Stoelting SO318 Operators Manual

Model SO218 / SO318

SERVICE MANUAL

Manual No. 513573 Rev.3

This manual provides basic information about the machine. Instructions and suggestions are given covering its operation and care.

The illustrations and speciﬁ cations are not binding in detail. We reserve the right to make changes to the machine without notice, and without incurring any obligation to modify or provide new parts for machines built prior to date of change.

DO NOT ATTEMPT to operate the machine until instructions and safety precautions in this manual are read completely and are thoroughly understood. If problems develop or questions arise in connection with installation, operation, or servicing of the machine, contact Stoelting.

stoeltingfoodservice.com

Stoelting Foodservice Equipment 502 Highway 67 Kiel, WI 53042-1600 U.S.A.

Main Tel: 800.558.5807 Fax: 920.894.7029

Customer Service: 888.429.5920 Fax: 800.545.0662 Email: foodservice@stoelting.com

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 speciﬁ c safety information, the following safety deﬁ ni- tions are provided to assist the reader.

The purpose of safety symbols is to attract your attention to possible dangers. The safety symbols, and their explanations, deserve your careful attention and understanding. The safety warnings do not by themselves eliminate any danger. The instructions or warnings they give are not substitutes for proper accident prevention measures.

If you need to replace a part, use genuine Stoelting parts with the correct part number or an equivalent part. We strongly recommend that you do not use replacement parts of inferior quality.

Safety Alert Symbol:

This symbol Indicates danger, warning or caution.

Attention is required in order to avoid serious personal injury. The message that follows the symbol contains important information about safety.

Signal Word:

Signal words are distinctive words used throughout

this manual that alert the reader to the existence and relative degree of a hazard.

WARNING

The signal word “WARNING” indicates a potentially hazardous situation, which, if not avoided, may result in death or serious injury and equipment/property damage.

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.

CAUTION

The signal word “CAUTION” not preceded by the safety alert symbol indicates a potentially hazardous situation, which, if not avoided, may result in equipment/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

1. INTRODUCTION

1.1 Remote Possibilities ...................................................................................................................... 1

1.2 Features ........................................................................................................................................ 1

1.3 Dispenser Specifications................................................................................................................ 2

2. INSTALLATION INSTRUCTIONS

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

2.2 Shipment and Transit ..................................................................................................................... 3

2.3 Freezer Installation...................................................................................................... ................... 3

2.4 Installing Permanent Wiring............................................................................................................ 4

3. INITIAL SET-UP AND OPERATION

3.1 Operator's Safety Precautions........................................................................................................ 5

3.2 Operating Controls and Indicators .................................................................................................. 5

3.3 Disassembly of Freezer Parts ........................................................................................................ 5

3.4 Cleaning the Freezer Parts............................................................................................................. 6

3.5 Sanitize Freezer and Freezer Parts................................................................................................ 6

3.6 Assembly of Freezer ...................................................................................................................... 6

3.7 Sanitizing ....................................................................................................................................... 7

3.8 Initial Freeze Down and Operation .................................................................................................. 8

3.9 Removing Product .......................................................................................................................... 8

3.10 General Operation Information ....................................................................................................... 9

4. PREVENTATIVE MAINTENANCE

4.1 Routine Cleaning ............................................................................................................................ 11

4.2 Preventative Maintenance............................................................................................................... 11

4.3 Extended Storage .......................................................................................................................... 11

4.4 Consistency Adjustment ................................................................................................................ 11

5. REFRIGERATION SYSTEM

5.1 Refrigeration System...................................................................................................................... 13

5.2 Compressor ................................................................................................................................... 13

5.3 Condenser...................................................................................................................................... 14

5.4 Evaporator...................................................................................................................................... 14

5.5 Hopper ........................................................................................................................................... 16

5.6 Capillary Tube ................................................................................................................................ 18

6. ELECTRICAL

6.1 Electrical........................................................................................................................................ 19

6.2 Front Electrical Box ....................................................................................................................... 19

6.3 Compressor Electrical Box............................................................................................................. 21

6.4 Major Component Replacement ..................................................................................................... 21

7. TROUBLESHOOTING .......................................................................................................................... 27

8. REPLACEMENT PARTS INFORMATION

8.1 Ordering Parts................................................................................................................................ 29

9. REFERENCE DRAWINGS .................................................................................................................... 31

10. ACCESSORIES

10.1 Fill-o-matic II ................................................................................................................................ 45

10.2 Fill-o-matic III................................................................................................................................ 49

11. ADDENDUM .......................................................................................................................................... 53

LIST OF ILLUSTRATIONS

FIGURE TITLE PAGE

1 Model SO218/318.................................................................................................. 1

2 Dispenser Specifications ....................................................................................... 2

3 Leveling Unit .......................................................................................................... 3

4 Controls................................................................................................................. 5

5 Disassembling Freezer .......................................................................................... 6

6 Front Door and Auger Assembly............................................................................ 6

7 Rear Seal Assembly.............................................................................................. 6

8 Retainer Clip .......................................................................................................... 7

9 Consistency Control Knob ..................................................................................... 8

10 Nameplates ...........................................................................................................13

11 Compressor Terminal Cover Removal .....................................................................13

12 Compressor Connections.......................................................................................13

13 Ohm Meter Connection..........................................................................................14

14 Condenser .............................................................................................................14

15 Access Ports .........................................................................................................15

16 TXV........................................................................................................................15

17 Heat Sink ..............................................................................................................15

18 Drier.......................................................................................................................16

19 EPR & Access Port...............................................................................................16

20 EPR Valve Adjustment ..........................................................................................17

21 EPR Heat Sink ......................................................................................................17

22 Filter Drier..............................................................................................................18

23 Drier Cap. Tube Assembly.....................................................................................18

24 Electrical Panel .....................................................................................................19

25 Switch Removal ..................................................................................................... 19

26 Light Bulb Replacement.........................................................................................19

27 Safety Switch ........................................................................................................20

28 Liquid Level Control................................................................................................20

29 Pump Relay...........................................................................................................20

30 Torque Switch........................................................................................................21

31 Compressor Contactor...........................................................................................21

32 Fan Motor..............................................................................................................21

33 Condenser .............................................................................................................22

34 Electrical Wires .....................................................................................................22

35 Compressor ...........................................................................................................23

36 Torque Spring ........................................................................................................23

37 Torque Switch Bracket...........................................................................................24

38 Belt Tensioner........................................................................................................24

39 Bearing Assembly .................................................................................................24

SECTION 1

INTRODUCTION

1.1 REMOTE POSSIBILITIES

The Stoelting Optima delivers frozen drink profits by the pitcher. The Model SO218/318 is a high-volume producer of ready-to-serve frozen cocktails or frozen neutral base for those special drink recipes. From an extra-small space, the Optima’s compact design and high capacity output will give you extra-large profits.

1.2 FEA TURES

High Capacity

- 15-18 gallons per hour output

- Thick, stackable slush for post-mixing

- Or, ready-to-serve pre-mixed products

High Efficiency Evaporator/ Auger

- Stainless steel construction

- Long life auger blades

- Quiet, smooth operation

- 8 qt. freezing cylinder capacity

Figure 1. Model SO218/318

Consistency Control

- Adjustable for thick or thin products

- Sensitive to product demand

- 24 volt control circuits

Dispensing Head Door

- ”No-Freeze” design prevents blockages

- Fast dispense for quick fill of pitchers

- Controlled dispense for drinks by the glass

- Convenient pull-type handle

- Attractive, clear, see-thru design

- Visible, moving product for merchandising appeal

1.3 DISPENSER SPECIFICATIONS

Figure 2. Dispenser Specifications

Electrical Refrigeration Crated Dimensions Dimensions

208/230/60/1 HFC-404A environmentally- Width: 25" (63.5cm) Width: 17-5/8"(44.7cm) 20 amp circuit & plug friendly refrigerant Depth: 51" (129.5cm) Depth: 26-1/8"(66.4cm) 12 running amps SO318 Air-cooled or water- Height: 66" (167.6cm) Height: 63-1 1/16"(161.8cm)

cooled, self contained Weight: 410lbs.(186kg) w/casters SO218 Air-cooled or water- Weight: 315lbs.(142.9kg)

cooled, self contained

SECTION 2

INSTALLATION INSTRUCTIONS

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.

Take notice of all warning labels on the freezer. 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. Labels should be checked periodically to be sure they can be recognized as warning labels.

If danger, warning or caution labels are needed, indicate the part number, type of label, location of label, and quantity required along with your address and mail to:

STOELTING, LLC

ATTENTION: Customer Service

502 Hwy. 67

Kiel, Wisconsin 53042

Figure 3. Leveling Unit

2.2 SHIPMENT AND TRANSIT

The freezer has been assembled, operated and inspected at the factory. Upon arrival at the final destination, the complete freezer must be checked for any damage which may have occurred during transit.

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 freight bill until the freezer has been checked for damage. Have the carrier note any visible damage on the freight bill. If concealed damage and/or shortage is found later, advise the carrier within 10 days and request inspection. The customer must place claim for damages and/or shortages in shipment with the carrier. Stoelting,

Inc. cannot make any claims against the carrier.

2.3 FREEZER INSTALLATION

Installation of the freezer involves moving the freezer close to its permanent location, removing all crating, setting in place, assembling parts, and cleaning.

A. Uncrate the freezer. B. The freezer must be placed in a solid level position. To

level adjust casters.

C. The freezer is equipped with an air cooled condenser

and requires correct ventilation; the front is the intake and the back is the discharge. Both front and back require 3" clearance for proper operation.

D. Place all switches in the OFF position.

E. Connect the power cord. The plug is designed for 208/

230 volt/20 amp duty. The unit must be connected to a properly grounded receptacle. The electrical cord furnished as part of the freezer has a three prong grounding type plug. The use of an extension cord is not recommended. If one must be used, use one with a size 12 gauge or heavier with a ground wire. Do not use an adaptor to get around grounding requirements.

CAUTION

DO NOT ALTER OR DEFORM PLUG IN ANY WAY!

F. Install the drip tray, cover and other miscellaneous

parts on the freezer.

2.4 INSTALLING PERMANENT WIRING

If permanent wiring is required by local codes, the following procedure must be performed.

WARNING DISCONNECT FREEZER FROM THE SOURCE OF ELECTRICAL SUPPL Y BEFORE SERVICING.

A. Remove the right side panel and electrical box cover

to gain access to the power cord connection.

B. Disconnect the black and white wires from the termi-

nal block (L1 and L2). Disconnect the green ground wire from the grounding screw.

C. Remove the strain relief connector from the bottom of

the freezer base.Remove the power cord.

D. Install permanent wiring according to local code. E. Connect black wire to L1 on the terminal block.

Connect the white wire to L2 on the terminal block. Connect the green or yellow and green striped ground wire to the grounding screw.

F. Replace all panels.

SECTION 3

INITIAL SETUP AND OPERATION

3.1 OPERATOR'S SAFETY PRECAUTIONS

SAFE OPERA TION IS NO ACCIDENT; Observe these rules:

A. Know the freezer. Read and understand the

Operating Instructions.

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.

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.

Never attempt 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. Never operate the freezer if unusual or excessive noise or vibration occurs.

3.2 OPERATING CONTROLS AND INDICATORS

Before operating the freezer, it is required that the operator know the function of each operating control. Refer to Figure 4 for the location of the operating controls on the freezer.

C. Mix Low Light

The Mix Low light will illuminate when you are low on mix.

CAUTION DO NOT OPERA TE FREEZER WHEN THE LOW MIX LIGHT IS ILLUMINATED OR DAMAGE TO THE FREEZER COULD RESULT.

D. Front Door Interlock Switch

When the front door is removed the freezer will not run. When the front door is installed a stanless steel peg will close the switch and the freeezer will run.

E. High Pressure Cutout Switch (water cooled only)

The high pressure cutout switch (high limit control) is located on the lower left side. When the switch is tripped nothing will run. Push to reset.

Pump Off/On Switch

ËË

ÇÇ

Mix Low

Light

Front Door Interlock Switch

ÇÇ

Clean/Off/Serve

Switch

A. Pump OFF/ON Switch (Model SO318 only)

The pump OFF/ON Switch is a two position switch. In the OFF position the pump will not run. In the ON position the pump will run until the proper liquid level is reached, then stop. If the hopper does not fill completely , place the switch in the OFF position, then back to ON to continue filling.

WARNING THE CLEAN/OFF/SERVE SWITCH MUST BE PLACED IN THE OFF POSITION WHEN DISASSEMBLING FOR CLEANING OR SERVICING. THE FREEZER MUST BE DISCONNECTED FROM ELECTRICAL SUPPLY BEFORE REMOVING ANY ACCESS P ANEL.

B. CLEAN/OFF/SERVE Switch

The CLEAN/OFF/SERVE switch is a three position toggle and refrigeration switch used to control the operation of the agitator. When the switch is placed in the CLEAN position, the agitator will rotate.

When the switch is placed in the OFFposition, nothing will operate. When the switch in placed in the SERVE position, the agitator and refrigeration system will run until proper consistency is reached then stop.

Figure 4. Controls

3.3 DISASSEMBL Y OF FREEZER P ARTS

CAUTION PLACE THE CLEAN/OFF/SERVE SWITCH 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. Frequency of cleaning must comply with the local health regulations.

T o disassemble the freezer , refer to the following steps: A. Disconnect hose from hopper cover (Model SO318

only).

B. Remove hopper cover.

C. Remove retaining clip and adaptor (Model SO318

only).

D. Remove the front door by turning off the knobs, and

then pull the front door off the studs.

Figure 5. Disassembling Freezer

E. Remove the spigot body from the front door bypu lling

the retaining pin out of the spigot handle. Push the spigot body thru the bottom of the front door.

SOFT RUBBER SURFACE

Figure 7. Rear Seal Assembly

3.4 CLEANING THE FREEZER PARTS

Place all loose parts in a pan or container and take to the wash sink for cleaning. To clean freezer parts refer to the following steps:

A. Place all parts in warm mild detergent water and

clean with brushes provided. Rinse all parts with clean hot water.

DO NOT DAMAGE PARTS BY DROPPING OR ROUGH HANDLING.

HARD CARBON SURFACE

CAUTION

F. Remove the agitator assembly from the freezer. Pull

the agitator assembly out of the freezer barrel.

G. Keep the rear of the agitator assembly tipped up

once it is clear of the freezer barrel to avoid dropping rear seal.

H. Remove the front agitator support bearing and the

two agitator blades. I. Remove the rear seal assembly . J. Wipe socket lubricant from the drive end (rear) of the

agitator with a cloth or paper towel. K. Remove all “O” Rings.

W ARNING DO NOT USE ANY TYPE OF SHARP OBJECT TO REMOVE THE “O” RINGS.

B. Wash the freezer barrel with warm detergent water

and brushes provided.

C. The exterior should be kept clean at all times to

perserve the lustre of the stainless steel. A mild alkaline cleaner is recommended. Use a soft cloth or sponge to apply the cleaner.

D. Remove the drip tray insert and drain tray. Clean with

a soap solution. Rinse with clean hot water.

3.5 SANITIZE FREEZER AND FREEZER P ARTS

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 than 2 gallons (7.5 liters) of 120°F water. Allow the sanitizer to contact the surfaces to be sanitized for 5 minutes. Any sanitizer must be used only in accordance with the manufacturer’s instructions.

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

and let air dry .

Figure 6. Front Door and Auger Assembly

3.6 ASSEMBL Y OF FREEZER

T o assemble the freezer part s, refer to the following steps:

NOTE

Petro-Gel sanitary lubricant or equivalent must be used when lubrication of parts is specified.

NOTE

The United Sates 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.

A. Assemble spigot “O” Rings onto parts dry , without

lubrication. Then apply a thin film of sanitary lubrication to exposed surfaces of the “O” Rings.

K. Install hopper cover. L. Connect mix hose to hopper cover (Model SO318

only).

3.7 SANITIZING

Sanitizing must be done after the freezer is clean and just before filling with mix. Sanitizing the night before is not effective. However, you should always clean the freezer and parts after using it.

B. Assemble the rear seal assembly onto the agitator.

Be sure the “O” Ring is in place before installing the rear seal. Do not lubricate.

C. Lubricate the agitator drive (rear) with a small

amount of white socket lubricant. A small container of socket lubricant is shipped with the freezer.

D. Install the two plastic agitator blades onto the

agitator. Install front agit ator bearing to the door.

E. Push the auger into the freezer barrel and rotate

slowly until the agitator engages the drive socket.

F. Install the spigot body with “O” Rings into the front

door from the bottom. Push straight up until the spigot is in place. Place the spigot handle into the spigot and insert the retainer pin.

G. Install door “O” Ring after lubricating. H. Install the front door on the freezer. I. Install the knobs on the freezer studs.

CAUTION FINGER TIGHTEN THE KNOBS EVENL Y . DO NOT OVER-TIGHTEN KNOBS.

WARNING THE UNITED ST ATES DEP ARTMENT OF AGRICUL TURE AND FOOD AND DRUG ADMINISTRATION REQUIRE THAT ALL CLEANING AND SANITIZING SOLUTIONS USED WITH FOOD PROCESSING EQUIPMENT BE CERTIFIED FOR THIS USE. USE “STERA-SHEEN” OR EQUIVALENT.

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 must be used only in accordance with the manufacturer’s instructions.

NOTE

Stoelting, Inc. has found that STERA-SHEEN GREEN LABEL SANITIZER AND CLEANER does an effective job of properly sanitizing and cleaning a soft serve freezer. We therefore include a sample with each new freezer. For further information read the directions on the packet. Other products may be as effective.

Look for the proper seal between the freezer barrel door, “O” Ring, and front door.

J. Install hose adaptor onto hopper cover and secure

with retainer clip (SO318 only). Figure 8.

Figure 8. Retainer Clip

CAUTION PROLONGED CONTACT OF SANITIZER WITH FREEZER MA Y CAUSE CORROSION OF ST AINLESS STEEL P ARTS.

In general, sanitizing may be conducted as follows: A. Prepare 4 gallons (15 liters) of sanitizing solution

following manufacturer’s instructions, then pour into hopper (pump thru auto fill, SO318 only).

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

position. Check for leaks around the front door seal.

C. After five minutes, open spigot to drain sanitizing

solution. When solution has drained, place the CLEAN/OFF/SERVE switch in the OFF position. Allow the freezer barrel to drain completely .

3.8 INITIAL FREEZE DOWN AND OPERA TION

This section covers the recommended operating procedures to be followed for the safe operation of the freezer.

A. Sanitize just prior to use. B. Place the CLEAN/OFF/SERVE switch in the OFF

position.

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

SERVE position. The product will be ready to serve in about 15 minutes.

3.9 REMOVING PRODUCT

Before disassembly, all product must be removed. A. Open spigot and completely drain freezer.

C. With the spigot open, pour one cup of mix into the

hopper. Allow approximately 8 oz. of sanitizing solution and mix to drain out. Close the spigot and fill the hopper with mix.

B. Prepare not less than 3 gallons of warm detergent

water and pour into hopper (pump thru auto fill SO318 only).

C. Use a brush to clean the hopper then completely

drain freezer.

ÊÊ

Remove plug to

access consistency

adjustment screw

Figure 9. Consistency Control

3.10 GENERAL OPERA TION INFORMA TION

The SO218/318 is a cocktail/slush freezer . It is available in 208-230 volt, either air-cooled or water-cooled. The air-cooled version has front-to-back airflow requiring three inches of air space in the front and back for proper refrigeration. This unit is not supplied with a pump, however, S toelting does offer the Fill-O-Matic II (electric) and Fill-O-Matic III (gas) pumps FOR THE SO318. This freezer is intended for use with non-dairy products only and will produce 15-18 GPH.

1. Filling T o fill the freezer , pour mix into hopper until full. To fill freezers with the optional Fill-O-Matic pump, connect

the pump and turn the fill switch on. This will open the solenoid valve and the freezer will begin to fill. The liquid level control circuit is designed with a fill timer. This timer is designed to shut the compressor off if the top level probe is not satisfied before the timer expires. If the top level probe is not satisfied before the timer times out, it locks the compressor out and freezing will not occur, if this happens, turn the fill switch off and then back on, this will reset the timer .

2. Operation Once the freezer is full of mix, turn the clean-off-serve switch to the “serve” position. The drive motor will

start immediately . The compressor utilizes a 10 second delay-on-make / delay-on-break timer therefore, the compressor will start 10 seconds later. The compressor will continue to run until the drive motor torque switch is satisfied, then after a 10 second delay stop. The drive motor runs continuously in the “serve” or “clean” switch positions. There is no night mode or standby mode. If product is left in the freezer overnight we recommend to simply turn the freezer off. Do not run the freezer in “clean” overnight. Freeze down time will typically be 6-10 minutes depending on the type of product used and the starting product temperature.

3. Pump Operation When the mix level in the hopper drops below the bottom level probe, the solenoid valve opens and the

pump begins to fill until the top level probe is satisfied. When satisfied, the solenoid valve closes, and pump will continue to run until shut off pressure is reached. The electric pump will run until the pressure reaches the cut-out pressure of the pump. A gas pump will continue to run until the pressure in the mix line equals the gas pressure of the pump. If you wish to use the product in the hopper prior to cleaning, turn the pump off and turn the freezer fill switch off. This will disable the fill timer and allow the compressor to continue to run. Be cautioned that once the hopper is empty , the barrel could freeze up. Only run the freezer until the hopper is empty or damage may occur.

4. Fill Timer Operation The timer has ten dip switches, all switches placed in the “on” position are added together to make up the

total time delay. This freezer leaves the factory with 64, 128 and 256 in the “on” position, this is a total of 448 seconds. The preset time should be enough to fill the hopper up to the top level probe. Fill time may be dependent on what style pump is employed. The purpose of the timer is to disable the compressorif the mix supply runs out. When the timer expires, the mix low light will illuminate. If the mix low light is illuminated, the compressor is locked out of the electrical circuit and will not run. It may be necessary to change the timer settings to more closely match the pumping capacity of your pump.

SECTION 4

PREVENTIVE MAINTENANCE

4.1 ROUTINE CLEANING

T o remove spilled or dried mix from 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.

4.2PREVENT ATIVE MAINTENANCE

It is recommended that a maintenance schedule be followed to keep the freezer clean and operating properly.

W ARNING NEVER ATTEMPT TO REPAIR OR PERFORM MAINTENANCE ON FREEZER UNTIL THE MAIN ELECTRICAL POWER HAS BEEN DISCONNECTED.

A. Daily

1. The exterior should be kept clean at all times to preserve the lustre of the stainless steel. A mild alkaline cleaner is recommended. Use a soft cloth or sponge to apply the cleaner.

B. Weekly

2. If the condenser is dirty, using compressed air or CO2 tank, blow out the dirt from the fan side of the condenser.

3. An alternative method of cleaning the condenser is to use a condenser brush and vacuum.

NOTE

If the condenser is not kept clean, loss of refrigeration efficiency will result, causing extended run time or soft product consistency .

4.3 EXTENDED STORAGE

Refer to the following steps for storage of the freezer over any long period of shutdown time:

A. Turn CLEAN/OFF/SERVE switch to the OFF

position.

B. Disconnect (unplug) from the electrical supply

source.

C. Clean thoroughly with a warm detergent all parts that

come in contact with the mix. Rinse in clear water and dry all parts. Do not sanitize.

1. Check “O” Rings and rear seal for excessive wear and replace if necessary.

2. Remove the drip tray and insert. Clean the drip tray and insert and front of the freezer with a soap solution.

C. Monthly

CAUTION THE FREEZER HAS AN AIR COOLED CONDENSER AND MUST HA VE PROPER AIR CIRCULA TION. FAILURE TO CLEAN THE CONDENSER ON A REGULAR BASIS MAY RESULT IN SERIOUS FREEZER DAMAGE AND COULD VOID FREEZER WARRANTY .

1. Visually inspect the condenser for dirt by shining a light through the coil from the fan side of the condenser.

NOTE

Do not let the cleaning or sanitizing solution stand in the hopper or in the freezer barrel during the shutdown period.

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

agitator parts. Place the agitator blades and the front agitator support bearing in a plastic bag with a moist paper towel to prevent them from becoming brittle.

4.4 CONSISTENCY ADJUSTMENT

The consistency adjustment knob is located behind the right side panel near the back. Remove black plug to access. T o adjust use a straight bladed screwdriver . Turn clockwise for a thicker product and counterclockwise for a thinner product. Allow 15-30 minutes for the product to change consistency .

SECTION 5

REFRIGERATION SYSTEM

5.1 REFRIGERATION SYSTEM

The refrigeration system is a dual purpose system. The system is designed to operate the hopper and the evaporator simultaneously at different temperatures. The system is designed for efficient use with R404A as the refrigerant. The proper charges are indicated on the nameplate. Figure 10.

Figure 11. Compressor Terminal Cover Removal

Figure 10. Nameplate

5.2 COMPRESSOR

The compressor is designed specifically for use with R404A.

A. Winding Test

T o test the compressor motor windings for possible problems perform the following steps:

WARNING DISCONNECT FREEZER FROM ELECTRICAL SUPPL Y SOURCE BEFORE SERVICING.

1. Remove the retaining screws from the right side panel and slide the side panel out and down.

2. Remove the compressor terminal cover by inserting a standard screw driver between the terminal cover and retaining frame, pry out side then hold with your hand while prying the other side then remove cover. (Fig.11)

Figure 12. Compressor Connections

NOTE

The following values are for T ecumseh model CS14K6E-PFV-235 with the compressor at or about room temperature. For other models or brands consult the manufacturer's service data manual.

3. Connect ohmmeter to terminal C and R. Resistance through the run winding should be

1.10 ohms with the ohmmeter set at times one. (Fig. 13)

Figure 13. Ohm Meter Connection

4. Connect ohmmeter to terminal C and S. Resistance through the start winding should be 5.94 ohms with the ohmmeter set at times one.

5. To check if windings are shorted to ground connect one ohmmeter lead to a bare metal part on the compressor such as any copper line leading to or from the compressor and checking terminals C, R, and S.

NOTE

The compressor is equipped with an internal overload protector. If the compressor trips the overload check for high amperage draw.

2. Remove the retaining screws from the the right side and back panel and slide the panels out and down.

3. Visually inspect the condenser for dirt by shining a light through the coil from the back (inside) of the condenser. Figure 14.

Figure 14. Condenser

4. If the condenser is dirty, place a wet towel over the front (outside) of the condenser.

5. Using compressed air or CO2 tank, blow out the dirt from the back (inside) of the condenser. Most of the dirt will cling to the wet towel.

5.3 CONDENSER

The air cooled condenser is a copper tube and aluminum fin type. Condensing is totally dependent on air flow. A plugged condenser or restrictions in the louvered grill will restrict air flow. This will lower the capacity of the system and damage the compressor.

The condenser must be kept clean from dirt and grease. The freezer must have a minimum clearance of 6" at the left and right side of the unit for free flow of air. Make sure the freezer is not pulling over 100° F. of air in from other equipment in the area.

The condenser filter and condenser require periodic cleaning. To clean refer to the following procedures:

W ARNING DISCONNECT FREEZER FROM ELECTRICAL SOURCE BEFORE SERVICING.

1. Remove the condenser filter by pulling straight out to the front. Then visually inspect for dirt. If the filter is dirty, shake or brush excess dirt off the filter and wash in warm soapy water. Once the filter is clean rinse thoroughly in warm, clear water and shake dry, taking care not to damage the filter in any way.

An alternative method of cleaning the condenser is to use a condenser brush and vacuum.

NOTE

If the condenser is not kept clean, loss of refrigeration efficiency will result, causing extended run time or soft product consistency .

5.4 EVAPORATOR

An TXV (thermostatic expansion valve) is used to meter the refrigerant to the evaporator. The self regulating TXV is preset at the factory for approximately 28 PSIG at 75°F ambient temperature.

A. TXV Adjustments

To determine whether or not the TXV is in need of adjustment, perform the following procedure:

WARNING DISCONNECT FREEZER FROM ELECTRICAL SOURCE BEFORE SERVICING.

1. Remove the retaining screws from the bottom of the left and right side panels and slide the panels out and down.

2. Remove the cap from the low side access port and install a 0 - 100 PSIG gauge. Figure 15

Figure 15. Access Ports

3. Plug the freezer in, start the refrigeration cycle and read the pressure.

7. Once the 28 PSIG reading is obtained, replace the cap on the TXV, remove the pressure gauge and replace the low side schrader valve cap.

B. TXV Removal

CAUTION IF THE TXV IS REPLACED THE HEA T SINK (WET CLOTH) MUST BE USED TO PREVENT DAMAGE TO THE V AL VE.

WARNING DISCONNECT FREEZER FROM ELECTRICAL SOURCE OF SUPPL Y BEFORE SERVICING.

1. Assuming the left side, right side and back panels are removed, perform the following procedures for removing the TXV.

2. Remove the bulb from the suction line exiting from the evaporator.

4. The proper gauge reading should be approximately 28 PSIG at 75°F. (21.1°C) Ambient temperature at the end of pull down. If the readings are not within these parameters continue with the following steps:

NOTE

Before performing the following procedures be absolutely certain it is necessary to adjust the TXV and the freezer is full of cold mix.

5. Remove the cap on the TXV and using a service wrench, turn the valve stem 1/4 (90°) turn counter clockwise for more cooling or clockwise for less cooling. Figure 16.

3. Recover refrigerant charge and leave a port open to prevent pressure buildup during TXV removal.

4. Remove any insulation from the TXV and the immediate surrounding lines.

5. Remove or push back any foam insulation from surrounding lines.

6. Apply a heat sink (wet cloth) to the valve dome. Figure 17.

7. Unsweat the suction line and liquid line from the TXV and remove the TXV with heat sink.

Figure 16. TXV

6. Should the readings not reach 28 PSIG repeat step #7 until the correct reading is obtained.

Figure 17. Heat Sink

C. TXV Replacement

To replace the TXV perform the following procedures:

CAUTION WHEN REPLACING THE TXV A HEAT SINK (WET CLOTH) MUST BE USED TO PREVENT DAMAGE TO THE V AL VE.

1. Position the TXV with the heat sink so the liquid and suction line correspond with the proper valve ports. Figure 17.

2. With an open port braze the liquid line and suction line to the TXV using the appropriate brazing material.

3. Remove the heat sink from the TXV.

10.Triple evacuate the system. Evacuate twice to 1500 microns of mercury, break in the vacuum each time with dry nitrogen. Then evacuate to 500 microns of mercury.

11.Recharge the system to nameplate specifications and leak test.

5.5 HOPPER

A parallel refrigeration circuit feeds the hopper. A capillary tube is used to meter the refrigerant to the hopper. An E.P.R. valve (Evaporator Pressure Regulating) is used to control the refrigerant at the outlet. The E.P.R. controls the hopper pressure so, during heavy dispensing periods, hopper temperatures will not drop and freeze the mix in the hopper. The adjustable E.P.R. valve is preset at the factory. If the hopper temperature is too cold or too warm, an E.P.R. valve adjustment may be necessary.

4. Replace foam insulation to the surrounding lines.

5. Replace any insulation to the TXV and immediate surrounding areas.

6. Install bulb on suction line exiting the evaporator.

NOTE

The TXV bulb should always be mounted on the top of the horizontal line with the capillary end facing the flow of refrigerant. Good contact between the bulb and suction line is necessary for proper operation of the valve. The bulb must also be well insulated.

7. Purge and evacuate the system.

8. Break the vacuum to 0 PSIG with dry nitrogen, then open an access port.

9. Remove the dryer by unsweating the refrigeration lines then with an open port sweat in the replacement dryer. Make certain the arrow points in the direction of flow. Figure 18.

A. E.P.R. Valve Adjustment

To adjust the E.P.R. valve, refer to the following procedures:

1. Remove the phillips head screws from the bottom of the right side panel and remove the side panel by sliding out and down.

2. Remove the cap from the E.P.R. access port. Figure 19.

Figure 18. Drier

Figure 19. EPR and Access Port

3. Install a 0-100 P.S.I.G. gauge onto the E.P.R. access port.

4. Start the refrigeration cycle and read the pressure.

NOTE

The ideal E.P .R. valve setting (69-71 PSIG) will not allow mix to freeze to the walls of the hopper.

5. If the pressure gauge reading does not fall between 69-71 PSIG parameters, proceed with the following steps:

6. Loosen the lock nut on the E.P .R. valve and using a small screwdriver , turn the valve stem 1/4 (90°) turn counter clockwise for more cool ing or clockwise for less cooling.Figure 20.

Figure 20. EPR Valve Adjustment

7. Allow the system to level out for 3 - 5 minutes before taking another pressure reading.

2. Recover refrigerant charge and leave the port open to prevent pressure build-up during E.P .R. valve removal.

3. Remove foam rubber insulation from the surrounding lines.

4. Apply a heat sink (wet cloth) to the E.P.R. valve. Figure 21.

8. Should the reading still not fall between 69-71 PSIG, repeat steps 6 and 7 until the correct reading is obtained.

9. Once the 69-71 PSIG reading is obtained, tighten the locknut snugly , remove the pressure gauge and replace the E.P .R. access valve cap.

10.Replace the side panel.

B. E.P.R. Removal

CAUTION IF THE E.P.R. VALVE IS REPLACED THE HEA T SINK (WET CLOTH) MUST BE USED TO PREVENT DAMAGE TO THE VA L VE.

1. Assuming the right side and back panelsare removed, perform the following procedures for removing the E.P .R. valve.

W ARNING DISCONNECT THE FREEZER FROM ELECTRICAL SUPPL Y SOURCE BEFORE SERVICING.

Figure 21. EPR Heat Sink

5. Unsweat the hopper evaporator line and the line leading to the low side of the main system from the E.P.R. valve.

6. Remove the E.P .R. valve with the heat sink.

C. E.P.R. Replacement

CAUTION IF THE E.P.R. VALVE IS REPLACED THE HEAT SINK (WET CLOTH) MUST BE USED TO PREVENT DAMAGE TO THE V AL VE.

1. Position the E.P .R. valve with the heat sink, so the hopper evaporator outlet line and the line leading to the low side of the main system correspond with the proper ports.

2. With an open port braze the lines to the E.P .R. valve using the appropriate brazing material.

3. Remove the heat sink from the E.P .R. valve.

4. Replace any foam insulation to the surrounding lines.

5. Purge and evacuate the system.

6. Break the vacuum to 0 PSIG with dry nitrogen, then open an access port.

7. Remove the dryer by unsweating the refrigeration lines then with an open port sweat in the replacement dryer. Make certain the arrow points in the direction of flow. Figure 22.

Figure 22. Filter Drier

Figure 23. Drier Cap. Tube Assembly

NOTE

Before unsweating the capillary tube at the hopper inlet it will be necessary to remove the foam insulation from the capillary tube at that connection.

4. Remove the capillary tube dryer assembly.

B. Capillary Tube Replacement

8. Triple evacuate the system, evacuate twice to 1500 microns of mercury, break in the vacuum each time with dry nitrogen, then evacuate to 500 microns of mercury.

9. Recharge the system to the nameplate specifications and leak test.

5.6 CAPILLARY TUBE

Capillary tube replacement may be necessary if the correct hopper cooling cannot be obtained.

A. Capillary Tube Removal

W ARNING DISCONNECT FREEZER FROM ELECTRICAL SUPPL Y SOURCE BEFORE SERVICING.

1. Remove the retaining screws from the right side panel and pull the side panel out and down.

2. Recover refrigerant charge and leave a port open to prevent pressure build-up during capillary tube dryer assembly removal.

3. Unsweat capillary tube dryer assembly at the dryer inlet and at the hopper inlet located at the side of the hopper. Figure 23.

1. Position the capillary tube dryer assembly so the large diameter tube is in position to be brazed first using the appropriate brazing material.

2. Position the smaller diameter tube at the side of the hopper and braze the tube to the hopper inlet using the appropriate brazing material.

3. Replace the foam insulation to the hopper inlet connections.

4. Purge and evacuate the system.

5. Break the vacuum to 0 PSIG with dry nitrogen, then open an access port.

6. Remove the dryer by unsweating the refrigeration lines then with an open port sweat in the replacement dryer. Make sure the arrow points in the direction of flow.

7. Triple evacuate the system. Evacuate twice to 1500 microns of mercury, break in the vacuum each time with dry nitrogen. Then evacuate to 500 microns of mercury.

8. Recharge the system to nameplate specifications and leak test.

SECTION 6

ELECTRICAL

6.1 ELECTRICAL

The control system operates from drive motor torque. When the product in the barrel freezes it puts a greater load on the drive motor. As the resistance builds up the drive motor body begins to rotate in the opposite direction of the motor shaft overcoming spring tension. When the motor has rotated far enough it contacts a microswitch shutting off the compressor. After time has passed or some product has been drawn the resistance in the barrel decreases and the spring pulls the motor back. The micro switch then closes and the compressor starts. There is a 10 second time delay on the compressor start and stop. The drive motor runs continuously .

6.2 FRONT ELECTRICAL BOX

The front electrical box contains the CLEAN-OFF-SERVE switch, pump OFF/ON switch (SO318 only), safety switch and mix low light. The box also contains the drive contactor, 24 volt transformer, liquid level control, ON/OFF time delay timer and auto fill time delay relay (SO318 only). Figure 24.

ÉÉ

ÊÊ

Figure 25. Switch Removal

5. Replace the electrical panel and secure with the four retaining screws.

B. Indicator

ÉÉ

Figure 24. Electrical Panel

To replace electrical components perform the following procedures:

A. Switches

1. Remove the decorative panel by loosening the two screws at the bottom of the panel, then pull out and down.

2. Identify and disconnect the wires from the indicator.

3. Squeeze the four plastic retainers together and push out through the hole. Figure 26.

4. Push the replacement through the hole and reconnect the wires.

ËË

ÌÌ

ËË

2. Identify and disconnect the wires from the switch.

3. Remove the retaining nut and push out through the hole. Figure 25.

4. Push the replacement switch through the hole install and tighten the retaining nut, then reconnect the wires.

ÊÊ

Figure 26. Light Bulb Replacement

5. Replace the electrical panel and secure the two retaining screws.

ÉÉ

C. Safety Switch

5. Reconnect the four wires.

1. Remove the two retaining screws from the switch and lift out. Figure 27.

Figure 27. Safety Switch

2. Remove the two wires from the switch.

3. Connect the two wires to the replacement switch.

4. Locate and secure the replacement switch with the two retaining screws.

D. Liquid Level Control (Low Mix Light)

1. Identify and remove the wires. Figure 28.

2. Remove the four retaining screws.

F. Drive Contactor

1. Identify and remove the wires.

2. Remove the two retaining screws and remove the contactor.

3. Locate and secure the replacement contactor with the two retaining screws.

4. Reconnect the wires.

G. Compressor ON/OFF Time Delay Relay

1. Identify and remove the wires.

2. Remove the retaining screw and remove the relay.

3. Locate and secure the replacement relay with the retaining screw.

4. Reconnect the two wires.

5. Adjust on and off times to 10 seconds.

WARNING ALL REP AIRS MUST BE COMPLETED AND ALL PANELS REPLACED BEFORE CONNECTING THE FREEZER TO THE ELECTRICAL POWER. THE REMAINING ELECTRICAL COMPONENTS CAN BE REPLACED BY PERFORMING THE FOLLOWING PROCEDURES:

Figure 28. Liquid Level Control

3. Remove the failed control.

4. Locate and secure the replacement control. Take care to insure the wires are replaced properly or the control will not work.

E. 24 Volt Transformer

1. Identify and remove the four wires.

2. Remove the two retaining screws, and remove transformer.

H. Pump Time Delay Relay (SO318 only)

1. Release the two retainers by pushing to the side. Figure 29.

Figure 29. Pump Relay

2. Unplug faulty relay.

3. Plug in replacement relay.

4. Push the two retainers onto the relay.

I. Torque Switch

3. Terminate the wires on the replacement transformer per the wiring diagram.

4. Locate and secure the replacement transformer with the two retaining screws.

1. Remove the retaining screws from the right side panel and slide out and down.

2. Identify and remove the wires and dummy terminal from the switch.

3. Remove the two retaining screws holding the switch to the bracket. Fig. 30.

Figure 30. Torque Switch

4. Locate the replacement switch onto the bracket and secure.

5. Connect the two wires and dummy terminal.

6.3 COMPRESSOR ELECTRICAL BOX

Remove the retaining screws from the right side panel and pull the side panel out and down. Remove two screws holding the electrical box cover and remove cover.

A. Compressor Contactor

1. Identify and remove the wires. Fig. 31.

2. Remove the retaining screw and remove the relay.

3. Locate and secure the replacement relay with the two retaining screws.

4. Reconnect the wires.

C. Start and Run Capacitors

1. Identify and remove the wires.

2. Remove retaining bracket.

3. Install replacement capacitors and secure with bracket.

4. Reconnect the wires.

6.4 MAJOR COMPONENT REPLACEMENT

Prepare for component removal. The procedures in this section must be followed completely in the order in which they appear. To remove any or all of the major components of the freezer, the following steps must be performed first.

Figure 31. Compressor Contactor

2. Remove the two retaining screws and remove the contactor.

3. Locate and secure the replacement contactor with the two retaining screws.

4. Reconnect the wires.

B. Relay

WARNING DISCONNECT FREEZER FROM ELECTRICAL SOURCE BEFORE SERVICING.

Remove the retaining screws from the side panels and back panel, then remove panels.

A. Condenser Fan Motor Replacement

1. Identify the wires and disconnect. Fig. 32.

1. Identify and remove the wires.

Figure 32. Fan Motor

2. Cut the necessary tie straps.

3. Remove the four retaining nuts and washers.

4. Remove the assembly from the freezer, and remove the fan blade and fan bracket.

NOTE

Take a measurement of the fan blade position on the shaft on the failed motor and position it in the same place on the replacement motor shaft and secure. Install the fan bracket onto the replacement fan motor and secure.

5. Install the replacement condenser, and position the condenser and shroud to align the holes. Then secure with the 3/16" blind rivets or 3/16" screws, nuts, and washers.

6. Braze the two refrigerant lines to the condenser with an open access port to prevent pressure build up.

7. Purge and evacuate the system.

8. Break the vacuum to 0 PSIG with dry nitrogen then open an access port.

5. Locate the fan assembly into the freezer and secure with the four retaining nuts and washers.

6. Properly terminate and reconnect all wires and secure the wires with plastic tie straps.

B. Condenser Replacement

1. Recover the refrigerant charge and leave a port open to prevent pressure build-up during condenser replacement.

2. Unsweat the two refrigerant lines. Then cover exposed refrigerant lines to protect them from debris while preparing the condenser for removal.

3. To remove the condenser drill out the blind rivets holding the condenser assembly to the frame. Figure 33. Rivets can be accessed by removing the lower front sheet metal . In addition to the sheet metal retaining screws there are two acorn nuts under the drip tray.

9. Remove the dryer by unsweating the refrigeration lines then with an open port sweat in the replacement dryer. Make certain the arrow points in the direction of flow.

10.Triple evacuate the system. Evacuate twice to 1500 microns of mercury, break in the vacuum each time with dry nitrogen. Then evacuate to 500 microns of mercury.

11.Recharge the system to nameplate specifications and leak test.

C. Compressor Replacement

1. Remove the compressor terminal cover by inserting a screwdriver between the terminal cover and retaining frame, and pry out side, then hold with your hand while prying the other side, then remove cover.

2. ldentify and remove the three wires. Figure 34.

Figure 33. Condenser

NOTE

When replacing the front sheet metal re-seal the seams with R.T.V.

4. Remove the condenser.

Figure 34. Electrical Wires

3. Remove the four nuts, washers, and bolts holding the compressor to the frame. Figure 35.

Figure 35. Compressor

12.Remove the cap plugs from the replacement compressor and with an open port braze the suction and discharge lines to the compressor.

13.Connect the black wire to the overload and the white wire to the relay. Then install the cover and retaining clip.

14.Purge and evacuate the system.

15.Break the vacuum to 0 PSIG with dry nitrogen, and open an access port.

16.Remove the dryer by unsweating the refrigeration lines and then with an open port sweat in the replacement dryer. Make certain the arrow points in the direction of the flow.

4. Recover the refrigerant charge and leave a port open to prevent pressure build-up during compressor replacement.

5. Remove and/or protect insulation that may be contacted by flame or extreme heat, then unsweat the discharge and suction line.

6. Remove the compressor through the right side of the freezer.

7. Remove the four rubber compressor mounts from the failed compressor.

NOTE

Rubber mounts are not always furnished with replacement compressors.

8. Check the compressor for a burn out condition using an acid test kit. If acid is found, clean out the system per the compressor manufacturers instructions.

9. Plug all open ports of the failed compressor.

17.Triple evacuate the system. Evacuate twice to 1500 microns of mercury, break in the vacuum each time with dry nitrogen. Then evacuate to 500 microns of mercury.

18.Recharge the system to nameplate specifications.

19.Leak test and replace insulation.

D. Drive Motor Replacement

1. Remove the cover plate then identify and remove the four wires.

2. Disconnect the ground wire.

3. Disconnect the torque spring by removing the nut on the motor bracket and sliding off. Figure 36.

NOTE

A compressor returned to the company with any open ports will void the warranty. Always plug any open ports on a compressor that has been removed.

10.Install the four rubber mounts on the replacement compressor.

11.Install the replacement compressor into the freezer and secure with the four bolts, washers and nuts.

Figure 36. Torque Spring

4. Remove the two cap screws from the torque switch bracket and move the bracket to the side. Figure 37.

Figure 37. Torque Switch Bracket

14.Locate torque switch bracket and secure with the two screws.

15.Connect the electrical wires. Do not overlook the ground wire, it must be connected.

If the belt tensioner needs adjustment perform the following procedures:

a. With idler loosely snug against mounting bracket,

rotate idler until belt is contacted.

b. With a wrench on large idler nut, rotate idler into

belt until indicator mark (single mark on idler half against mounting bracket) aligns with first mark closest to indicator mark (3 - 4.5 lbs. of tension).

5. Pull back belt tensioner and remove belt. Figure 38.

Figure 38. Belt Tensioner

6. Remove the four retaining bolts, nuts and washers.

7. Slide the motor out through the back.

c. Tighten cap screw to lock idler into position.

E. Bearing Assembly Replacement

1. Remove the agitator assembly from the barrel.

2. Pull back the belt tensioner and remove the belt.

3. Measure the position of the pulley hub, then remove by removing the three cap bolts and turning two of the bolts in the threaded holes to separate the hub from the pulley.

4. Remove the four retaining bolts and washers, then remove the bearing and pulley assembly through the back of the freezer. Figure 39.

8. Measure the position of the pulley before removing.

9. Remove the pulley and bracket, then install on the replacement motor in the same position.

10.Locate the replacement motor in the freezer with the rubber pads in place over the mounting holes.

11.Secure the motor with the four bolts, nuts, and washers.

12.Pull back the belt tensioner and install belt. Check for proper alignment.

13.lnstall torque spring onto bracket and replace nut.

Figure 39. Bearing Assembly

5. Install the bearing assembly on the barrel and secure with the four retaining bolts and washers. Pull back the belt tensioner and install the belt. Check for proper alignment.

6. Locate the pulley on the replacement part and securely tighten the three bolts.

F. Axial Fan Replacement

1. Disconnect the two wires.

2. Remove the two 3/16" mounting screws, nuts and washers.

3. Remove right side fan bracket, then remove fan from right side. Figure 39.

4. Locate replacement motor in freezer.

5. Mount right side bracket to frame and motor, then secure left side bracket to motor and tighten all bolts, screws, nuts and washers.

6. Reconnect the two wires.

SECTION 7

TROUBLESHOOTING

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SECTION 8

REPLACEMENT PARTS INFORMATION

8.1 ORDERING PARTS

To assure receipt of the proper replacement parts, supply your dealer or distributor with the following information:

A. MODEL NUMBER of equipment. B. SERIAL NUMBER of model (stamped on nameplate).

DECALS AND TAGS

PART NUMBER DESCRIPTION

324105 DECAL - CAUTION: ELECT. SHOCK 324107 DECAL - CAUTION MOVING P ARTS 324141 DECAL - CAUTION: ROT A TING BLADES 324798 DECAL - CLEAN-OFF-SERVE SWITCH 324208 DECAL - REFRIG. LEAK CHECK 324393 DECAL - ST OEL TING SWIRL LOGO 324509 DECAL - CLEANING (SS & SHAKE) 324566 DECAL - WIRED ACCORDING TO . . . 324686 DECAL - DANGER ST ARTS AUT OMA TICALL Y 324689 DECAL - REAR SEAL ASSEMBLY 324799 DECAL - PUMP ON/OFF 324801 DECAL - MIX LOW 324825 DECAL - HEADER

C. PART NUMBER, PART NAME, AND QUANTITY

NEEDED. Many part names and numbers are listed on drawings included in this manual.

NOTE

Minimum billing is $50.00.

D. WIRING DIAGRAMS reflect changes in effect with

the Serial Number which are also indicated by a suffix.

SECTION 9

REFERENCE DRAWINGS

See Next Page.

3233343536

-SV

284104

-DS

-SV

744142

284104

-SV

SECTION 10

ACCESSORIES

Fill-O-Matic II

The Fill-O-Matic II is a self contained auto-fill system designed to be used with the Model SO318 and DQSO318 Freezer. The pump is built onto the cover of a 10 gallon mix vat. A draw tube extends to the bottom of the container to supply the pump with mix, the mix then passes thru a screen, thru the pump and discharges thru a hose to the freezer. The pump is controlled by a pressure switch. The pump starts at 45 PSI and stops at 60 PSI.

Cleaning

1. Empty mix container completely.

2. Pour 2 gallons of quite warm detergent water into the mix container and pump thru the pump and hoses.

NOTE

Do not allow the pump to run dry for more than a few minutes to prevent damage to the pumps components.

3. Remove the strainer by turning counter clockwise, then thoroughly clean.

4. Apply a film of petro-gel to the male threads and "o" ring before reassembly. Do not over tighten.

Sanitizing

1. Use a sanitizer mixed according to manufacturers 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° water. Allow the sanitizer to contact the surfaces to be sanitized for 5 minutes. Any sanitizer must be used only in accordance with the manufacturers instructions.

2. Pour the sanitizer into the mix container and pump thru the pump and hoses.

3. Make sure all the sanitizer has been pumped out and the container is completely empty, then fill with mix and start the pump pushing out any sanitizer that may be remaining in the hoses. The freezer barrel and hopper can now be filled.

On/Off Switch

115 Volt

15 Amp Plug

Strainer

Fill-o-matic II

474849

Fill-O-Matic III

The Fill-O-Matic III is a gas powered auto-fill system designed to be used with Slush and Cocktail Freezers. The pump is built to hang on the side of a 10 gallon mix vat. The pump can be driven

by either regulated CO2, nitrogen or filtered compressed air. A draw tube extends to the bottom of the container to supply the pump with mix, the mix then passes thru the pump and discharges thru a hose to the freezer. The pump is controlled by pressure in the mix line verses gas pressure to the pump. Set the gas pressure to the pump between 20 to 40 PSIG.

Cleaning

1. Empty mix container completely.

2. Pour 2 gallons of quite warm detergent water into the mix container and pump thru the pump and hoses.

NOTE

Do not allow the pump to run dry for more than a few minutes to prevent damage to the pumps components.

Sanitizing

2. Pour the sanitizer into the mix container and pump thru the pump and hoses.

Mix Outlet

Gas Inlet

Mix Inlet

Gas Outlet

Fill-o-matic III

515253

SECTION 11 ADDENDUM

Dispenser Specifications

Electrical Refrigeration Crated Dimensions Dimensions

208/230/60/1 HFC-404A environmentally- Width: 22" (55.9cm) Width: 17.6"(44.7cm) 20amp circuit & plug friendly refrigerant Depth: 30" (76.2cm) Depth: 26.1"(66cm) 12 running amps 2 HP (14,800 BTUH) high- Height: 66" (167.7cm) Height: 61.2"(155cm) w/casters 1/2 HP Drive Motor efficiency compressor Weight: 400lbs.(182kg) Weight: 350lbs.(159kg)

Air cooled or Water cooled.

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Stoelting SO318 Operators Manual

Specifications and Main Features

Frequently Asked Questions

User Manual