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3.1  SAFETY PRECAUTIONS

Do not attempt to operate the U3-02A pump until the safety
precautions and operating instructions in the manual are
read completely and thoroughly understood.

Take notice of all warning labels on the U3-02A pump. The
labels have been put there to help in maintaining a safe
working environment. The labels are designed to with-
stand washing and cleaning. All labels must remain
legible for the life of the mix pump. Warning labels should
be checked periodically to be sure they have not been
removed, painted over, rubbed off, and can be recog-
nized as warning labels.

If replacement labels are needed, indicate the part num-
ber, type of label, location of label, and quantity required.
Mail your name and address to:

STOELTING, LLC
ATTENTION:  Customer Service
502 Hwy 67
Kiel, Wisconsin  53042

Labels will be furnished and mailed at no charge.

SAFE OPERATION IS NO ACCIDENT; Observe these
rules:

A. Know the U3-02A pump - read and understand the

Owner’s Manual.

B. Wear proper clothing - avoid loose fitting garments,

and remove watches, rings or jewelry which could
cause a serious accident.

C. Maintain a clean work area - avoid tripping or

slipping by cleaning up the area and keeping it
clean.

D. 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.

E. Turn all switches to OFF prior to making any adjust-

ments.

F. Do not attempt to repair or perform maintenance on

the mix pump until the main electrical power has
been disconnected.

G. Do not operate the mix pump if unusual or

excessive noise or vibration occurs.

3.2  PUMP MOTOR SWITCH

The PUMP MOTOR switch (Fig. 4) is located on the mix
pump assembly.  When the pump motor switch is placed
in the ON position, the mix pump motor will be actuated
to pump mix into the freezer cylinder.  When the set
pressure is reached, the mix pump will shut off automati-
cally.  When the pump motor switch is placed in the OFF
position, the mix pump will be inoperative.

SECTION 3

OPERATION INSTRUCTIONS

Figure 4

Pump Motor Switch

NOTE

The mix pump motor is equipped with an internal
overload that will “trip”, disabling the pump when the
motor is overloaded. Consult the trouble shooting
section for corrective information.The internal over-
load will automatically reset after cooling. If the con-
dition continues, contact a qualified service person.

3.3  OPERATION OF U3 MIX PUMP

This section describes the operation of the U3 mix pump.

CAUTION

Risk of Product Damage

Mix pump hose must be repositioned every 1 -2
weeks. Failure to comply will result in reduced mix
pump liquid capacity, dispense stoppage, popping,
and possible mix pump hose leakage. Hose leak-
age may damage the pump roller assembly and void
the factory warranty.

A. Refer to freezer owners manual for the operation of

the freezer.

B. 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
this hose is the suction or pickup.  The right side of
the hose is the discharge.  Mix is drawn up the
suction side of the hose and transferred thru the
discharge side to the freezer (Fig. 5).

C. Air Operation:  The air compressor operates concur-

rently with the peristaltic mix pump.  Air enters thru
an intake check valve on the piston downstroke.  The
air is discharged thru an output check valve, and
second check valve on the piston upstroke.  The air
and mix join at the tee and then travel to the freezer.

Содержание U3-02A

Страница 1: ...U3 02A Mix Pump Manual No 513606 Rev 0 April 2004 Owner s Service Manual ...

Страница 2: ......

Страница 3: ... equip same on mix pump built prior to date of change DONOTATTEMPTtooperatethemixpumpuntilinstructionsandsafetyprecautionsinthemanualarereadcompletely and thoroughly understood The mix pump should be operated only by qualified personnel If problems develop or questionsariseinconnectionwiththeinstallation operation orservicingofthemixpump contactyourlocaldistributor or the company at the following ...

Страница 4: ...ghlight specific safety information the following safety definitions 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 pr...

Страница 5: ...NSTRUCTIONS 7 3 1 Safety Precautions 7 3 2 Pump Motor Switch 7 3 3 Operation Of U3 Mix Pump 7 3 4 Cleaning 8 3 5 Disassembly and Inspection of Removable Parts 8 3 6 Sanitizing and Startup 9 3 7 Cleaning Mix Lines 10 SECTION 4 MAINTENANCE INSTRUCTIONS 11 4 1 Overrun Adjustment 11 4 2 Preventative Maintenance 11 SECTION 5 TROUBLESHOOTING 13 SECTION 6 REPLACEMENT PARTS INFORMATION 15 6 1 How to Order...

Страница 6: ...Pickup Hose 4 C Pickup Hose 4 3 Mix Pump Installation 5 D 3 wayTee Connection 5 4 Pump Motor Switch 7 5 Mix Pump Operation 8 6 Removing Parts 8 7 Overrun Adjustment 11 8 Reposition Mix Pump Hose 12 9 Pump Roller Assembly 12 10 Pump and Decal Assembly 15 Exploded Parts Illustrations 17 21 Wiring Diagram 22 ...

Страница 7: ... to the freezing cylinder of your freezer quickly and conveniently Second the U3 02A Pump precisely injects a preset amount of air into the mix maintainingoverruntoassuremaximumprofitability Third itpressurizesthefreezingcylinder forcingfrozenproduct through the spigot at the rapid dispense rates needed by high volume locations SECTION 1 INTRODUCTION 1 2SPECIFICATIONS WEIGHT 24 lbs 10 89 kg DIMENS...

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Страница 9: ...2 B The product at the mix pump and in transfer lines must be maintained below 41 F 5 C 2 3 INSTALLATION A Follow the steps below to install the mix pump in an upright position on the wall using optional pump mounting kit Allow clearance for a mix container under pump See Figure 2 1 Mount by locating four 4 hole centers on cooler wall using mounting bracket as template WARNING Risk of Personal Inj...

Страница 10: ...hose to feed itself thru the pump until 6 remains on the entering side 5 Turn pump off 6 Connect mix pump hose to pickup hose adapter using small hose clamp See Figure B CAUTION Risk of Product Damage Avoid twistingmixpumphosewhilefeedingintocover Twisting the hose may cause the hose to rupture Figure B Figure C 7 Turn pump on 8 Gently pull on the discharge hose to help remaining 6 of mix pump hos...

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Страница 13: ...h Fig 4 is located on the mix pump assembly When the pump motor switch is placed in the ON position the mix pump motor will be actuated to pump mix into the freezer cylinder When the set pressure is reached the mix pump will shut off automati cally When the pump motor switch is placed in the OFF position the mix pump will be inoperative SECTION 3 OPERATION INSTRUCTIONS Figure 4 Pump Motor Switch N...

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Страница 15: ...er with mix Sanitizing the night beforeisnoteffective Tosanitize refertolocalsanitaryregulationsforapplicable codesandrecommendeddisinfectingproductsandproce dures The frequency of cleaning must comply with local health regulations Use a solution containing 100 PPM of free available chlorine Use Stera Sheen Green Label Sanitizer and Cleaner or others in accordance with HealthInspectionRequirements...

Страница 16: ...g the pump and freezer as an assembly Once every 2 weeks if required perform the following steps A Mix 2 gallons 7 5 liters of milkstone remove solution according to the directions on the container and pump through the mix line B Cut a piece of sponge slightly larger than the inside diameter of the mix line Place the sponge inside the mix line and force through with tap water pressure A garden hos...

Страница 17: ...rm down ward travel is limited by a stationery cam On the face of the cam there is an overrun setting indicator plate numbered 3 thru 8 and an adjustment knob Fig 7 D The overrun setting is indicated by a pointed pin E To adjust overrun loosen the allenhead screw located within the center of the adjustment knob with the 5 32 allen wrench provided Rotate the adjustment knob counterclockwise to a hi...

Страница 18: ...12 Roller Cover Clamp Inlet Side Discharge Side Cover Clamp Discharge Inlet Roller ...

Страница 19: ...SSURE IN THIS CASE TURN THE PUMP OFF DRAW 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 purge the mix bag of air to the extent possible Out of Mix Replenish mix supply MIx pump hose kinked inside black cover clamp Follow mix pump hose jammed repair See 1 above Hoses assembled inco...

Страница 20: ... R t u o h c l e b o t r i a s s e c x e w o l l a d n a y l l u f t o g i p s n e p O E V O B A 4 2 E E S O S L A E T O N P M U P M O R F E G A K A E L X I M 8 n a e l c d n a e l b m e s s a s i d y l e t a i d e m m i s t i s o p e d x i m d e i r d m o r f e g a m a d p m u p x i m t n e v e r p o T N O I T U A C p m u p d e d e e c x e s i e f i l e c i v r e s e s o h p m u p x i M r e w o p...

Страница 21: ...ibutor or the company with the followinginformation A Model number of equipment B Serial number of Model Stamped on nameplate C Part number part name and quantity needed Many part names and numbers are listed in this manual NOTE Minimum Billing is 50 00 Net 6 2 PARTS LIST AND REFERENCE DRAWINGS The following lists and drawings will aid the user when ordering parts or servicing the mix pump ...

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Страница 29: ...oelting 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 Extensions The warranty period for deinstall...

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