Stoelting U421 series Operator'S Manual Download Page 21 | Manualshive

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513713 REV.0

U421-I2A & U431-I2A OPERATOR’S MANUAL

21

Section 2: Operation

MAINTENANCE

PA

R

TS

TROUBLESHOO

TING

OPERA

TION

INTRODUCTION

J. Pump Hose Routing

3/8" Clear Tube

Collection Manifold

Black Cover Clamp

Mix Sensor

Manifold Cap

Tan Pump Hose

Check Valve Block

1/2" Clear Tube

Coiled Hose

Bag Adapter

Bag Adapter Cap

3/8" Clear Tube

Collection Manifold

Black Cover Clamp

Mix Sensor

Manifold Cap

Tan Pump Hose

Check Valve Block

1/2" Clear Tube

Coiled Hose

Bag Adapter

Bag Adapter Cap

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Summary of Contents for U421 series

Page 1: ...Model U421 U431 Operator s Manual 513713 Rev 0...

Page 2: ...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 safet...

Page 3: ...ly Procedures Morning MAINTENANCE A Auger Shaft Front Door Parts B Cab Tubing PARTS A Troubleshooting Flow Charts TROUBLESHOOTING A Empty the Freezing Cylinders Start here if cleaning a machine with m...

Page 4: ...abinet IntelliTec2 Touchpad Front Door Spigot Handle The U421 has two types of spigot handles swing gate and pull down The swing gate style is opened by moving the handle to the left The pull down sty...

Page 5: ...ctrical 1 PH 3 PH 1 PH 3 PH 1 PH 3 PH circuit ampacity per barrel 32A 20A 36A Left 31A Right 20A 32A 20A overcurrent protection device per barrel 50A 30A 50A Left 45A Right 30A 50A 30A The machine req...

Page 6: ...ing Cylinder Cabinet Front Door IntelliTec2 Touchpad Swing Gate Style Handles The U431 has two types of spigot handles swing gate and pull down The swing gate style is opened by moving the handle to t...

Page 7: ...1 PH 3 PH circuit ampacity per barrel 32A 20A 36A Left 31A Right 20A 32A 20A overcurrent protection device per barrel 50A 30A 50A Left 45A Right 30A 50A 30A The machine requires one dedicated electri...

Page 8: ...ode requirements whichever is sooner NOTE Wire trays are located at the upper left and right corners of the cab to store bag caps NOTE Set up cab and hoses for rinse procedure 1 Removethebagsfromtheca...

Page 9: ...uttons to stop the augers A 7 If the Clean Time Exceeded warning is displayed on the IntelliTec2 turn the freezing cylinder on and o again to clear the warning Press the Clean button to resume cleanin...

Page 10: ...5 Wipe any remaining lubricant o the hex end of the auger and remove the rear seal assembly and o ring Wipe any remaining lubricant o the o ring and auger Remove the rear seal adapter from the rear s...

Page 11: ...and let air dry completely before assembling in machine C 2 D Cleaning the Machine Using adetergent solution and the large barrel brush provided clean the freezing cylinders by dipping the brush in th...

Page 12: ...use Use lubricants only in accordance with the manufacturer s instructions NOTE Install the rear seal o rings onto the augers Lubricate the outside of the o rings with a generous amount of sanitary l...

Page 13: ...onto the rear of the auger and insert it part way into the freezing cylinder E 5 Install the remaining plastic flights push the auger into the freezing cylinderandrotateslowly until the auger engages...

Page 14: ...in film of Total Blend lubricant to the o ring E 9 Inserttheairbleedvalveinto the back of the front door Install the compression spring onto the air bleed valve then screw the knob on finger tight E 1...

Page 15: ...recommended sanitizing products and procedures The frequency of sanitizing must comply with local health regulations Mix sanitizer in quantities of no less than 2 gallons of 90 F to 110 F 32 C to 43 C...

Page 16: ...zing cylinder is first pressurized with sanitizing solution 1 Check for leaks at the front door seals 2 Check the drain tray located in the side panel for leaks coming from the rear of the rear auger...

Page 17: ...ight button to turn them o G Freeze Down Place a bag of mix into one of the bottom drawer sections G 1 Make sure the bag opening is facing up and towards the back of the drawer Align the bag corners w...

Page 18: ...Open the spigot to dispense product G 8 Repeat for each of the drawer sections ThenpressthePumpbuttons to turn the pumps on G 5 Insert the bag adapter intothecutoutattheback of the drawers Make sure t...

Page 19: ...TION H Brushes for Cleaning 208135 208465 208380 208485 208467 208387 Part Number Where Used 208135 Freezing cylinder 208465 Front door check valve block pump hose 208380 Front door pump hose mix sens...

Page 20: ...EV 0 Section 2 Operation MAINTENANCE PARTS TROUBLESHOOTING OPERATION INTRODUCTION I Lubrication Points O Ring Hex End of Auger O Ring ONLY Inside Metal Adapter Inside Outside of Bushing All O Rings U4...

Page 21: ...se Routing 3 8 Clear Tube Collection Manifold Black Cover Clamp Mix Sensor Manifold Cap Tan Pump Hose Check Valve Block 1 2 Clear Tube Coiled Hose Bag Adapter Bag Adapter Cap 3 8 Clear Tube Collection...

Page 22: ...nds A 3 Turn the pump on and pull the hose out of the black cover Then turn the pump o A 4 Rotatethepumprollerssooneofthe rollers is at the 6 00 position With a brush clean the roller assemblywithdete...

Page 23: ...natural curve of the tan hose towards the outside of the cover to preventthehosefromloopingaround twice A 7 Asthehosefeedsthroughthecover orientthesensor at an angle so the sensor wire does not interf...

Page 24: ...leaned every 7 days 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 o If they are n...

Page 25: ...he pickup end is on the left side Then turn the pump o Loosentheclamponthetanhose and disconnect the hose at the low mix sensor B 5 Remove the hose assemblies from the cab Loosen all clamps and discon...

Page 26: ...rve of the tan hose towards the outside of the cover to prevent the hose from looping around twice NOTE Connect the hose from the bottom of the manifold to the low mix sensor B 19 Turn the pump on and...

Page 27: ...thetopofthecabinet Donottightentheclamp until the check valve block is installed B 22 Sanitize assembled machine as per instructions outlined in Section 2 F B 26 Install the check valve into the block...

Page 28: ...anges Press the SEL button to toggle between freezing cylinders C 3 From the Current Status screen press theleftarrowbuttonto access the password screen Press the right arrow then the SEL button C 1 P...

Page 29: ...them air dry D 2 Install the spigot extensions E 2 Check the mix level of the mix bags in the cab Add new mix bags as necessary E 3 Press the Push To Freeze button to start freezing the product When...

Page 30: ...normal operation No Product is Too Firm Decrease the fine consistency Contact your authorized Stoelting distributor for further assistance Is the product still too Soft Yes Continue normal operation...

Page 31: ...r Code E2 High Torque Error Code E3 Run Time Water Cooled Machines Error Code E9 High Pressure Cutout Air Cooled Machines Error Code E9 High Pressure Cutout Water Cooled Machines Go to the flow chart...

Page 32: ...thaw then disassemble and check condition of the parts Replace as necessary Error Code E2 High Torque Contact your authorized Stoelting distributor for further assistance Continue normal operation Con...

Page 33: ...arance around the machine Is the problem fixed No Yes Yes No Contact your authorized Stoelting distributor for further assistance Does the error occur after the first freezing cycle Disassemble machin...

Page 34: ...No No No Yes Yes Repair or replace the lines Is the problem fixed No No Yes Yes No Does the error occur after the first freezing cycle Disassemble machine and reassemble following the steps in the op...

Page 35: ...Dog Steamer Contact your authorized Stoelting distributor for further assistance Is there an air flow restriction around the machine Is there an exterior heat source Move anything blocking the louver...

Page 36: ...distributor for further assistance Is the water or glycol system turned off Are the water or glycol lines kinked or damaged Yes Yes Turn the system on Is the problem fixed Continue normal operation N...

Page 37: ...5 Cap Bag Adapter 4 264235 Clamp Metal 1 4 ID Tubing 264241 Clamp Metal 1 2 ID Tubing 624616 5 O Ring Check Valve Block Lower Black 5 Pack 2 624644 5 O Ring Check Valve Block Upper Black 5 Pack 2 6942...

Page 38: ...Black 2 625133 O Ring Front Door Black 2 667868 Seal Rear Auger Orange 2 694200 Spring Air Bleed Valve 2 694255 Spring Auger Flight 12 1151859 Adapter Rear Seal Code 1 2 2183106 Valve Air Bleed 2 2104...

Page 39: ...ear Seal Black 2 625133 O Ring Front Door Black 2 667868 Seal Rear Auger Orange 2 694200 Spring Air Bleed Valve 2 694255 Spring Auger Flight 12 1151859 Adapter Rear Seal Code 1 2 2104552 Support Front...

Page 40: ...40 U421 I2A U431 I2A OPERATOR S MANUAL 513713 REV 0...

Page 41: ...513713 REV 0 U421 I2A U431 I2A OPERATOR S MANUAL 41...

Page 42: ...42 U421 I2A U431 I2A OPERATOR S MANUAL 513713 REV 0...

Page 43: ...Training Checklist 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 S...

Page 44: ......

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