Stoelting Freezer 4231G User Manual

Model 4231G/H

OWNER'S MANUAL

Manual No. 513534 Apr. 2003, Rev. 3

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STOELTING OWNER'S MANUAL

FOR MODEL 4231G

STOELTING FLOOR GRAVITY FREEZER

SOFT-SERVE

This manual provides basic information about the freezer. 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

atanytimewithoutnoticetothefreezerwithoutincurringanyobligationtomodifyorprovidenewparts

for freezers built prior to date of change.

DONOTATTEMPTtooperatethefreezeruntilinstructionsandsafetyprecautionsinthismanualare

read completely and are thoroughly understood. The freezer should be operated only by qualified

personnel. If problems develop or questions arise in connection with installation, operation or

servicingofthefreezer, contactthecompanyatthefollowinglocation:

Stoelting, LLC

502 Hwy. 67

Kiel, WI 53042-1600

Tele: 920-894-2293

Fax: 920-894-7029

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TABLE OF CONTENTS

Section

Description

Page

1.1

1.2

INTRODUCTION .................................................................................................1

Description ...........................................................................................................1

Specifications.......................................................................................................2

OPERATING INSTRUCTIONS............................................................................3

Safety Precautions ...............................................................................................3

Shipment and Transit ...........................................................................................4

Freezer Installation ..............................................................................................4

Electrical Connections .........................................................................................5

2.1

2.2

2.3

2.4

INTIAL SET-UP AND OPERATION ....................................................................7

Operator’s Safety Precautions .............................................................................7

Operating Controls and Indicators .......................................................................7

Sanitizing .............................................................................................................9

Freeze Down and Operation ................................................................................10

Mix Information ....................................................................................................11

Removing Mix from Freezer.................................................................................11

Cleaning the Freezer ...........................................................................................12

Disassembly of Freezer Parts ..............................................................................12

Cleaning the Freezer Parts ..................................................................................14

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

3.10 Sanitize Freezer and Freezer Parts .....................................................................14

3.11 Assembly of Freezer ............................................................................................14

3.12 Routine Cleaning .................................................................................................16

MAINTENANCE INSTRUCTIONS.......................................................................17

Preventative Maintenance ...................................................................................17

Freeze-up ............................................................................................................18

Condenser Service ..............................................................................................18

Extended Storage ................................................................................................18

Troubleshooting ...................................................................................................19

4.1

4.2

4.3

4.4

4.5

REPLACEMENT PARTS ....................................................................................21

How to Order Parts ..............................................................................................21

Push to Freeze Light/Switch Lamp Replacment...................................................21

Clean-Off-On Rocker Switch Replacement ..........................................................21

Replacement Parts & Reference Drawings ..........................................................22

5.1

5.2

5.3

5.4

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LIST OF ILLUSTRATIONS

Figure

Description

Page

Model 4231G Freezer ....................................................................................................... 1

Specifications.................................................................................................................... 1

Warning and Label Locations ............................................................................................ 3

Space and Ventilation Requirements ................................................................................ 4

Leveling Freezer ............................................................................................................... 5

Caster Adjustment ............................................................................................................ 5

Connecting Permanent Wiring .......................................................................................... 5

Danger Decal .................................................................................................................... 5

Controls ............................................................................................................................ 7

Mix Inlet Regulator ............................................................................................................ 9

Sanitizing Procedure ......................................................................................................... 9

Clean Control .................................................................................................................... 9

Sanitizing Hopper.............................................................................................................. 9

Spigot Opened and Solution Draining ............................................................................... 10

Pouring the Mix ................................................................................................................. 10

Dispensing Product ........................................................................................................... 10

Skimming the Foam .......................................................................................................... 11

Removing Mix Inlet Regulator ........................................................................................... 11

Draining Mix ...................................................................................................................... 12

Auger Flight Wear & Front Auger Support Wear ............................................................... 12

Removing Front Door........................................................................................................ 13

Removing Spigot............................................................................................................... 13

Removing Auger Supports ................................................................................................ 13

Auger Shafts ..................................................................................................................... 13

Removing “O” Ring ........................................................................................................... 13

Cleaning Freezer Barrel .................................................................................................... 14

Exploded View of Auger .................................................................................................... 15

Exploded View of Front Door ............................................................................................ 15

Installing Mix Inlet Regulators ........................................................................................... 16

Drain Trays ....................................................................................................................... 16

Skimming Hopper ............................................................................................................. 17

Sanitizing Mix Inlet Regulators (Carburetor)...................................................................... 17

Push to Freezer Light/Switch Assembly ............................................................................ 21

Spigot, Front Door and Auger Assembly ........................................................................... 22

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SECTION 1

INTRODUCTION

1.1

DESCRIPTION

TheStoelting®4231Gfreezerisgravityfed.Thefreezer

is equipped with fully automatic controls to provide a

uniform product. The freezer is 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 insulation, operation

and maintenance of the Stoelting Model 4231 gravity

freezer.

Information Packet Location

Model 4231G . . . . . . . RIGHT SIDE

Figure 1. Model 4231G Freezer

Figure 2. Specifications

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1.2

SPECIFICATIONS

MODEL 4231G

FLOOR MODEL

GRAVITY FREEZER

DIMENSIONS

Freezer: 25.90” (65.81 cm) wide x 30.20” (76.7 cm)

deep x 60.80” (154.4 cm) high

Crated: 38.00” (96.5 cm) wide x 64.00” (162.5 cm) deep

x 70.00” (178.0 cm) high

WEIGHT

Freezer: 640 lbs. (291 kg)

Crated: 815 lbs. (370 kg)

ELECTRICAL

Refer to the nameplate located on the rear of the

Freezer.

COOLING

Air-cooledrequires3”(7.6cm)clearanceforalllouvered

panels. Water-cooled requires ½” pipe or 5/8” inside

diameter copper water in be installed for adequate

water supply.

HOPPER CAPACITY

Two hoppers, 5.6 gallons (21 liters) each, refrigerated

and insulated.

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SECTION 2

INSTALLATION INSTRUCTIONS

Labels should be checked periodically to be sure they

can be recognized as warning labels.

2.1

SAFETY PRECAUTIONS

Do not attempt to operate the freezer until the safety

precautions and operating instructions in this manual

are read completely and are thoroughly understood.

Ifdanger,warningorcautionlabelsareneeded,indicate

the part number, type of label, location of label, and

quantity required along with your address and mail to:

Take notice of all warning labels on the freezer (Fig. 3).

The labels 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 freezer.

STOELTING, LLC

ATTENTION: Customer Service

502 HWY 67

Kiel, Wisconsin 53042-1600

Figure 3. Warning Label Locations

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NOTE

2.2

SHIPMENT AND TRANSIT

For Air Cooled Unit Only.

The freezer has been assembled, operated and

inspected at the factory. Upon arrival at the final

destination,thefreezermustbecheckedforanydamage

that may have occurred during transit.

A rear block-off panel has been provided to prevent

recirculation of hot air beneath the freezer. The rear

block-off panel maximizes the efficiency of the freezer.

See the illustration for the installation instructions.

With the method of packaging used, the freezer should

arrive in excellent condition. THE CARRIER IS

RESPONSIBLE FOR ALL DAMAGE IN TRANSIT,

WHETHER VISIBLE OR CONCEALED. Do not pay the

freightbilluntilthefreezerhasbeencheckedfordamage.

Have the carrier note any visible damage on the freight

bill. If concealed damage and/or shortage are found

later, advise the carrier within 10 days and request

inspection.Thecustomermustplaceclaimfordamages

and/orshortagesinshipmentwiththecarrier.Stoelting,

Inc. cannot make any claims against the carrier.

1. Remove both back panel mounting screws below

the bottom most louver.

2. Attach rear block-off panel to the back panel using

the same screws as shown.

Bottom Most Louver Of Back Panel

Back Panel Mounting Screw

2.3

FREEZER INSTALLATION

Rear Blockoff Panel

CAUTION

FAILURE TO INSTALL THE FREEZER WITHIN

RECOMMENDED LIMITS WILL RESULT IN

POOR PERFORMANCE OF THE SYSTEM,

PREMATURE COMPONENT FAILURE AND

CANCELLATION OF WARRANTY.

A water-cooled freezer requires an adequate water

supply, install 3/8 inch pipe or ½ inch inside diameter

copper water line to each side of the freezer. Connect

water outlet to a drain using a ½ inch inside diameter

line. Automatic washer hoses work well for final

connections. All water connections must comply with

local codes.

Installation of the freezer involves moving the unit close

to its permanent location, removing all protective

packaging, setting in place and cleaning.

CAUTION

FLUSH ALL WATER LINES BEFORE

INSTALLATION. IN NEW STORES WITH

SEDIMENT WATER, ADD SUITABLE FILTER

OR STRAINER TO WATER INLET.

CAUTION

REMOVE LOWER FRONT PANEL BEFORE

REMOVING FREEZER FROM SKID.

CAUTION

A. The freezer requires adequate ventilation.Aminimum

of 3” (7.6 cm) of vent space is required for free flow

of cooling air at the front and back (Fig. 4).

FAILURE TO PROVIDE ADEQUATE

VENTILATION WILLVOID WARRANTY.

B. The unit is shipped without casters installed. To install

the casters, lift and support the unit while screwing

the four casters into the bottom of the frame at each

corner.

Figure 4. Space and Ventilation Requirements

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C. For location of proper electrical connections, refer

to Figure 7.

Figure 5. Leveling Freezer

Figure 7. Connecting Permanent Wiring

NOTE

C. Accurate leveling is necessary for correct drainage

of freezer barrel to insure correct over-run and flow.

Place a spirit level on top of the freezer at each

corner to check for level condition (Fig. 5). If

adjustment is necessary, level the freezer by turning

the casters in or out (Fig. 6).

When supply voltage is less than 218V, reconnect

transformer. Switch orange and red wires from

transformer at the terminal strip and cap blue wire.

D. Please read decal located on lower electrical box

cover (Fig. 8)

Figure 6. Caster Adjustment

2.4

ELECTRICAL CONNECTIONS

WARNING

BEFORE INSTALLATION OF ANY CABLE IN

THE FREEZER, DISCONNECT THE FREEZER

FROM ITS ELECTRICAL SUPPLY SOURCE.

Figure 8. Danger Decal

The model 4231 freezer is two individual freezers in a

common enclosure. EACH SIDE MUST BE

CONNECTED INDIVIDUALLY. EACH SIDE MUST

HAVEITSOWNELECTRICALSUPPLY. Whenmaking

the electrical supply connections, YOU MUST

MAINTAIN STRAIGHT POLARITY FROM SIDE TO

SIDE.

CAUTION

ROUTE ELECTRICAL CABLE SO THAT IT

CANNOT BE ACCIDENTALLY DAMAGED BY

PINCHING, CRUSHING, ETC.

A. Connect freezer to a properly grounded 208/230 volt

(AC), source of electricity.

E. Check the auger shaft rotation by placing the MAIN

DRIVE switch in the CLEAN position. Auger shaft

rotation is clockwise as viewed through the clear

plastic front door. If the rotation is not clockwise, turn

the main electrical power OFF. Then reverse L1 and

L3 electrical power lines to the junction box (three

phase only). Re-check auger shaft rotation.

B. To access the electrical boxes, remove the two

Phillips head screws on the left and right side panels.

Then pull the panel down and out.

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SECTION 3

INITIAL SET-UP AND OPERATION

F. Disconnect electrical cord for maintenance.

3.1

OPERATOR’S SAFETY

PRECAUTIONS

Never attempt to repair or perform maintenance on

the freezer until the main electrical power has been

disconnected.

SAFE OPERATION IS NO ACCIDENT; Observe these

rules:

G. Do not operate under unsafe operating

conditions. Never operate the freezer if unusual or

excessive noise or vibration occurs.

A. Know the freezer. Read and understand the

Operating Instructions.

3.2

OPERATING CONTROLS AND

INDICATORS

B. Notice all warning labels on the freezer.

C. Wear proper clothing. Avoid loose fitting garments,

and remove watches, rings or jewelry, which

could cause a serious accident.

Before operating the freezer, it is requires the operator

know the function of each operating control. Refer to

Figure 9 for the location of the operating controls on the

freezer.

WARNING

D. Maintain a clean work area. Avoid accidents by

cleaning up the area and keeping it clean.

THE OFF-SERVE SWITCH MUST BE PLACED

THE

OFF

POSITION

WHEN

DISASSEMBLING FOR CLEANING OR

SERVICING. THE FREEZER MUST BE

DISCONNECTED FROM ELECTRICAL SUPPLY

BEFORE REMOVING ANY ACCESS PANEL.

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.

Spigot Switch (behind panel)

Activated by Spigot Handles

Dispense Rate Adjusters

Clean-Off-Serve Rocker Switch

Red Light (Push to Freeze)

Green Light (Ready to Serve)

Red Light (Push to Freeze)

Green Light (Ready to Serve)

Low Mix Light

Front Door Interlock Switch

Actuator(locatedbetweenbar-

rels behind stainless steel

panel)

High Pressure Reset But-

ton(underlowerfrontpanel)

Water Cooled Only

Figure 9. Controls

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A. SPIGOT SWITCH

NOTE

If the freezer shuts off and the PUSH TO FREEZE

light flashes, you have an error condition. Turn

the CLEAN-OFF-SERVE switch to the OFF

position, correct the problem and turn the freezer

back on.

When the spigot handle is opened the SPIGOT

switch will start the auger drive motor and

refrigeration systems. When the spigot handle is

closed, the auger drive motor and compressor will

remain on until the product in the barrel reaches the

proper consistency.

GREEN LIGHT

B. CLEAN-OFF-SERVE SWITCH

The green lens is used to indicate that the product has

reached the proper consistency and is ready to be

dispensed.

The CLEAN-OFF-SERVE switch is a three-position

rocker switch used to control the operation of the

refrigeration system and auger. When the switch is

placed in the CLEAN position, the refrigeration

system will be off and the auger will rotate for

cleaning.

NOTE

If the PUSH TO FREEZE lens is illuminated, push

the PUSH TO FREEZE switch and wait until the

green lens illuminates before dispensing.

When the switch is placed in the OFF position, the

refrigeration system and auger will not operate.

MIX LOW LIGHT

The MIX LOW light is used to indicate when the hopper

When the switch is placed in the SERVE position, islowonmix. Whenthelightisilluminatedfillthehopper

the refrigeration system and auger will operate with mix.

automatically. The switch should be placed in the

ON position for normal operation.

CAUTION

FAILURE TO REFILL HOPPER IMMEDIATELY

MAY RESULT IN OPERATIONAL PROBLEMS.

C. PUSH TO FREEZE SWITCH

The illuminating PUSH TO FREEZE switch is used

to start the freezing cycle. During the initial freeze

down, the CLEAN-OFF-SERVE rocker switch is

placed in the SERVE position. Then the PUSH TO

FREEZE switch is pressed until the drive motor and

compressor comes “ON.”

D. DISPENSE RATE ADJUSTER

The dispense rate adjuster limits the opening of the

spigot.

To adjust product dispense rate, turn the adjusting

knob clockwise for slower flow and counterclockwise

for faster flow.

NOTE

After the gearmotor starts, there is a 3-second

delay before the compressor starts.

E. DOOR INTERLOCK SWITCH

Duringthenormaloperation,theredPUSHTOFREEZE

switchwillilluminateafterthefreezerhasbeeninidlefor

the pre-set time. Before drawing product, press the red

PUSH TO FREEZE switch if it is illuminated. Wait until

the green lens is illuminated before dispensing.

When the door is securely fastened the freezer will

operate normally. When the door is removed, the

drive and compressor will not run.

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B. Prepare 2 gallons (7.5 liters) of sanitizing solution

following manufacturer’s instructions. Pour into

hopper with mix inlet regulator in place (Fig. 11).

3.3

SANITIZING

Sanitizing must be done after the freezer is clean and

just before the hopper is filled with mix. Sanitizing the

night before is not effective. However, you should

always clean the freezer and parts after using it.

WARNING

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.

Figure 11. Sanitizing Procedure

When sanitizing the freezer, refer to local sanitary

regulations for applicable codes and recommended

sanitizing products and procedures. The frequency of

sanitizing must comply with local health regulations.

Mix sanitizer according to manufacturer’s instructions

to provide a 100 parts per million strength solution. Mix

sanitizer in quantities of no less than 2 gallons (7.5

liters) of 120°F water. Allow sanitizer to contact the

surfaces to be sanitized for 5 minutes. Any sanitizer

mustbeusedonlyinaccordancewiththemanufacturer’s

instructions.

C. Place the CLEAN-OFF-SERVE rocker switch in the

CLEAN position. Check for leaks around the front

door seal (Fig. 12).

CAUTION

PROLONGED CONTACT OF SANITIZER WITH

FREEZER MAY CAUSE CORROSION OF

STAINLESS STEEL PARTS.

Figure 12. Clean Control

In general, sanitizing may be conducted as follows:

D. Clean sides of hopper, mix inlet regulator and

underside of hopper cover using a sanitized soft

bristle brush dipped in the sanitizing solution (Fig.

13).

A. Push the mix inlet regulator fully into the hopper (Fig.

10).

Figure 13. Sanitizing Hopper

Figure 10. Mix Inlet Regulator

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E. After five minutes, place the bucket under the spigots

and open all three spigots to drain the sanitizing

solution. When the solution has drained, place the

CLEAN-OFF-SERVE switch in the OFF position.

Allow the freezer barrel to drain completely (Fig. 14).

CAUTION

DO NOT OVERFILL THE HOPPER. MIX LEVEL

MUST NOT BE HIGHER THAN 2” (5CM) FROM

THE TOP OF THE AIR INLET TUBE ON THE

MIX INLET REGULATOR.

E. The freezer barrel will automatically fill until it is about

½ full (about 3 min.) If the freezer barrel does not

fill, check for obstruction in the mix inlet regulator

“O” Ring, check for leaks at the mix inlet regulator

was installed correctly, or that the freezer is level.

F. Place the CLEAN-OFF-SERVE rocker switch in the

SERVE position, then press PUSH TO FREEZE

switch until the drive motor and compressor come

ON.

Figure 14. Spigot Opened and Solution Draining

NOTE

3.4

FREEZE DOWN AND OPERATION

After the gearmotor starts, there is a 3-second

delay before the compressor starts.

This section covers the recommended operating

procedures to be followed for the safe operation of the

freezer.

G. After about 6 to 10 minutes the freeze will shut OFF

and the green lens will illuminate. The product is

ready to serve. Freeze down time may be longer for

some frozen diet dessert mixes.

A. Sanitize just prior to use.

H. For normal dispensing, move the spigot handle open

60° (Fig. 16).

B. Place the CLEAN-OFF-SERVE switch in the OFF

position.

C. With spigots open, pour approximately 1 gallon (3.8

liters) of mix into the hopper. Allow the mix to flush

out about 8 ounces (0.23 liters) of sanitizing solution

and liquid mix. Close the spigot. (Fig.15)

Figure 16. Dispensing Product

CAUTION

Figure 15. Pouring the Mix

REFRIGERATION IS AUTOMATICALLY

ACTIVATED WHEN THE SPIGOT IS OPENED.

CLOSE THE SPIGOT COMPLETELY AFTER

DISPENSING.

D. Fill hoppers with approximately 6-1/2 gallons (11.4

liters) of pre-chilled (40°F or 4°C) mix.

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I. The freezer is designed to dispense the product at Mix does not improve with age. Old mix, or mix that has

a reasonable draw rate. If the freezer is overdrawn, been stored at too high a temperature, can result in a

the result is a soft product or a product the will not finished product that is less than satisfactory from the

dispense at all. If this should occur, allow the freezer appearance and taste standpoint. To retard bacteria

to run for approximately 30 seconds before growth in dairy based mixes; the best storage

dispensing additional product. After a while the temperature range is between 36° to 40°F (2.2° to

operator will sense or feel the freezer is beginning 4.4°C).

to fall behind, and will slow down the rate of draw so

as not to exceed the capacity.

Some products tend to foam more than others do. If

excess foam should occur, skim off with a sanitized

J. Do not operate the freezer when the level indicator utensil and discard (Fig. 17). Periodically, stir the mix in

shows the hopper is empty.

the hopper with a sanitized utensil.

NOTE

The freezer has a standby mode sometimes

referred to as a sleep or energy conservation

mode. When the freezer is not used, after a preset

time, it will remain there until someone draws a

product or pushes the PUSH TO FREEZE switch.

In the standby mode, the freezer will keep the

product below 45°F. Standby modes are not to

be used in place of cleaning and sanitizing.

Federal, State, and Local regulatory agencies

determine frequency of cleaning and sanitizing.

Figure 17. Skimming the Foam

3.5

MIX INFORMATION

3.6

REMOVING MIX FROM FREEZER

Mix can vary considerably from one manufacturer to Toremovethemixfromthefreezer,refertothefollowing

another. Differences in the amount of butterfat content steps:

and quantity and quality of other ingredients have a

direct bearing on the finished frozen product. A change

A. Remove the mix inlet regulator from the hopper by

in freezer performance that cannot be explained by a

pulling straight up (Fig. 18).

technical problem may be related to the mix. When

changing from one type of mix to another such a yogurt

to Vitari, you may have to change the mix inlet regulator

and/or control settings. Please call your distributor for

further information.

Proper product serving temperature varies from one

manufacturer’s mix to another. Mixes should provide a

satisfactory product in the 18° to 20°F (-7° to -6°C)

range.

When checking the temperature, stir the thermometer

in the frozen product to read the true temperature.

Figure 18. Removing Mix Inlet Regulator

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B. Place the CLEAN-OFF-SERVE rocker switch in the E. Repeat steps A through D using a mild detergent

CLEAN position. Allow the mix to agitate in freezer

barrel until the mix has become a liquid.

solution.

3.8

DISASSEMBLY OF FREEZER

PARTS

C. Drain the liquid mix by opening the spigot. A bucket

or container should be placed under the spigot to

catch the liquid mix (Fig. 19).

CAUTION

PLACE THE CLEAN-OFF-SERVE ROCKER

SWITCHES IN THE OFF POSITION BEFORE

DISASSEMBLING FOR CLEANING OR

SERVICING.

Inspection for worn or broken parts should be made at

every disassembly of the freezer for cleaning or other

purposes. All worn or broken parts should be replaced

to ensure safety to both the operator and the customer

and to maintain good freezer performance and a quality

product. Two normal wear areas are the auger flights

and front auger support bearing (Fig. 20). Frequency of

cleaning must comply with the local health regulation.

Figure 19. Draining Mix

D. Place the CLEAN-OFF-SERVE switch in the OFF

position.

3.7

CLEANING THE FREEZER

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

freezer must be cleaned. To clean the freezer, refer to

the following steps:

A. Close the spigot and fill the hoppers with 2 gallons

(7.5 liters) of cold tap water.

Figure 20. Auger Flight Wear and Front

Auger Support Wear

B. Place the CLEAN-OFF-SERVE switches in the

CLEAN position.

To disassemble the freezer, refer to the following steps:

C. Allow the water to agitate for approximately five

minutes.

A. Remove the mix inlet regulators from the hoppers

by pulling straight up.

D. Open the spigots to drain the water. Remember to

place a bucket or container under the spigots to catch

the water. When the water has drained, turn the

CLEAN-OFF-SERVE switches to the OFF position.

Allow the freezer barrel to drain completely.

B. Remove the front door by turning off the circular

knobs and then pulling the front door off the studs

(Fig. 21).

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E. Remove the auger assemblies from the freezer. Pull

the augers out of the freezer barrel slowly. As the

augers are being pulled out, carefully remove each

of the plastic flights with springs (Fig. 24).

Figure 21. Removing Front Door

C. Remove rosette cap. Push the spigot body through

the bottom of the front door and remove the spigot

body (Fig. 22).

Figure 24. Auger Shafts

F. Keep the rear of the auger shafts tipped up once

they are clear of the freezer barrels to avoid dropping

rear seals.

G. Remove the rear seals.

H. Wipe socket lubricant from the drive end (rear) of

the auger with a cloth or paper towel.

I. Remove all “O” Rings from parts by first wiping off

the lubricant using a clean paper towel. Then

squeeze the “O” Ring upward with a dry cloth. When

a loop is formed, roll out of the “O” Ring groove (Fig.

25).

Figure 22. Removing Spigot

D. Remove the front auger supports and bearings (Fig.

23).

Figure 25. Removing O-Ring

WARNING

DO NOT USE ANY TYPE OF SHARP OBJECT

TO REMOVE THE “O” RINGS.

Figure 23. Removing Auger Supports

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J. Remove drain trays.

B. Place all parts in the sanitizing solution, then remove

and let air dry.

3.9

CLEANING THE FREEZER PARTS

C. Using this sanitizing solution and the large barrel

brush provided, sanitize the rear of the barrel and

drive area by dipping the brush in the sanitizing

solution and brushing the rear of the barrel.

Placeallloosepartsinapanorcontainerandtaketothe

wash sink for cleaning. To clean freezer parts refer to

the following steps:

3.11 ASSEMBLY OF FREEZER

A. Place all parts in warm mild detergent water and

clean with brushes provided. Rinse all parts with

clean hot water.

To assemble the freezer parts, refer to the following

steps:

CAUTION

NOTE

DO NOT DAMAGE PARTS BY DROPPING OR

ROUGH HANDLING.

Petro-Gel sanitary lubricant or equivalent must

be used when lubrication of parts is specified.

B. Wash the hopper and freezer barrel with warm

detergent water and brush provided (Fig. 26).

NOTE

The United States Department ofAgriculture and

the Food and Drug Administration require that

lubricants used on food processing equipment

be certified 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

lubrication to exposed surfaces of the “O” Rings.

Apply thin film of sanitary lubricant to metal part of

rear seal. Also apply a thin film of sanitary lubricant

inside the hole on the front of the auger.

B. Assemble the rear seals onto the augers with the

large end to the rear. Be sure the “O” Ring is in place

before installing the rear seal.

Figure 26. Cleaning Freezer Barrel

C. Clean the drip tray and insert with a soap solution.

Rinse with clean hot water.

C. Lubricate the inside of the auger drive sockets (rear)

with a small amount of white socket lubricant.Asmall

container of socket lubricant is shipped with the

freezer.

3.10 SANITIZE FREEZER AND

FREEZER PARTS

A. Use a sanitizer mixed according to manufacturer’s

instructions to provide a 100 parts per million

strength solution. Mix sanitizer in quantities of no

less then two gallons (7.5 liters) of 120°F water.Allow

the sanitizer to contact the surface for 5 minutes.

Any sanitizer must be used only in accordance with

the manufacturer’s instructions.

D. Screw the springs onto the studs in plastic flights.

Springs must be screwed into the flights

completely to provide proper tension (Fig. 27).

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Figure 27. Exploded View of Auger

CAUTION

DO NOT PLACE THE MIX INLET REGULATOR

INTO THE HOPPER BEFORE INSTALLING THE

AUGER.

E. Install the two plastic flights onto rear of the auger

and insert part way into freezer barrel.

F. Install the remaining plastic flights, push the auger

into the freezer barrel and rotate slowly until the

auger engages the drive shaft.

G. Install the auger support and bearing into the front

of the augers with one leg of the support at 9 o’clock.

Figure 28. Exploded View of Front Door

CAUTION

NOTE

FINGER TIGHTEN THE CIRCULAR KNOBS

EVENLY. DO NOT OVERTIGHTEN KNOBS.

Apply a small amount of Petro-Gel to the surface

of the cam on the spigot handle prior to assembly

of handle to the spigot body.

Look for the proper seal between the freezer barrel, “O”

Ring, and front doors.

H. Install the spigot bodies with ”O” Rings into the front

door from the bottom (Fig. 28). Push straight up until

the spigots are in place. Install rosette cap.

K. Install the mix inlet regulators into the hopper with

the air inlet (long) tube toward the front of the freezer

(Fig. 29).

I. Install the front door on the freezer.

J. Install the circular knobs on the freezer studs.

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Figure 29. Installing Mix Inlet Regulators

NOTE

Refer to Section 3.3 for sanitizing the

assembled freezer before filling with mix.

Figure 30. Drain Trays

3.12 ROUTINE CLEANING

L. Install the drain trays (Fig. 30).

CAUTION

To remove spilled or dried mix for the freezer exterior,

simply wash in the direction of the finish with warm

soapy water and wipe dry. Do not use highly abrasive

materials, as they will mar the finish.

DRAIN TRAYS MUST BE IN PLACE BEFORE

OPERATING FREEZER TO PREVENT

DAMAGE FROM POSSIBLE AUGER SEAL

LEAKS.

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SECTION 4

MAINTENANCE INSTRUCTIONS

Run a sanitized brush down mix inlet regulator

(carburetor) tubes (Fig. 32).

4.1

PREVENTIVE MAINTENANCE

It is recommended that a preventive maintenance

schedule be followed to keep the freezer clean and

operating properly. The following steps are suggested

as a preventive maintenance guide.

WARNING

NEVER ATTEMPT TO REPAIR OR PERFORM

MAINTENANCE ON FREEZER UNTIL THE

MAIN ELECTRICAL POWER HAS BEEN

DISCONNECTED.

Figure 32. Sanitizing Mix Inlet Regulator

(Carburetor)

The United States Department of Agriculture and the

Food and Drug Administration require that lubricants

used on food processing equipment be certified for this

use. Use lubricants only in accordance with the

manufacturer’s instructions.

NOTE

When sanitizing, the skimmer, brush and the hand

that holds the mix inlet regulator (carburetor) must

also be sanitized.

A. DAILY

Note any unusual noises or operating

conditions upon startup. Repair or rectify

immediately if problems exist.

The exterior should be kept clean at all times

to preserve the luster of the stainless steel. A

mild alkaline cleanser is recommended. Use a

soft cloth or sponge to apply the cleanser.

NOTE

Do not use acid cleaners, strong caustic

compounds or abrasive materials to clean any

part of the freezer exterior or plastic parts.

Using a sanitized one-pint aluminum overrun

container, skim the mix in the hopper to remove

any foam buildup (Fig. 31).

CAUTION

INSPECTION FOR WORN OR BROKEN PARTS

SHOULD BE MADE AT EACH DISASSEMBLY

OF THE FREEZER.

B. WEEKLY

Check all “O” Rings for excessive wear and

replace if necessary.

Check scraper blades, front bearing and rear

bearing for wear damage (paragraph 3.8).

Figure 31. Skimming Hopper

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C. MONTHLY

D. Blow out the dirt from the back of the condenser.

Most of the dirt will cling to the wet towel.

Check drive belt for wear.

CAUTION

Check condenser for dirt.

THIS PROCEDURE EMITS A LOUD NOISE.

4.2

FREEZE-UP

E. An alternative method is to clean with a condenser

brush and vacuum.

If a freeze-up does occur, use the following steps to

thaw the mix in the freezer barrel:

4.4

EXTENDED STORAGE

CAUTION

Refer to the following steps for winterizing the freezer

for winter lay-up or any extended period of storage.

IF THE DRIVE BELT SQUEALS WHEN THE

CLEAN-OFF-SERVE SWITCH IS PLACED IN

THE SERVE POSITION, OR WHEN THE

SPIGOT IS OPENED TO DISPENSE PRODUCT,

TURN THE CLEAN-OFF-SERVE SWITCH TO

THE OFF POSITION.

A. Clean thoroughly with a warm mild detergent all

parts that come in contact with mix. Rinse in clear

water and dry all parts. Do not sanitize as prolonged

exposure of metal parts to some sanitizers can

cause corrosion.

A. Check to make sure the spigot handle is closed

completely, spigot switch is functioning properly,

there is mix in the hopper, or the mix inlet regulator

(carburetor) is not plugged.

NOTE

Do not let cleaning solution stand in freezer barrel

or hopper during the shutdown period.

B. If drive motor overload was tripped, remove the

middle front panel and push the reset button. If it

will not reset wait 5 minutes and try again.

B. Remove, disassemble, and clean the front door,

auger and mix inlet regulator (carburetor). Leave

disassembled during the shutdown period.

C. Place the CLEAN-OFF-SERVE switch in the SERVE

position and push the PUSH TO FREEZE switch.

C. Place plastic auger flights, rear bearing and front

bearing in a plastic bag with a moist paper towel.

This will prevent parts from becoming brittle if

exposed to dry air over an extended period of time

(over 30 days).

D. The product will be ready to serve when the green

light illuminates.

E. If the freezer continues to freeze-up, contact a

qualified refrigeration service technician, local

distributor, or Stoelting, Inc.

CAUTION

BARREL MUST BE EMPTY FOR FOLLOWING

PROCEDURE.

4.3

CONDENSER SERVICE

D. On water cooled freezers, shut off and disconnect

water supply at rear of freezer; run compressor for

2 to 3 minutes to open water valve, and blow out all

water first through inlet, then outlet line, using air or

carbon dioxide.

A. Visually inspect the condenser for dirt by shining a

light through the louvers.

B. If the condenser is dirty, vacuum all loose dirt.

E. Disconnect the freezer from the electrical supply in

the building.

C. If using compressed air or CO-2 tank to blow out

the dirt, first place a wet towel over the front of the

condenser.

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4.5

TROUBLESHOOTING

WARNING

NEVER ATTEMPT TO REPAIR OR PERFORM MAINTENANCE ON FREEZER UNTIL THE MAIN

ELECTRICAL POWER HAS BEEN DISCONNECTED.

Problem

Possible Cause

Remedy

Freezer does not run

1. Power to freezer is off.

1. Supply power to freezer

2. Fuse or circuit breaker is blown or tripped. 2. Replace or reset. (If condition continues

See note 1 or 2)

3. Freeze-up

3. See paragraph 4.3.

4. High-pressure cutout tripped

5. Drive motor OFF ON Timer.

4. Correct problem and reset.

5. Place the CLEAN-OFF-SERVE switch to

the OFF position the reset.

Freezer shuts off on error

Product is too soft

1. Low or no mix in hopper.

2. Low or no overrun.

3. Refrigeration problem.

1. Add mix.

2. Check mix inlet regulator.

3. Check system. (See note 1.)

1. No vent space for free flow of cooling air. 1. A minimum of 6 inches of vent space

required. (See paragraph 2.2).

2. Air temperature entering condenser is

above 100°F. (Air cooled.)

2. Change location or direct hot

air away from freezer.

3. Condenser is dirty. (Air-cooled)

4. Consistency setting too soft

5. Stabilizers in mix are broken down.

3. Clean (See paragraph 4.6).

4. Readjust (See paragraph 4.2).

5. Remove mix, clean, sanitize and freeze

down with fresh mix.

6. Refrigeration problem.

6. Check system. (See note 1.)

Product is too firm.

1. Consistency setting too firm

2. Spigot not fully closed.

1. Readjust. (See paragraph 4.2.)

2. Fully close spigot.

Product does not

Dispense.

1. No mix in hopper

2. Mix inlet regulator (carburetor) mix inlet 2. Unplug, using a small sanitized

1. Fill hopper with mix.

tube is plugged.

brush.

3. Special mix inlet regulator (carburetor)

needed for mix being used.

4. Capacity of freezer is being exceeded.

5. Drive motor overloaded.

3. Order special mix inlet

regulator (carburetor). (See note 2.)

4. Slow up on the draw rate.

5. Place reset lever in the ON position. (If

condition continues see note 1 or 2.)

6. See paragraph 4.4.

6. Drive belt failure.

7. Freeze-up

7. See paragraph 4.3.

Drive belt slipping

1. Worn drive belt.

2. Freeze-up

1. Replace drive belt. (See paragraph 4.4.)

2. See paragraph 4.3.

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Low overrun

1. Mix inlet regulator (carburetor) missing. 1. Replace mix inlet regulator (carburetor).

2. Mix inlet regulator (carburetor) “O” Ring 2. Replace mix inlet regulator

missing.

(carburetor) “O” Ring.

3. Mix inlet regulator (carburetor) air tube

blocked.

3. Clean with sanitizer brush.

Front door leaks.

1. Front door knobs are loose.

2. Spigot parts are not lubricated.

3. Chipped or worn spigot “O” Rings.

4. “O” Rings or spigot installed wrong.

5. Spigot hole in front door nicked or

scratched.

1. Tighten knobs.

2. See paragraph 3.11.

3. Replace “O” Rings.

4. Remove spigot and check “O” Rings.

5. Replace front door.

Hopper will not

Maintain mix

temperature below

45°F (7°C).

1. EPR valve needs to be adjusted.

2. Temperature control failure.

3. Refrigeration problem.

1. (See note 1.)

2. Replace. (See notes 1 or 2.)

3. Check system. (See note 1.)

1. Must be performed by a qualified service person.

2. The local dealer, distributor or Stoelting, LLC, Service Department should be contacted. Write or call:

Stoelting, LLC

502 Hwy. 67,

Kiel, WI 53042

Phone (920) 894-2293.

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SECTION 5

REPLACEMENT PARTS

B. Remove the faulty lamp by pulling out the lamp puller

5.1

HOW TO ORDER PARTS

(See Fig. 33).

Toassurereceiptoftheproperreplacementparts,supply

your dealer or distributor with the following information:

A. Model number of equipment.

B. Serial number of model, stamped on nameplate.

PartNumber

324014

324141

324509

324548

324346

324393

324803

324804

324806

324798

324125

Description

Decal Black Arrow

Decal Caution Rotating Blades

DecalCleaning

Figure 33. Push To Freeze Light/Switch Assembly

DecalVentilation

C. To install the new lamp, line up the lamp end with the

receptacle and push fully in.

DecalCaution

Decal – Drip Tray

Decal–HeaderPanel(StoeltingLogo)

Decal - Header Panel (Stoelting Swirl)

Decal - Header Panel (A & W Logo)

Decal – CLEAN/OFF/SERVE

Decal – Elec. Shock Hazard

D. Reinstall the lens by pushing firmly in. When installed

“PUSH TO” might be right side up.

NOTE

LED light bulbs require correct polarity. If the bulb

does not illuminate, remove the bulb, turn 180°

and replace.

C. Part number, part name and quantity needed.

Common part names and numbers are listed in this

manual.

5.3

CLEAN-OFF-SERVE ROCKER

SWITCH REPLACEMENT

5.2

PUSH TO FREEZE LIGHT/SWITCH

LAMP REPLACEMENT

A. Remove side panel.

TochangealampinthePUSHTOFREEZEswitch/light

follow these simple steps:

WARNING

DISCONNECT FREEZER FROM ELECTRICAL

SUPPLY SOURCE BEFORE SERVICING.

A. Grasp the lens with your thumb and forefinger and

pull out.

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WARRANTY

SOFT SERVE / SHAKE FREEZERS

1. Scope:

Stoelting, LLC warrants to the first user (the “Buyer”) that the freezer cylinders, hoppers, compressors, drive motors,

speed reducers, auger and auger flights of Stoelting soft serve / shake freezers will be free from defects in materials

and workmanship under normal use and proper maintenance appearing within five (5) years, and that all other

components of such equipment manufactured by Stoelting will be free from defects in material and workmanship

under normal use and proper maintenance appearing within twelve (12) months after the date that such equipment is

originally installed.

2. Disclaimer of OtherWarranties:

THISWARRANTYISEXCLUSIVE;ANDSTOELTINGHEREBYDISCLAIMSANYIMPLIEDWAR-

RANTYOFMERCHANTABILITYORFITNESSFORPARTICULARPURPOSE.

3. Remedies:

Stoelting’s sole obligations, and Buyer’s sole remedies, for any breach of this warranty shall be the repair or (at

Stoelting’s option) replacement of the affected component at Stoelting’s plant in Kiel, Wisconsin, or (again, at

Stoelting’s option) refund of the purchase price of the affected equipment, and, during the first twelve (12) months of

the warranty period, deinstallation/reinstallation of the affected component from/into the equipment. Those obliga-

tions/remedies are subject to the conditions that Buyer (a) signs and returns to Stoelting, upon installation, the

Checklist/Warranty Registration Card for the affected equipment, (b) gives Stoelting prompt written notice of any

claimed breach of warranty within the applicable warranty period, and (c) delivers the affected equipment to Stoelting

or its designated service location, in its original packaging/crating, also within that period. Buyer shall bear the cost

and risk of shipping to and from Stoelting’s plant or designated service location.

4. Exclusions and Limitations:

This warranty does not extend to parts, sometimes called “wear parts”, which are generally expected to deteriorate

and to require replacement as equipment is used, including as examples but not intended to be limited to o-rings,

auger seals, auger support bushings and drive belts. All such parts are sold

AS IS.

Further, Stoelting shall not be responsible to provide any remedy under this warranty with respect to any component

that fails by reason of negligence, abnormal use, misuse or abuse, use with parts or equipment not manufactured or

supplied by Stoelting, or damage in transit.

THEREMEDIESSETFORTHINTHISWARRANTYSHALLBETHESOLELIABILITYSTOELTING

AND THE EXCLUSIVE REMEDY OF BUYER WITH RESPECT TO EQUIPMENT SUPPLIED BY

STOELTING;AND IN NO EVENTSHALLSTOELTINGBE LIABLE FORANYINCIDENTALOR

CONSEQUENTIALDAMAGES, WHETHER FOR BREACH OFWARRANTYOR OTHER CON-

TRACTBREACH, NEGLIGENCEOROTHERTORT, ORONANYSTRICTLIABILITYTHEORY.

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