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Owner’s Manual #513669 

12 

O431 I2 Model Machines

J. 

When the product is ready, the display will read 
“SERVE”. Open the spigot to dispense product.

NOTE

If the product consistency needs to be adjusted, use 
the Technician passcode and go to the Basic Set-
tings menu. Adjust the CutOut Consistency higher 
to increase the consistency or lower to decrease 
the consistency. Make adjustments in increments 
of 5 for best results.

K. 

The machine dispenses product at a reasonable 
draw rate. If the machine is overdrawn, the result 
is a soft product or a product that will not dispense 
at all. If this occurs, allow the machine to run for 
approximately 30 seconds before dispensing more 
product. A dispense rate adjustor is located under 
the header panel, to the immediate right of the 
spigot handle. Turning the knob counterclockwise 
will decrease the dispense rate.

L. 

Do not operate the machine when the MIX LOW 
message is displayed. Refi ll the mix container 
immediately.

NOTE

The control has a standby mode for Serve 1 and a 
sleep mode for Serve 1 and Serve 2. After a preset 
number of freezing cycles in Serve 1, the control will 
enter the standby mode (followed by sleep mode) 
and remain there until someone draws product or 
presses the PUSH TO FREEZE button. In Serve 2 
the control directly goes into the Sleep2 mode. In 
the sleep mode, the machine will keep the product 
below 41°F (5°C). Sleep modes do not take the 
place of cleaning and sanitizing. Federal, State, 
and local regulatory agencies determine frequency 
of cleaning and sanitizing.

3.10 MIX 

INFORMATION

Mix can vary considerably from one manufacturer to 
another. Differences in the amount of butterfat content 
and quantity and quality of other ingredients have a 
direct bearing on the fi nished frozen product. A change 
in machine performance that cannot be explained by a 
technical problem may be related to the mix.

Proper product serving temperature varies from one 
manufacturer’s mix to another. Mixes should provide a 
satisfactory product in the 20°F to 24°F range. Diet and 
low-carb mixes typically freeze to proper consistency at 
higher temperatures.

When checking the temperature, stir the thermometer in 
the frozen product to get an accurate reading.

Old mix, or mix that has been stored at too high a tempera-
ture, can result in a fi nished product that is unsatisfactory. 
To retard bacteria growth in dairy based mixes, the best 
storage temperature range is between 33° to 38°F (0.5° 
to 3.3° C).

3.11 

OPERATION OF MIX PUMP

The mix pumps are operated from the buttons on the 
IntelliTec2™ touchpad. When the pump button is pressed 
On, the mix pump motor will start pumping mix into the 
freezing cylinder. When the set pressure is reached, the 
mix pump will shut off automatically.

NOTE

The mix pump motor is equipped with an internal 
overload that will “trip”, disabling the pump when 
the motor is overloaded. Consult the troubleshoot-
ing section for corrective information. The internal 
overload will automatically reset after cooling. If 
the condition continues, contact a qualifi ed service 
person.

A. 

Mix Operation: The peristaltic mix pump contains 
one continuous mix pump hose. When looking at 
the face of the peristaltic mix pump, the left side 
of the hose is the mix intake or pickup. The right 
side of the hose is the mix discharge. Mix is drawn 
up the pickup side of the hose and transferred 
through the discharge side to the machine (Fig. 
3-9).

B. 

Air Operation: The air compressor operates 
whenever the peristaltic mix pump is running. 
Air enters through a check valve on the piston 
downstroke. The air is discharged through a 
second check valve, on the piston upstroke. The 
air and mix join at the tee and then travel to the 
machine.

C. 

The overrun adjustment is preset at the factory. 
If an adjustment becomes necessary, refer to 
Section 4.

Figure 3-9 Mix Pump Hose Routing

Air Line

Mix 

Intake

Mix

Discharge

3-way 

Tee

Air/mix to 

Freezing 

Cylinder

Содержание STOELTING O431 I2

Страница 1: ...Model O431I2 OPERATORS MANUAL Manual No 513669 Rev 0 ...

Страница 2: ......

Страница 3: ...s 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 Stoelting Foodservice Equipment 502 Highway 67 Kiel WI 53042 1600 U S A Main Tel 800 558 5807 Fa...

Страница 4: ...pecific safety information the following safety defini tions are provided to assist the reader The purpose of safety symbols is to attract your at tention to possible dangers The safety symbols and their explanations deserve your careful attention and understanding The safety warnings do not by themselves eliminate any danger The instructions or warnings they give are not substitutes for proper ac...

Страница 5: ... C Mix Low Level Indicator Adjustment 6 3 Initial Set Up and Operation 3 1 Operator s Safety Precautions 7 3 2 Operating Controls and Indicators 7 3 3 Disassembly of Machine Parts 8 A Disassembly of Front Door 8 B Remove Auger 9 3 4 Cleaning Disassembled Parts 9 3 5 Sanitizing Machine Parts 9 3 6 Cleaning the Machine 9 3 7 Assembling the Machine 10 3 8 Sanitizing 10 3 9 Freeze Down and Operation 1...

Страница 6: ...ion Adjustment 17 4 6 Condenser Cleaning Air Cooled Machines 17 4 7 Preventative Maintenance 17 4 8 Extended Storage 17 5 Troubleshooting 5 1 Error Codes 19 5 2 Troubleshooting Error Codes 19 5 3 Troubleshooting Machine 21 5 4 Troubleshooting Mix Pump 22 6 Replacement Parts 6 1 Brushes Decals and Lubrication 31 6 2 Spigot Extension 31 6 3 Auger Shaft and Faceplate Parts 32 6 4 Cab Tubing Assembly ...

Страница 7: ...t The machine is designed to operate with almost any type of commercial soft serve or non dairy mix available including ice milk ice cream yogurt and frozen dietary desserts This manual is designed to assist qualified service per sonnel and operators in the installation operation and maintenance of the Stoelting O431 I2 pressure machine SECTION 1 DESCRIPTION AND SPECIFICATIONS Figure 1 1 Model O43...

Страница 8: ...g Electrical 1 Phase 208 240 VAC 60Hz 3 Phase 208 240 VAC 60Hz International Option 1 Phase 220 240 VAC 50Hz or 3 Phase 380 415 VAC 50Hz Compressor 15 000 Btu hr Scroll Compressor Drive Motor Two 3 4 hp Air Flow Air cooled units require 3 7 6 cm air space on both sides and back Plumbing Fittings Water cooled units require 1 2 N P T water and drain fittings Hopper Volume Two 5 5 gallons 20 82 liter...

Страница 9: ...e and will void fac tory warranty Installation of the machine involves moving the machine close to its permanent location removing all crating set ting in place assembling parts and cleaning A Uncrate the machine SECTION 2 INSTALLATION INSTRUCTIONS B Install the four casters Turn the threaded end into the machine until no threads are showing To level turnoutcastersnomorethan1 4 maximum then tighte...

Страница 10: ... using a small hose clamp Be careful not to twist the mix hose 7 Turn the pump on 8 Allow the remaining 6 15cm of tubing to feed through pump until the hose adapter prevents further feeding 9 Turn the pump off CAUTION Risk of Product Damage Air Mix Tee must remain below the black cover clamp If the Tee is above the pump mix may drain into the air compressor resulting in pump damage 10 Connect the ...

Страница 11: ...icator relies on proper bag placement 1 Connect3 8 9 5mm IDplasticfoodgradetubing to a bag adapter Secure with hose clamps 2 Slide the hose clip over free end of 3 8 9 5mm ID plastic food grade tubing Attach the free end of the tubing to a manifold adapter Secure with a large hose clamp or equivalent 3 Push the manifold adapter with spring and valve into the left port nearest the manifold outlet o...

Страница 12: ...with a large hose clamp 3 Push the manifold adapter with spring and valve into the left port nearest the manifold outlet of the mix inlet manifold and secure with retaining clip See Figure 2 5 4 If using two mix bags repeat steps 1 to 3 for the middle port 5 Install a manifold plug intoeachemptyinletand secure with a retaining clip 6 Placethemixbag s into the mix container 7 Connectthebagadapter a...

Страница 13: ...l power has been disconnected G Donotoperateunderunsafeoperatingconditions Neveroperatethemachineifunusualorexcessive noise or vibration occurs SECTION 3 INITIAL SET UP AND OPERATION 3 2 OPERATING CONTROLS AND INDICATORS Before operating the machine it is required that the op erator know the function of each operating control Refer to Figure 3 1 for the location of the operating controls on the ma...

Страница 14: ...rvice technicians to navigate through the control readings and settings B SPIGOT SWITCH The spigot switch is mounted to the spigot cam assembly behind the header panel When the spigot is opened to dispense product the spigot switch opens and the Serve Mode begins C DISPENSE RATE ADJUSTOR The dispense rate adjustor is located under the header panel totheimmediaterightofthespigothandles Turning thek...

Страница 15: ...uger parts in clean 90 to 110 F 32 C to 43 C water and wash thoroughly four sink procedure only C Place all parts in 90 to 110 F 32 C to 43 C mild detergent water and wash thoroughly D Rinse all parts with clean 90 to 110 F 32 C to 43 C water E Sanitize all machine parts following procedures outlined below 3 5 SANITIZING MACHINE PARTS A Useasanitizer mixedaccordingtomanufacturer s instructions to ...

Страница 16: ...ntil the auger engages the drive shaft H Applyathinlayerofsanitarylubricanttotheinside and outside of the auger support bushing Install the bushing onto the auger support and install the auger support into the front of the auger Rotate the auger support so that one leg of the support points straight up I Assemble the air bleed valve o ring onto the air bleed valve Position the o ring into the groo...

Страница 17: ...EANbuttontostarttheaugerrotating F Check for leaks when the freezing cylinder is first pressurized with sanitizing solution 1 Check for leaks at the front door seals 2 Check the drain tray located in the front panel for leaks coming from the rear of the rear auger seal 3 Check the inside of the cab unit for leaks at the hose connections G Use a sanitized soft bristle brush dipped in sanitizing sol...

Страница 18: ...lated to the mix Proper product serving temperature varies from one manufacturer s mix to another Mixes should provide a satisfactory product in the 20 F to 24 F range Diet and low carb mixes typically freeze to proper consistency at higher temperatures When checking the temperature stir the thermometer in the frozen product to get an accurate reading Old mix or mix that has been stored at too hig...

Страница 19: ...nnections may be sprayed with Haynes Sanitary Lubricant for ease of removal WARNING Hazardous Moving Parts Revolving pump head can grab mangle and cause serious crushing injury Make sure the display shows the freezing cylinders and pump are off If they are not press the On Off button and Pump button to turn them off CAUTION System Under Pressure Never disconnect hoses from the machine or the pump ...

Страница 20: ...Owner s Manual 513669 14 O431 I2 Model Machines ...

Страница 21: ...h hose is long enough for 3 repositions before replacement is required NOTE The hose timer must be reset each time the hose is repositioned or replaced to keep an accurate record of the hose service time SECTION 4 MAINTENANCE AND ADJUSTMENTS Thissectionisintendedtoprovidemaintenancepersonnel withageneralunderstandingofthemachineadjustments It is recommended that any adjustments in this section be ...

Страница 22: ... 15cm remains on the entering side and turn the pump off L Connect the mix pump hose to the elbow fitting located on the left side of the mix line manifold using a small hose clamp Be careful not to twist the mix hose M Turn the pump on N Allow the remaining 6 15cm of tubing to feed through the pump until the hose adapter prevents further feeding and turn the pump off CAUTION Risk of Product Damag...

Страница 23: ...llowing steps are suggested as a preventative maintenance guide TheUnitedStatesDepartmentofAgricultureandtheFood and Drug Administration require that lubricants used in food zones be certified for this use Use lubricants only in accordance with the manufacturer s instructions A Daily checks Check for any unusual noise or condition and repair immediately B Monthly checks 1 Check drive belts for wea...

Страница 24: ...Owner s Manual 513669 18 O431 I2 Model Machines ...

Страница 25: ...tor for further assistance Error Code 3 Run Time The Run Time Error E3 occurs when the compressor runs continuously for an extended period This error is generally caused by very low mix levels in the mix container or from product breakdown Another common cause results from a restriction preventing mix from entering the freezing cylinder Check the mix in the mix container If the level mix is low ad...

Страница 26: ...ed machine check for proper air clearance around the machine If there is an E9 on a water cooled machine check for proper flow from the water supply or kinks in the hoses If the error persists contact your Authorized Stoelting Distributor for further assistance Error Code 10 Auxiliary Sensor An Auxiliary Temperature Sensor Error E10 occurs if the temperature sensor on the control boardfails Presst...

Страница 27: ...or for service Product does not dispense 1 No mix in hopper 1 Add mix to the hopper 2 Drive motor overload tripped 2 Wait for automatic reset If condition continues call distributor for service 3 Drive belt failure 3 Replace drive belt 4 Freeze up Auger will not turn 4 Turn off cylinder wait for 15 minutes then restart Drive belt slipping or squealing 1 Worn drive belt 1 Replace drive belt 2 Freez...

Страница 28: ...2 3 pints to reduce system pressure to zero Turn pump on Purge remaining air in mix bag and pick up hose Important before connecting the pick up hose to the mix bag remove as much air from the mix bag as possible 1 Out of Mix 1 Replenish mix supply 2 Mix pump hose kinked inside black cover clamp 2 Disconnect pump from power source Remove four cover clamp thumb screws Separate cover clamp halves an...

Страница 29: ... damage from dried mix deposits immediately disassemble and clean pump 1 Mix pump hose service life is exceeded 1 Remove mix pump hose Disconnect pump from power source Remove mix pump cover clamp Clean the rollers a small amount of soapy water Clean mix from pump See Section 4 2 for hose replacement Pump is noisy squeaking Note The action of the air compressor rocking arm creates a repetitive cli...

Страница 30: ...Owner s Manual 513669 24 O431 I2 Model Machines ...

Страница 31: ...k Check 2 324509 Decal Cleaning Instructions 1 324566 Decal Wired According To 1 324584 Decal Adequate Ventilation 3 2 324686 Decal Danger Automatic Start 2 324799 Decal Pump Off On 2 324803 Decal Domed Stoelting Logo Large Header Panel 1 324804 Decal Domed Stoelting Swirl Header Panel 1 324888 Decal Fan Motor Reset 1 324901 Decal Transformer Switch 1 324909 Decal USB Port 1 508048 Lubricant Splin...

Страница 32: ...lack 5 Pack 2 624664 5 O Ring Middle Center Spigot Black 5 Pack 1 624678 5 O Ring Rear Seal Rear Seal Adapter Black 5 Pack 4 625133 O Ring Front Door Red 2 667868 Seal Rear Auger Orange 2 694200 Spring Air Bleed Valve 2 694255 Spring Auger Flight 10 744273 Tray Drip 1 744276 Tray Drain 1 2183083 Auger Shaft 2 2183106 Valve Air Bleed 2 2183110 Door w Pins Air Bleed Valve 1 2187811 Spigot Body Cente...

Страница 33: ... 2 696152 Clip Lock Check Valve 2 756067 Tubing 1 4 ID Clear Air Line 25 Increments Per Inch 13 2 756079 Tubing 3 8 ID Clear Mix Line 25 Increments Per Inch 24 2 756088 Tubing 1 2 ID Clear Mix Line 25 Increments Per Inch 6 2 756204 Tubing 1 4 ID Pump 50 Box Only Per Inch 756204 40 Tubing 1 4 ID Pump Pre Cut 40 Piece 8 762256 Check Valve Mix Outlet 2 1183187 Check Valve Mix In Line Outer 2 2177274 ...

Страница 34: ...Owner s Manual 513669 34 O431 I2 Model Machines ...

Страница 35: ...obligations 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 packa...

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