 Power Board...........................................................................................28
51 Program Module .....................................................................................29
52 Membrane Switch Panel Display Board..................................................30
53 Spigot Switch Replacement....................................................................35
54 Interlock Switch Removal .......................................................................35
55 Interlock Switch Assembly ......................................................................36
56 Switch Module Removal .........................................................................36
57 Cover Plate Removal..............................................................................37
58 Foam Insulation Removal .......................................................................37
59 Ty-raps Removal ....................................................................................37
60 Fan Motor Connections ..........................................................................38
61 Fan Bracket Removal .............................................................................39
62 Drive Belt Removal.................................................................................39
63 Drive Motor Wire Removal .....................................................................40
64 Motor Pulley Adjustment.........................................................................40
65 Belt Tension Adjustment.........................................................................40
66 Speed Reducer Removal........................................................................41
67 Speed Reducer Adjustment....................................................................41
68 Belt Tension Adjustment.........................................................................41
69 Compressor Cover Removal ..................................................................42
70 Compressor Connections .......................................................................42
71 Compressor Oil Test Kit .........................................................................42
72 Filter Drier...............................................................................................43

1
SECTION 1
DESCRIPTION AND SPECIFICATIONS
1.1DESCRIPTION
TheStoeltingEndura/Futura111/112counterfreezersare
gravityfed.The freezers areequipped withfullyautomatic
controls to provide a uniform product. The freezers are
designed to operate with almost any type of commercial
softserve ornon-dairy mixeravailable, includingice milk,
ice cream, yogurt, and frozen dietary desserts. This
manual is designed to assist qualified service personnel
and operators in the installation, operation and mainte-
nance of the Stoelting Model Endura 111/112 and Futura
111/112gravityfreezers.
Figure 2. Specifications
Figure 1. Model Endura/Futura 111/112 Freezer
1.2SPECIFICATIONS
Model Endura/Futura
Front View Model Endura/Futura Side Views

2
MODELENDURA/FUTURA111/112
COUNTERMODEL
GRAVITYFREEZER
DIMENSIONS:
Freezer: 15" (38 cm) wide x 28.6" (72 cm) deep x 35.6" (90 cm) high
Crated: 19.5" (50 cm) wide x 33" (84 cm) deep x 40" (102 cm) high
WEIGHT:
Freezer: 230 lbs. (140 kg) Crated: 275 lbs. (125 kg)
ELECTRICAL:
Description Endura111-37G Futura111-38G
Voltage AC 1 PH 115V 1PH 208/230
Total Run Amps 12.00 10.00
Drive Motor 3/4 HP 3/4 HP
Use 20 amp HACR circuit breaker.
Automatic safeguard circuit built into electronic control-protects major
freezercomponentsunderabnormaloperatingconditions.
COOLING:
Air cooled requires minimum 3" (7.6 cm) air clearance on right and left hand side.
Noclearanceneededinthe rear.
HOPPER:
3Gallons (11.5 liters) refrigerated andinsulated.

3
SECTION 2
INSTALLATION INSTRUCTIONS
2.1SAFETYPRECAUTIONS
Do not attempt to operate the freezer until the safety
precautionsandoperatinginstructionsinthismanualare
readcompletelyandarethoroughlyunderstood.
Takenoticeofallwarninglabelsonthefreezer.Thelabels
have been put there to help maintain a safe working
environment.Thelabelshavebeendesignedtowithstand
washing and cleaning. All labels must remain legible for
the life of the freezer. Labels should be checked periodi-
callytobesuretheycanberecognizedaswarninglabels.
Ifdanger,warningorcautionlabelsareneeded,indicate
the part number, type of label, location of label, and
quantityrequired along with your addressand mail to:
STOELTING,INC.
ATTENTION: CustomerService
502 Hwy. 67
Kiel,Wisconsin 53042
Figure 3. Warning Label Locations
THERMISTOR. HEAT SINK MUST BE
USED WHEN BRAZING ON EVAPORATOR
UNDER THIS COVER. TEMPERATURE
MUST NOT EXCEED 220°F NEAR
HEAT SENSITIVE THERMISTOR LOCATED
OUTLET. CHECK RESISTANCE BEFORE
SEE SERVICE MANUAL.
REMOVAL OF THERMISTOR.

4
2.2SHIPMENTANDTRANSIT
Thefreezerhasbeenassembled,operatedandinspected
at the factory. Upon arrival at the final destination, the
completefreezermustbecheckedforanydamagewhich
mayhaveoccurredduringtransit.
With the method of packaging used, the freezer should
arriveinexcellentcondition.THECARRIERISRESPON-
SIBLE FOR ALL DAMAGE IN TRANSIT, WHETHER
VISIBLEORCONCEALED.Donotpaythefreightbilluntil
thefreezerhasbeencheckedfordamage.Havethecarrier
note any visible damage on the freight bill. If concealed
damageand/orshortageisfoundlater,advisethecarrier
within10daysandrequestinspection.Thecustomermust
place claim for damages and/or shortages in shipment
withthecarrier.Stoelting,Inc.cannotmakeanyclaims
against the carrier.
2.3FREEZERINSTALLATION
Installationofthefreezerinvolvesmovingthefreezerclose
to its permanent location, removing all crating, setting in
place,assembling parts, and cleaning.
A. Uncratethefreezer.
B. Accuratelevelingisnecessaryforcorrectdrainageof
freezerbarrelandtoinsurecorrectoverrun.Placea
spirit level on top of the freezer at each corner to
checkfor level condition. If adjustment is necessary,
levelthefreezerbyturningthebottompartofeachleg
inor out. Thenseparate freezer base gasket and
installwithseamtothebackandangletothetop.(Fig.
4).
Figure 7. Installing Tray and Cover
Figure 4 - Leveling
C. Thefreezerisequippedwithanaircooledcondenser
andrequirescorrectventilation.Theright side of the
freezer is the air intake and left side discharge. Both
sides must have 3" clearance the top requires 10" of
clearance.(Fig.5).
CAUTION
FAILURE TOPROVIDEADEQUATE VENTILATION
WILL VOID WARRANTY!
D. PlacetheOFF-ONswitchintheOFFposition.(Fig.10).
Figure 5. Space and Ventilation Requirements
E. Connectthepowercord.Theplugisdesignedfor208
or230volt/20ampduty.Checkthenameplateonyour
freezerforpropersupply.Theunitmustbeconnected
toaproperlygroundedreceptacle.Theelectricalcord
furnishedaspartofthe freezer hasathreeprong
groundingtypeplug(Fig.6).Theuseofanextension
cord is not recommended, if necessary use one with
asize12gaugeorheavierwithgroundwire.Donotuse
anadaptertogetaroundgroundingrequirement.
CAUTION
DONOTALTERORDEFORMPLUGINANYWAY!
F. Installthedriptray,draintray,hoppercoverandother
miscellaneous parts on the freezer. (Fig. 7).
Figure 6. Electrical Plug
208/230V
20 Amp
115V
20Amp

5
Figure 8 - Floor Stand
2.5 INSTALLING PERMANENT WIRING
Ifpermanentwiringisrequiredbylocalcodes,thefollow-
ing procedure must be performed.
WARNING
DISCONNECT FREEZER FROM THE SOURCE
OF ELECTRICAL SUPPLY BEFORE SERVICING.
A. Remove the back panel.
B. Disconnect the wires from the terminal
block. Disconnect the green ground wire from the
grounding stud. (Fig. 9).
Figure 9. Power Cord Connection
C. Remove the power cord.
D. Install permanent wiring according to local code.
E. Replace the back panel.
2.4 FLOOR STAND INSTALLATION
ToinstalltheEorF111/112ontothefloorstand,followthe
stepsoutlinedbelow:
A. Uncrate the floor stand and place in an upright posi-
tion. NOTE
Detailed instructions are included with each floor
stand.
B. Placeaspiritlevel across thetopofthe stand to check
for level condition, side to side and front to back. If
adjustment is necessary, level the stand by turning
the bottom part of each leg in or out, then tighten the
lock nut. WARNING
DO NOT INSTALL CASTERS ON THIS FLOOR
STAND. THE STAND IS UNSTABLE WITH CAST-
ERS AND COULD TIP CAUSING SERIOUS IN-
JURY.
C. Place supportsunder freezer, thenremove the 4 legs
and replace with the rubber stud/plate mounts pro-
vided. Mounts must be fully tightened to the freezer.
D. Place the freezerbase gasket on the floor stand with
the connected seam to the back and angle side up.
Center the gasket side to side and 1-3/4 inches from
the rear of the floor stand.
E. Place the freezer on the floor stand with the front of
the freezer to the door end. All 4 stud/plate mounts
must engage the holes in the floor stand. Secure the
mountswith the nutsand washers provided. (Fig. 8).

6

7
SECTION 3
INITIAL SETUP AND OPERATION
3.1OPERATOR'SSAFETYPRECAUTIONS
SAFEOPERATION ISNOACCIDENT; Observethese
rules:
A. Know the freezer. Read and understand the
OperatingInstructions.
B. Notice all warning labels on the freezer.
C. Wear proper clothing. Avoid loose fitting gar-
ments,and remove watches, rings or jewelry which
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 electrical cord for maintenance.
Neverattempt to repair or perform maintenance on
the freezer until the main electrical power has been
disconnected.
G. Do not operate under unsafe operating condi-
tions. Neveroperate thefreezer ifunusual orexces-
sivenoise or vibration occurs.
3.2OPERATINGCONTROLSANDINDICATORS
Beforeoperating the freezer,it is requiredthat the
operatorknow the function of each operating control.
Referto Figure 10for the locationof the operating
controlson thefreezer.For the information regarding
flashingindicator lights, refer to the troubleshooting
section.
WARNING
THE OFF-ON SWITCH MUST BE PLACED IN THE OFF
POSITION WHEN DISASSEMBLING FOR CLEANING
OR SERVICING. THE FREEZER MUST BE DISCON-
NECTED FROM ELECTRICAL SUPPLY BEFORE RE-
MOVINGANYACCESS PANEL.
Figure 10. Controls
High Pressure Cutout
Switch Located Back
of Freezer
(Some Models)
ÊÊ
ÊÊ
Ê
OFF-ON
POWERSWITCH ÊÊ
ÊÊ
Ê
SPIGOT SWITCH
HOLDREADY
SWITCH
PUSHTOFREEZE
CLEAN
MIX LOW
ÅÅ
ÅÅ
Å
ÅÅ
ÅÅ
Å
ÅÅ
ÅÅ
Å
ÈÈ
ÈÈ
È
ÇÇ
ÇÇ
ÇCONSISTENCY/TEMPERATURE
ADJUSTMENT

8
A. SPIGOT SWITCH
The SPIGOT switch will automatically actuate the
augerdriveandrefrigerationsystemswhenthespigot
is opened to dispense product. When the spigot is
closed,thedrivemotorandcompressorwill remain
"on"untiltheproductinthebarrelreachestheproper
consistency,or temperature.
B. OFF-ONSWITCH
The OFF-ON switch is a two position toggle switch
usedto supply power to the control circuit.When the
switch is in the OFF position, nothing will run. When
the switch is in the ON position the freezer will be in
the idle mode until a switch is activated.
C. PUSHTOFREEZESWITCH
ThePUSHTOFREEZEswitchisa"snap"switchused
tostartthe freezing cycle.During initial freezedown,
theOFF-ONswitchisplacedintheONposition.Then
the PUSH TO FREEZE switch is pressed until the
drivemotorandcompressorcome"ON".
NOTE
After the gearmotor starts, there is a 3 second de-
lay before the compressor starts.
Duringthenormaloperation,theredPUSHTOFREEZE
switch light will illuminate after the freezer has been
idlefor thepreset cycles.Before drawingproduct,
pressthePUSHTOFREEZEswitchifitisilluminated.
Waituntilthegreenlightisilluminatedbeforedispens-
ing.
NOTE
If the freezer shuts off and the PUSH TO FREEZE
light flashes, you have an error condition. Turn the
OFF-ON swtich to the OFF position, correct the
problemandturnthe freezer back on.(SeeTrouble-
shooting.)
D. GREENLIGHT
Thegreenlightisusedtoindicatethattheproducthas
reachedtheproperconsistencyortemperatureandis
readytobe dispensed.
NOTE
If the PUSH TO FREEZE red light is illuminated,
push the PUSH TO FREEZE switch and wait until
thegreen light illuminates before dispensing.
E. CLEANSWITCH
The CLEAN switch is a "snap" switch. When the
switchispushedtherefrigerationsystemwillbeOFF
andtheaugerwillrotateforcleaning.Whentheswitch
is pushed again, the auger will stop and the CLEAN
light will flash indicating the freezer is in the CLEAN
mode. To exit the CLEAN mode turn the OFF-ON
switch to the OFF position. If the freezer is left in
CLEAN for more than 30 minutes or is pushed three
timesintenseconds,itwillgoinerror.Toresetplace
the CLEAN-OFF-ON switch in the ON position and
allowtheerrorlighttoflashaminimumof10minutes.
Then turn to off, wait 5 seconds and turn on.
F. DRIVEMOTOROVERLOAD
TheinternalDRIVEMOTOROVERLOADwilltripifthe
drivemotorisoverloaded.Itwillresetafterapproxi-
mately10-12minutes. Ifthedrivemotorcontinuesto
trip,refertoTroubleshooting(Sec.4).
G. RED MIX LOW LENS
TheredMIXLOWlightisdesignedtoalerttheoperator
to a low mix condition. The lens will illuminate with
approximatelyonegallonofmixinthehopper.When
the MIX LOW lens is lit, refill hopper immediately.
NOTE
Failure to refill hopper immediately may result in
operationalproblems.
H. HOLDREADYSWITCH
The HOLD READY switch is a push button switch.
Whenpushedinandheldfor5seconds,theholdready
modewillbeactivated.Theproductwillremainready
toserveandthefreezerwillnotgotoidle.Toreturnto
normaloperationpushand hold for5seconds.
3.3 SANITIZING
Sanitizing must be done after the freezer is cleaned and
justbeforethehopperisfilledwithmix.Sanitizingthenight
beforeisnoteffective.However,youshouldalwaysclean
the freezer and parts after using it.
WARNING
THE UNITED STATES DEPARTMENT OF AGRI-
CULTUREAND THE FOODAND DRUGADMINIS-
TRATION REQUIRE THATALL CLEANINGAND
SANITIZING SOLUTIONS USED WITH FOOD
PROCESSING EQUIPMENT BE CERTIFIED FOR
THIS USE.
Whensanitizingthefreezer,refertolocalsanitaryregula-
tions for applicable codes and recommended sanitizing
products and procedures. The frequency of sanitizing
must comply with local health regulations. Mix sanitizer
accordingtomanufacturer'sinstructionstoprovidea100
parts per million strength solution. Mix sanitizer in quan-
tities of no less than 2 gallons (7.5 liters) of 120°F water.
Allow sanitizer to contact the surfaces to be sanitized for
5minutes.Anysanitizermustbeusedonlyinaccordance
withthemanufacturer'sinstructions.
NOTE
Stoelting, Inc. has found that STERA-SHEEN
GREENLABEL SANITIZER ANDCLEANER does
aneffectivejob of properlysanitizing and cleaninga
soft serve freezer. We therefore include a sample
with each new freezer. Other products may be as
effective.Forfurtherinformationrefertocleaningand
sanitizinginformation Section 3.13.
CAUTION
PROLONGED CONTACT OF SANITIZER WITH
FREEZER MAY CAUSE CORROSION OF STAIN-
LESS STEEL PARTS.

9
In general, sanitizing may be conducted as follows:
A. Push the mix inlet regulator into hopper with air
inlet(long)tubetowardthefront ofthefreezer
(Fig.11).
E. Afterfiveminutes,placeabucketunderthespigotand
openspigottodrainsanitizingsolution.Whensolution
hasdrained,presstheCLEANsnapswitchtostopthe
auger.Allowthefreezerbarreltodraincompletely
(Fig.14).
Figure 11. Mix Inlet Regulator
Figure 13. Sanitizing Hopper
D. Cleansidesof hopper, mix inlet regulatorandunder
sideofhoppercoverusingasanitizedsoftbristlebrush
dipped in the sanitizing solution. (Fig. 13).
Figure 12. Clean Control
B. Prepare 2 gallons (7.5 liters) of sanitizing solution
followingmanufacturer'sinstructions.Pourintohop-
per with mix inlet regulator in place.
C. Place the OFF-ON toggle switch in the ON position
while pressing the CLEAN switch. Check for leaks.
(Fig.12.) 3.4 FREEZEDOWNANDOPERATION
This section covers the recommended operating proce-
durestobefollowedforthesafeoperationofthefreezer.
A. Sanitize just prior to use.
B. Place the OFF-ON switch in the OFF position.
C. With spigot open, pour approximately 1 gallon (3.8
liters)ofmixintothehopper.Allowthemixtoflushout
about8ounces(0.23liters)ofsanitizingsolutionand
liquid mix. Close the spigot.
D. Fillhopperwithapproximately3gallons(11.4liters)of
pre-chilled(40°For4°C)mix.
CAUTION
DO NOT OVERFILL THE HOPPER. MIX LEVEL
MUST NOT BE HIGHER THAN THE AIR INLET
TUBE ON THE MIX INLET REGULATOR.
E. Thefreezerbarrelwillautomaticallyfilluntilitisabout
1/2full.Iffreezerbarreldoesnotfill,checkforobstruc-
tioninthemixinletregulator.Iffreezerbarrelfillsover
1/2full,indicatedbylowoverrun,checkforleaksatthe
mix inlet regulator "O" Ring or check if the mix inlet
regulatorwasinstalled correctly orthatthe freezer is
level.
F. Place the OFF-ON switch in the ON position, then
pressthePUSHTOFREEZEswitchuntilthefreezer
starts.
NOTE
After the gearmotor starts, there is a 3 second de-
lay before the compessor starts.
Figure 14. Draining Solution

10
G. After about 6 to 10 minutes the freezer will shut OFF
andthegreenlenswillilluminate.Theproductisready
toserve. Freeze down time maybe longer for some
frozendietdessertmixes.Highambienttemperatures
may extend freeze down time.
H. Fornormaldispensing,movethespigothandle fully
open60°(Fig.15).
Mix does not improve with age. Old mix, or mix that has
been stored at too high temperature, can result in a
finished product that is less than satisfactory from the
appearanceandtastestandpoint.Toretardbacteriagrowth
indairybasedmixes,thebeststoragetemperaturerange
is between 36° to 40°F (2.2° to 4.4°C).
Some products tend to foam more than others. If excess
foam should occur, skim off with a sanitized utensil and
discard. Periodically, stir the mix in the hopper with a
sanitized utensil.
3.6 REMOVINGMIXFROMFREEZER
Toremovethemixfromthefreezer,refertothefollowing
steps:
A. Remove the mix inlet regulatorfromthehopperby
pulling straight up (Fig. 16).
B. Place the OFF-ON rocker switch in the ON position
andpushtheCLEANswitchtorotatetheauger.Allow
the mix to agitate in freezer barrel until the mix has
become a liquid, about 5 minutes.
C. Draintheliquidmixbyopeningthespigot.Abucketor
containershould be placedunder thespigot to catch
the liquid mix. (Fig. 17).
D. Place the OFF-ON switch in the OFF position.
Figure 17. Draining Mix
CAUTION
REFRIGERATION IS AUTOMATICALLY ACTI-
VATED WHEN THE SPIGOT IS OPENED. CLOSE
THE SPIGOT COMPLETELY AFTER DISPENS-
ING.
I. The freezer is designed to dispense the product at a
reasonabledrawrate.Ifthefreezerisoverdrawn,the
result is a soft product or a product that will not
dispenseat all. If this should occur, allow the freezer
torunforapproximately30secondsbeforedispensing
additionalproduct.Afterawhiletheoperatorwillsense
orfeelwhenthefreezerisbeginningtofallbehind,and
willslowdownontherateofdrawsoasnottoexceed
the capacity.
J. DonotoperatethefreezerwhentheMIXLOWlightis
onorwithlessthan1-3/4inches(4.4cm)ofmixinthe
hopper.Refillthehopperimmediately.
3.5 MIXINFORMATION
Mix can vary considerably from one manufacturer to
another.Differencesintheamountofbutter-fatcontentand
quantity and quality of other ingredients have a direct
bearingonthefinishedfrozenproduct.Achangeinfreezer
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. Soft serve mixes should
provide a satisfactory product in the 18° to 20°F (-7° to
-6°C)range, shake mixes 24° to 28°F (-4° to -2°C).
When checking the temperature, stir the thermometer in
thefrozenproducttoreadthetruetemperature.
Figure 16. Removing Mix Inlet Regulator
Figure 15. Dispensing Product

11
3.7 CLEANINGTHEFREEZER
NOTE
The frequency of cleaning the freezer and freezer
parts must comply with local health regulations.
After the mix has been removed from the freezer, the
freezermustbecleaned.Tocleanthefreezer,refertothe
followingsteps:
A. Closethespigotandfillthehopperwith2gallons(7.5
liters) of cold tap water.
B. Place the OFF-ON switch in the ON position while
pushing the CLEAN switch to rotate the auger.
C. Allowthewatertoagitateforapproximately5minutes.
NOTE
Iffreezer is left in CLEANfor morethan 30 minutes,
it will go to error.
D. Openthespigottodrainthewater.Remembertoplace
a bucket or container under the spigot to catch the
water.Whenthewaterhasdrained,turntheOFF-ON
switchtotheOFFposition.Allowthefreezerbarrelto
draincompletely.
E. Repeat Steps A through D using a mild detergent
solution.
3.8 DISASSEMBLYOFFREEZERPARTS
CAUTION
PLACE THE OFF-ON TOGGLE SWITCH IN THE
OFF POSITION BEFORE DISASSEMBLING FOR
CLEANINGOR SERVICING.
Inspection for worn or broken parts should be made at
every disassembly of the freezer for cleaning or other
purposes.Allworn or brokenpartsshould be replacedto
ensuresafety to both the operator and the customer and
tomaintaingoodfreezerperformanceandaqualityprod-
uct.Twonormalwearareasaretheaugerflightsandfront
augersupport(Fig.18).Frequencyofcleaningmustcom-
ply with the local health regulations.
Figure 18. Auger Flight Wear and Front Auger
Support Bushing Wear
Todisassemble the freezer, refer tothe followingsteps:
A. Removehoppercoveranddraintray(Fig.19).
B. Remove the mix inlet regulatorfromthehopperby
pullingstraightup.
C. Removethefrontdoorbyturningoffthecircularknobs
and then pulling the front door off the studs.
Figure 20. Front Door Disassembly
E. Removethefrontaugersupportandbushing(Fig.21).
Figure 21. Removing Auger Support
Figure 19. Removing Front Door
D. Removetherosetteandadapter,thenremovethe
spigotbodyfromthefrontdoorbypullingtheclevispin
outofthespigothandle.Pushthespigotbodythrough
thebottomofthefront door (Fig.20).Removespigot
bodyandspring.
HopperCover
ËË
ËË
Ë
Drain Tray ÆÆ
ÆÆ
Æ

12
3.9 CLEANINGTHEFREEZERPARTS
Placeall loose parts in a pan or container and take to the
washsinkforcleaning.Tocleanfreezerpartsrefertothe
followingsteps:
A. Placeallpartsinwarmmilddetergentwaterandclean
withbrushes provided.Rinse allparts withclean hot
water.
CAUTION
DO NOT DAMAGE PARTS BY DROPPING OR
ROUGHHANDLING.
B. Washthehopperandfreezerbarrelwithwarmdeter-
gentwaterandbrushesprovided.(Fig.24).
C. Clean the drip tray and insert with a soap solution.
Rinse with clean hot water.
3.10SANITIZEFREEZERANDFREEZERPARTS
A. Use a sanitizing solution of 100 parts per million to
sanitize the parts before assembly.
B. Placeallpartsinthesanitizingsolution,thenremove
and let air dry.
C. Using this sanitizing solution and the large barrel
brushprovided,sanitizetherearofthebarrelby
dipping the brush in the sanitizing solution and
brushing.
3.11ASSEMBLYOFFREEZER
Toassemblethefreezerparts,refertothefollowingsteps:
NOTE
Petro-Gel sanitary lubricant or equivalent must be
used when lubrication of parts is specified.
NOTE
The United States Department of Agriculture and
theFoodand DrugAdministration require thatlubri-
cantsused on foodprocessing equipment be certi-
fied for this use. Use lubricants only in accordance
withthe manufacturer's instructions.
Figure 24. Cleaning Freezer Barrel
F. Removetheaugerassemblyfromthefreezer(Fig.22).
Pullthe auger out of the freezer barrel slowly. As the
augerisbeingpulledout,carefullyremoveeachofthe
plastic flights with springs.
Figure 22. Auger Shaft Removal
G. Keep the rear of the auger shaft tipped up once it is
clearofthefreezertoavoiddroppingrearseal.
H. Removetherearseal.
I. Wipesocketlubricantfromthedriveend(rear)ofthe
auger with a cloth or paper towel.
J. Removeall"O"Ringsfrompartsbyfirstwipingoffthe
lubricantusingacleanpapertowel.Thensqueezethe
"O"Ringupwardwithadrycloth(Fig.23).Whenaloop
is formed, roll out of the "O" Ring groove.
WARNING
DONOT USE ANY TYPE OF SHARP OBJECT TO
REMOVE THE "O" RINGS.
Figure 23. Removing "O" Ring