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3.1  SAFETY PRECAUTIONS

Do not attempt to operate the U3 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 pump. The
labels have been put there to help in maintaining a safe
working environment. The labels are designed to withstand
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 recognized as warning
labels.

If replacement labels are needed, indicate the part number,
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 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 automatically.  When
the pump motor switch is placed in the OFF position, the
mix pump will be inoperative.

NOTE

The mix pump motor is equipped with an internal
overload that will “kick-out” when the motor is over-
loaded. Consult the trouble shooting section for cor-
rective information.The internal overload will auto-
matically reset after cooling. If the condition contin-
ues, contact a qualified service person.

3.3  OPERATION OF U3 MIX PUMP

SECTION 3

OPERATION INSTRUCTIONS

Figure 4

Pump Motor Switch

This section describes the operation of the U3 mix pump.

NOTE

Mix pump hose must be repositioned every 1 -
2 weeks. 

Failure to comply will result in reduced

mix pump liquid capacity, dispense stoppage, pop-
ping, and possible mix pump hose leakage. Ref. to
Note from Section 4.2.

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 internal check valve on the piston downstroke.
The air is discharged thru a second internal check
valve, and an external check valve on the piston
upstroke.  The air and mix join at the tee and then
travel to the freezer.

Содержание U3-02

Страница 1: ...Model U3 02 OPERATORS MANUAL Manual No 513557...

Страница 2: ......

Страница 3: ...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 q...

Страница 4: ...ecific 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 the...

Страница 5: ...TION INSTRUCTIONS 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...

Страница 6: ...kup Hose 4 C Pickup Hose 4 3 Mix Pump Installation 5 D 4 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 Pum...

Страница 7: ...the freezing cylinder of your freezer quickly conveniently Second the U3 Pump precisely injects a preset amount of air into the mix maintaining overruntoassuremaximumprofitability Third itpressur izes...

Страница 8: ...2...

Страница 9: ...mplete drainage Fig 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...

Страница 10: ...ins to feed See Figure A Figure A 4 Allow the 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 cla...

Страница 11: ...ROUND ADAPTER PLUG 2 4 MIX PUMP CHECK OUT Before using the U3 Mix Pump should be thoroughly cleaned This is necessary to remove any foreign materials that may be present A The over run adjustment is p...

Страница 12: ...6...

Страница 13: ...OTOR 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 pumpmixintothefreezercylinder...

Страница 14: ...he clean position and agitate 5 10 minutes maximum 2 Remove suction tube from mix container Draw off the mix remaining in freezer barrel 3 Pump 2 gallons 7 5 liters of cold potable water thru freezer...

Страница 15: ...deddisinfectingproductsandproce 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 Sanit...

Страница 16: ...s 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...

Страница 17: ...The rocking arm 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...

Страница 18: ...maining hose is removed from the pump Pressures for Stoelting Freezers Cut out 24 3 PSIG For Duke Freezers Cut out 30 3 PSIG 19 ROLLER DISCHARGESIDE COVER CLAMP PICKUP SIDE CUTLINE MEASUREMENT MIX PIL...

Страница 19: ...SSURE IN THIS CASE TURN THEPUMP OFF DRAW 2 3 PINTSTO REDUCE SYSTEM PRESSURETO ZERO TURN PUMP ON PURGEREMAINING AIR IN MIX BAG AND PICK UPHOSE IMPORTANT Before connecting the pick up hose to the mix ba...

Страница 20: ...t water Thoroughly clean all mix from pump See Sec 4 2 for hose replacement Lubricate squeeze roller bearings see Item 10 below 9 PUMP HAS POOR CAPACITY Lift and run limits are exceeded Pump is limite...

Страница 21: ...owinginformation 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 Minimu...

Страница 22: ...ch Allen 5 32 11 1995611 1 Wiring Diagram U3 Pump 12 717917 SV 1 Switch Pressure Stoelting 12 717919 SV 1 Switch Pressure Duke 13 3170824 1 Mounting Bracket 14 3171850 1 Splash Guard 15 4177692 1 Pump...

Страница 23: ...17 OPTIONAL MOUNTING KIT SEESERVICEREFERENCE PAGE19...

Страница 24: ...18...

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Страница 26: ...20...

Страница 27: ...21...

Страница 28: ...22...

Страница 29: ...23...

Страница 30: ......

Страница 31: ...es 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 noti...

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