OPERATOR'S MANUAL - Electro Freeze · 5.2 Pulley Alignment and Belt T ension ... 10 6 Parts...

BLIZZARD®

FLAVOR TREAT MACHINEModel BM3

184913 — 8/97

H.C. Duke & Son, Inc. 2116 Eight Avenue East Moline, Illinois 61244 (309) 755-4553

OPERATOR'S MANUAL

Installation, Operationand Maintenance Instructions

Blizzard Model BM3 Instruction Manual

Operator’s Manual

for the

BLIZZARD ®

Flavor Treat Machine

Model BM3

All contents © Copyright 1997 H.C. Duke & Son, Inc., 2116 Eighth Avenue, East Moline, Illinois 61244


184913 — 8/97 i

Table of Contents

A. “BLIZZARD” Safety Alert iii

B. “BLIZZARD” Decal Location iv

C. Data Plate Information v

1 Installation Instructions .................................................. 1

1.1 Application .......................................................... 1

1.2 Inspection ........................................................... 1

1.3 Handling ............................................................. 1

1.4 Uncrating............................................................ 1

1.5 Limited Warranty ................................................. 1

1.6 Exclusions .......................................................... 2

1.7 Electrical Requirements ...................................... 2

1.8 Specifications ..................................................... 2

1.9 Location of the Machine ...................................... 2

2 Operation Instructions ................................................... 3

2.1 Safety Alert ......................................................... 3

2.2 Preparation ......................................................... 3

2.3 Operation............................................................ 3

3 Control Panel Identification and Operating Instructions .... 4

3.1 Selector Switch ................................................... 4

3.2 Speed Control ..................................................... 4

4 Cleaning and Sanitizing .................................................. 6

4.1 Daily Cleaning ..................................................... 6

4.2 Daily Sanitizing .................................................... 7

4.3 Recommendations .............................................. 7

5 Periodic Maintenance .................................................... 8

5.1 Safety Precautions .............................................. 8

5.2 Pulley Alignment and Belt Tension ........................ 8


ii 184913 — 8/97

Table of Contents – continued

5.3 Periodic Maintenance Schedule ........................... 9

5.4 Daily ................................................................... 9

5.5 Weekly ................................................................ 9

5.6 Monthly ............................................................... 9

5.7 Quarterly ............................................................ 10

6 Parts Replacement ........................................................ 11

6.1 Spindle Shaft Replacement .................................. 11

6.2 Top Bearing Replacement .................................... 12

6.3 Bottom Bearing Replacement .............................. 12

6.4 Belt Replacement ................................................ 13

6.5 Motor Replacement ............................................. 13

6.6 Motor Brush Replacement ................................... 13

6.7 Speed Control Replacement................................. 14

6.8 Potentiometer Replacement ................................ 14

6.9 Three-Position Switch Replacement ..................... 14

7 Troubleshooting Table .................................................... 15

8 Illustrated Parts List ....................................................... 17

9 Wiring Diagram .............................................................. 20

10 Suggested Spare Parts Inventory ................................... 20

Unless otherwise instructed, call or write IDQ’smachine service department for parts, serviceassistance, and warranty claims on the ma-chine at the following:

International Dairy Queen, Inc.P.O. Box 35286Minneapolis, Minnesota 55437(800) 285-5653


A. BLIZZARD® Safety Alert

This safety alert symbol identifies important personal safetymessages in this manual. When you see this symbol, be alertto the possibility of personal injury. Do not attempt to con-tinue until the safety precautions are read and thoroughlyunderstood. See the next section, Blizzard® Decal Locations,and learn the locations of safety decals on the machine. Readand understand all warning decals before operating themachine.

It is important that you read and understand thismanual before operating the mixer!

B. BLIZZARD® Safety Decal Location

Please read and understand all warning decals. Note thelocation of all warning decals on the mixer (see next page).The decals are there to help maintain a safe working environ-ment. All decals must remain legible for the life of the mixer.Check decals periodically to ensure that they are still in placeand easy to read. Replace them if necessary. Know the partnumber of the decal, its type and location, before ordering.

To order new decals, call or write to:

International Dairy Queen, Inc.P.O. Box 35286Minneapolis, Minnesota 55437

(800) 285-5653

184913 — 8/97 iii


B. Blizzard® Safety Decal Locations – continued

WARNINGHAZARDOUS MOVING PARTS,KEEP FINGERS ON CUP ANDAWAY FROM MOVING SHAFT.

DO NOT OPERATE WITH FRONTGUARD REMOVED.

P/N 165131 (Apply to SplashGuard, Lower Front-Center)

CAUTIONUSE ONLY PAPER OR

PLASTIC MIXING CONTAINERSDO NOT USE METAL CONTAINERS

CAUTIONROTATING BLENDING SHAFT

KEEP FINGERS, HAIR AND LOOSE CLOTHINGAWAY FROM MOVING SHAFT. READ

OPERATOR’S MANUAL BEFORE USING.CAUTION

CONTINUED OPERATION AT LOW SPEEDMAY CAUSE EARLY FAILURE.

P/N 165011

P/N 165005

P/N 165010

P/N 165014

iv 184913 — 8/97


Dimensions

Width - in/cm 9-1/8 / 23.2Height - in/cm 25-3/4 / 65.4Depth - in/cm 11-1/4 / 28.6

C. Data Plates

184913 — 8/97 v

Write inReference InformationHERE!

Fill in the following information as soon as youreceive your Blizzard® Model BM3. (The itemnumbers — encircled, below — correspond withthe callout numbers in the figure above.)

1 Model Number: __________________

2 Rating: ________________________

3 Electrical Spec: Voltage _________

Phase _______ Hertz _________

4 Serial Number:___________________

Installation Date_____________________

CAUTIONAll materials and connections mustconform to local requirements and bein compliance with the National ElectricCode (NEC).

CAUTIONIn order to prevent accidental electricalshock, a receptacle with a positiveearth ground is required.

You will find two data plates on the rear panel of yourBlizzard® Model BM3. The data plates provideimportant information that the operator should recordand have available for parts ordering, warrantyinquiries and service requests.

Always check and verify voltage and amperage onthe data plate.


184913 — 8/97 H.C. Duke & Son, Inc. 1

If there is damage to the machine, it mustbe noted on the carrier’s freight bill. Call thelocal agent of the freight carrier and requestan immediate inspection by their claimsinspector. Keep the shipping carton until themachine has been inspected. Do not installthe machine until all claims are resolved.

1.3 Handling

The carton may be moved on a two wheeldolly or carried in your arms. It must not beshaken, dropped or moved by “walking” thecorners of the carton.

Open the top of the carton. Pull out the foaminserts and lift the machine out through thetop of the carton. Save all shipping materialsfor future use.

for replacement is to be paid by IDQ. Thewarranties to repair or replace are the onlywarranties made by IDQ with respect to theBlizzard® machine sold. No implied War-ranty of Merchantability or Fitness forPurpose shall apply specifically, but withoutlimiting the foregoing, IDQ shall not be liablefor any consequential damages.

1 INSTALLATION INSTRUCTIONS

1.1 Application

1.2 Inspection

The Blizzard® Machine BM3 is a heavyduty, 3/4 hp, variable speed mixer designedto blend properly prepared Dairy Queen®

soft serve with a variety of approved flavoringredients.

International Diary Queen (IDQ) warrants tobuyer that the Blizzard® Machine will befree from defects in material and workman-ship at time of purchase. IDQ’s obligationshall be limited to repair or replace, at itsoption, any part or parts which may provedefective within the warranty period.Warranty period is one year unless other-wise specified. Freight for return ofdefective part is to be paid by buyer; freight

Inspect the Blizzard® Machine shippingcarton and its contents for shipping dam-age. Also inspect the internal componentsof the machine for damage.

1.5 Limited Warranty

1.4 Removal from Shipping Carton


2 H.C. Duke & Son, Inc. 184913 — 8/97

1.7 Electrical Requirements

The Blizzard® machine motor will operateonly on 120 volt, 60 Hz single-phasealternating current (AC) with ground. Makesure the electrical supply is 120 volts ACand that the voltage is within 10 percent ofthat specified. Your utility company willcheck the voltage if you so request.

The Blizzard® machine motor will notoperate on direct current (DC) or on currentof 50 Hz frequency. (The “overseas” modeloperates only on 220 volt, 50 Hz.)

120 Volt, 60 Hz Model (Domestic) 220 Volt, 50 Hz Model (Overseas)

Model: BM3 Model: BM3Voltage: 120 Voltage: 220Frequency: 60 Hz Frequency: 50 HzPhase: 1 Phase: 1Drive Motor: 3/4 hp Drive Motor: 3/4 hpRPM: 10,000 (maximum) RPM: 10,000 (maximum)Amperage: 10 Amperage: 5Shipping Weight: 46 lbs. Shipping Weight: 46 lbs.

Table 1. Specifications

to the ingredients being used to make thefinished Blizzard® product. The cord shouldbe plugged into an outlet close to themachine.

Specifications for the Blizzard® Machineare given in table 1, below.

1.8 Specifications

1.9 Location of the Blizzard® Machine

1.6 Exclusions

IDQ shall not be liable for any repairs orreplacement without consent of the Equip-ment Division, or when the equipment isinstalled, operated or maintained in amanner contrary to the instructions of IDQand/or manufacturer.

The base of the machine is provided withfour rubber feet. The machine should bemounted on a solid surface, such as atopping cabinet, dip stand table, or countertop. It should be located as close as possible


184913 — 8/97 H.C. Duke & Son, Inc. 3

2 Operation Instructions

2.1 SAFETY ALERT

2.2 Preparation

Before use, the spindle shaft and machineparts should be washed, rinsed, sanitizedand air dried. The external surfaces of themachine, including the splash shields andmachine front, should be wiped clean andthen wiped with a sanitizing solution. Followthe procedures in Cleaning and Sanitizing,Section 4.

2.3 Operation

It is important that you read and understand the safety instruc-tions before operating the mixer! If you have not already doneso, turn to the front of this manual and read Sections A, B, andC before proceeding.

CAUTIONDO NOT touch or get too close to moving parts. Clothing, jewelry, hairor other body parts may become caught in the machine and result inserious personal injury.

1. The Blizzard® mixer should only beused for the blending of soft serve icecream, or similar products, with liquidflavorings or pre-crushed solidingredients. It is NEVER to be used togrind or crush the solid ingredientsbefore or during blending.

2. The temperature of the ice creamproduct should be 18 to 20°F (-7.8 to-6.7°C).

3. The Blizzard® mixer is designed toblend 30 to 35 (16 oz.) servings anhour with an average of 40 to 45seconds blending time.

4. To operate, set the desired speed forproduct preparation and move thetoggle switch for either “ON” or“CONTINUOUS RUN” operation, asrequired. The normal position formixing is 70 percent full “ON”. Markthe desired setting for the product forrepeated use (refer to Control PanelIdentification and OperatingInstructions, Section 3).

Important:Do not use metallic mixing containersor collars for preparation of the frozenproduct or when sanitizing.


4 H.C. Duke & Son, Inc. 184913 — 8/97

3.1 Selector Switch

2. “OFF” is the center position. Power isprovided to the switch only. The drivemotor will not run. If any work is to bedone within the cabinet, THE POWERCORD MUST BE DISCONNECTEDFROM THE WALL OUTLET.

3. The bottom position, “JOG”, ismomentary run. Power is supplied tothe drive motor and the spindle shaftwill spin as long as the switch is held inthis position. This is a spring-loadedposition. “ON” is the machine’s normaloperating position.

This three-position toggle switch has acenter “OFF” position with top and bottompower positions. (See figure 1 for locationof controls.)

1. The top position, “ON”, is continuousrun. Power is provided to the drivemotor continually and the spindle shaftwill spin. DO NOT ALLOW MIXER TOOPERATE AT HIGH SPEED UNDERNO LOAD, OR AT LOW SPEEDUNDER LOAD.

3.2 Speed Control

This control adjusts the speed of the drivemotor and spindle shaft. The machine isnormally operated at a specific setting forthe desired product. A lower speed isnormally used when washing or rinsing theshaft with water. The lower speed helps

prevent the water from splashing out of thecup. As a reference point for spindle shaftspeed, remember that when the control dialis at zero (0), the spindle shaft should beturning slowly.

3 Control Panel Identification and Operating Instructions


184913 — 8/97 H.C. Duke & Son, Inc. 5

Figure 1. BLIZZARD® Machine Controls


6 H.C. Duke & Son, Inc. 184913 — 8/97

4 Cleaning and Sanitizing

Important:Never place a towel or any other materialon the shaft to clean it when it is placedin the “ON” or “JOG” position. If thematerial becomes caught, it will damagethe machine.

Important:Do not allow water above the collar onthe top portion of the Blizzard shaft.Water in this area may damage themachine.

4.1 Daily Cleaning

3. Stop the spindle operation and use asmall brush to clean areas around theagitator.

4. Rinse with clean water.

1. Fill a paper Blizzard® cup or shakecup ¾ full with a solution of warmsoapy water (100°F or 37.8°C) andhold it under the spindle.

2. To clean, operate the spindle at asetting of 20-30 on the speed controldial.

The spindle shaft, agitator (exposed turningportion) and splash guards must be washed,rinsed, sanitized, air dried, and preparedfor use at the end of each day of operation.

The operator should have clean hands andrefrain from coughing or sneezing on partsto avoid contamination. Do not allow any ofthe Blizzard® machine parts to come intocontact with objects that have not beensanitized.

When cleaning or sanitizing the spindleshaft and agitator, use a lower speed settingthan used for blending to prevent water orsanitizing solution from splashing out of thecup.

CAUTIONNever place a towel or any other material on the rotating shaftto clean it.

CAUTIONRotating metal shaft. To avoid injury, use only paper or plasticmixing containers. Contact between shaft and metal containersor malt collars can cause shaft to wear and break.


184913 — 8/97 H.C. Duke & Son, Inc. 7

4.2 Daily Sanitizing

1. In a clean container, prepare onequart (1 liter) of sanitizing solution.Solution should be Stera-Sheen, or anequivalent, with 100 parts per million(PPM) available chlorine and be mixedaccording to manufacturer'sinstructions. If you have questionsabout the advisability of using aspecific sanitizer solution, contactIDQ's Equipment Service Department.

2. Fill a paper Blizzard® cup or shakecup 3/4 full of sanitizer and hold itunder the spindle to sanitize.

4.3 Recommendations

IDQ recommends that the external surfacesof the machine, including the shields, bewiped to remove splashes or spills. Followthe evening cleaning with a sanitizer wipe-down and allow to air dry.

3. Operate the spindle in this solution ata setting of between 20-30 on thespeed control dial. This operationshould be performed for at least oneminute to allow the sanitizer toneutralize and destroy contaminantson the shaft and agitator.

4. The entire mixing shaft should bewashed with sanitizer, but do not allowthe sanitizer to get above the collar onthe top portion of the Blizzard®

machine shaft.


8 H.C. Duke & Son, Inc. 184913 — 8/97

5 Periodic Maintenance

CAUTIONFor the following steps, power to the machine must be “OFF” for safety.Unplug power cord before proceeding. Failure to disconnect power sourcemay cause electrical shock.

Take all safety precautions when performingmaintenance work to protect against injuryor death. Disconnect power cord except forthe short period of time required to checkproper operation. Do not leave shield orsafety panels off when maintenance iscompleted or interrupted.

5.1 Safety Precautions

Figure 2. Location of Belt AdjustmentScrews

Inspect the belt tension and condition fourtimes per year by performing the following:

1. Remove top panel.

2. Depress belt with your finger at themidpoint between the pulleys (seefigure 2). When adjusted properly, thebelts should depress 5/16" withapproximately five pounds of pressure.

3. Adjust to the proper tension byresetting the four adjustment screws(see figure 2) holding the motorhousing in place.

4. Tighten the screws equally to avoidmisalignment. DO NOTOVERTIGHTEN THE BELT.Overtightening will cause excessive beltwear and heat on both the spindle shaftand drive motor bearings. Checkalignment by using a straight edgeacross the face of the pulleys. Makethe necessary adjustments if out ofalignment.

5.2 Pulley Alignment and Belt Tension

5/16”


184913 — 8/97 H.C. Duke & Son, Inc. 9

In order to maintain the continued safety and performance built into this unit, it is importantto follow the installation and maintenance instructions outlined in this manual. ALWAYSUNPLUG THE MACHINE BEFORE SERVICING OR CLEANING.

5.3 Periodic Maintenance Schedule

CAUTIONFor the following steps, power to the machine must be “OFF” for safety.Unplug the power cord before proceeding. Failure to disconnect thepower source may cause electrical shock.

5.3.3 Monthly

1. Make sure power switch is “OFF”.

2. UNPLUG THE MACHINE.

3. Remove the top panel and inspect forbelt wear and tension, splattered mix,and any unusual condition.

4. With the top panel off, plug in and thenstart the machine with caution.

5. Listen for unusual rhythms, squeaks,overtones or sounds not common tonormal operation. Smell for unusualodors that may indicate a problem,such as spoiled mix, hot motor, orelectrical arcing.

6. Turn power switch to “OFF”, unplug themachine and reinstall top panel.

CAUTIONThis machine has HOT surfaces. Place the unit in a well-ventilated loca-tion. Do not touch the cabinet top, rear or side surfaces during or just afteroperation.

5.3.1 Daily

Wash, rinse, sanitize and air dry all parts ofthe machine that come into contact with mixor product.

5.3.2 Weekly

Inspect all parts for wear, replacementor adjustment.

CAUTIONDo not touch or get too closeto moving parts. Clothing,jewelry, hair, or other bodyparts may become caught inthe machine and result inserious personal injury.


10 H.C. Duke & Son, Inc. 184913 — 8/97

Figure 3. Inspection of Mixing Shaft

5.3.4 Quarterly

POINT

POINT

3. Carefully inspect the mixing shaft forsigns of wear on a weekly basis. Thefollowing illustrations (figure 3) depictthe areas that require examination. Ifthe mixing shaft has any sign of wear,it should be taken out of service until areplacement part can be installed.

1. Inspect drive motor brushes for wearand replacement.

2. Inspect drive belts and adjust orreplace in accordance with paragraph5-2.

Please remember that theBlizzard® mixer was designedto blend soft serve ice cream(or similar products) withliquid flavorings or pre-crushed solid ingredients. Donot use it to grind or crushthe solid mixing ingredients!

Examine Point A Surfaces should be polished, not galled or worn. The edge of the cup should be shaped asshown above at point F, not flattened or worn down as indicated at point A. A worn orflattened surface indicates wear.

Examine Point B The edges should be polished, not galled or worn. Any sharp edges or burrs indicate wear.

Examine Point C The screw head should be oval shaped as shown above at point E, not flattened or worn downas indicated at point C. A worn screw head indicates wear.

Examine Point D Inspect the solder joint for signs of cracking. The cup should be tight on the shaft, not loose. Acracked or loose cup indicates wear.

CAUTIONRotating metal shaft. To avoidinjury, use only paper or plasticmixing containers. Contactbetween shaft and metalcontainers or malt collars cancause shaft to wear and break.


184913 — 8/97 H.C. Duke & Son, Inc. 11

6 Parts Replacement

NOTE: If any parts are replaced during the warranty period, it will be necessary toreturn the defective part to the supplier for possible credit.

NOTE: Refer to Figure 4 at the end of this section for illustration of parts and theircorresponding item numbers included in parentheses in the following paragraphs.

6.1 Spindle Shaft Replacement

1. Disconnect power cord (27) from thewall and remove splash shield (4).

2. Remove the four screws (2) holdingtop cover (1). Remove cover.

3. Loosen setscrews on slinger collar(17) and slide down spindle shaft (18).

4. Remove the four screws (2) holdingthe lower slot cover (35). Removecover.

5. Remove the four screws (2) holdingthe motor cover assembly (32) inplace. Slide the motor cover forwardto access the wiring. Note the wirerouting — wires must not touch sharpedges or moving parts duringreassembly. Disconnect the toggleswitch (40) wires and potentiometer(41) wires at speed control board (42).Note the wire connection locations forreassembly. Remove cover.

6. If necessary, remove the four screws(28) holding the splash shields (29).

7. Loosen the four screws (9) holding thedrive motor (31) in place and removebelt (7).

Important:When heating parts to loosen Loctiteadhesive, protect the bearings from heat.Excessive heat will destroy the bearings.

NOTE: The drive and driven pulleys areassembled to their respective shafts usingLoctite® Type RC/680 adhesive. Loctiteadhesive is also used in the assembly of thespindle shaft to the upper and lower bear-ings. It will be necessary to apply heat toloosen the Loctite adhesive.

8. Loosen the two setscrews on thedriven pulley (8) installed onto shaft(18). Apply heat to the hub andremove pulley.

9. Loosen the two set screws on each ofthe collars for the upper and lowerbearings (19). Apply heat to the hub ofthe bearing. Using a rubber hammer,tap the shaft (18) down through thelower part of the base (23). After theshaft is out of the top bearing (19), tiltthe shaft to clear the base and removeit from the lower bearing (19).

CAUTIONFor the following steps, power to the machine must be “OFF” for safety. Unplugpower cord before proceeding. Failure to disconnect power source may causeelectrical shock.

— continued


12 H.C. Duke & Son, Inc. 184913 — 8/97

6.1 Spindle Shaft Replacement - continued

11. Reverse the above steps toreassemble. Make sure there is properbelt tension of 5/16 inch (refer toparagraph 5-2). Ensure toggle switch(40) and potentiometer wires (41) loopaway from moving parts whenreinstalling motor cover assembly.Wires must not touch the louvers in themotor cover assembly (32).

NOTE: If you are experiencing difficultyaligning the mixer shaft, call your IDQService Representative or the manufacturer,

6.2 Top Bearing Replacement

3. Reverse the above steps toreassemble. (You MUST clean partsthoroughly before reassembly andapplication of Loctite — You MUSTreapply Loctite RC/680 adhesive to theshaft, pulley, and bearings accordingto the manufacturer’srecommendations.)

6.3 Bottom Bearing Replacement

1. Repeat steps 1 through 9 of theSpindle Shaft Replacement, paragraph6-1.

2. Replace the bottom bearing (19), twoscrews (14) and washers (15, 16).

3. Reverse the above steps toreassemble. (You MUST reapplyLoctite RC/680 adhesive to the shaft,pulley, and bearings according to themanufacturer’s recommendations)

NOTE: Replace bearings if damaged byheat.

NOTE: You MUST reapply Loctite to theshaft, pulley, and bearings according to themanufacturer’s recommendations when youreassemble these parts.

10. Slide the new shaft up through thelower bearing and the upper bearing.Visually align the shaft and tighten thebearing housing. Install the pulley.


2. Replace the top bearing (19) and, twoscrews (14) and washers (15, 16).


184913 — 8/97 H.C. Duke & Son, Inc. 13

6.6 Motor Brush Replacement

6.4 Belt Replacement

6.5 Motor Replacement

1. Repeat steps 1 through 7 of theSpindle Shaft Replacement, para. 6-1.

2. Replace with new belt (7).

3. Slide motor (31) to the rear forproper belt tension of 5/16 inch.(See para. 5-2, Pulley Alignment andBelt Tension.)

4. Reverse the above steps toreassemble.

1. Repeat steps 1 through 7 of theSpindle Shaft Replacement,paragraph 6-1.

2. Loosen the two set screws holding themotor pulley (8) in place. Apply heatto the hub, remove the pulley and setaside.

3. Disconnect the black (A-) and white(A+) wires from the speed control.Note the terminal locations forreassembly of new motor.

4. Remove the four mounting screws(24) on the rear panel of the machineholding the motor weldment support

assembly (6) and support legs (45) inplace. Remove motor (31) and motorsupport (6, 45) as an assembly fromthe blender base assembly (23).Move the assembly to a work benchand remove the old motor.

5. Install the new motor (31) with the fourmounting screws (24) and washers.

6. Reverse the above steps toreassemble. Refer to WiringDiagram, Section 9, to connect wires.(You MUST reapply Loctite RC/680adhesive to the shaft and pulleyaccording to the manufacturer’srecommendations.)

1. Repeat steps 1 through 5 of theSpindle Shaft Replacement, para. 6-1.

2. Remove the green ground wire fromthe support (45). Disconnect themotor wires from the speed control.

3. Remove the four mounting screws(24) on the rear panel of the machineholding the motor weldment supportassembly (6) and support legs (45) inplace. Move the assembly to a workbench.

4. Use a screwdriver to remove two caps(black plastic, near bottom of motor)holding the carbon brushes. Replacethe brushes and end caps.



14 H.C. Duke & Son, Inc. 184913 — 8/97

6.7 Speed Control Replacement (Electronic CircuitBoard)


2. Holding the new speed control (42)next to the old one, REMOVE ONEWIRE AT A TIME from the old controland connect to the new control. (Ifnecessary, refer to Wiring Diagram,Section 9.)

3. Remove three screws (13) holding theold control to the base (23). Removethe old control (42).

4. Install new control (42) and secure withthree screws (13).


NOTE: It may be necessary to calibrate thenew speed control to get the proper speed atthe various speed dial settings. For instruc-tions, call the IDQ Equipment ServiceDepartment.

6.8 Potentiometer Replacement (part of speed control unit)


2. Loosen the two setscrews and nutholding the knob (33) andpotentiometer (41) to the front of theblender and remove knob and the oldpotentiometer (41).

3. Install new potentiometer (41) andknob (33) into front panel of blenderand secure with nut and twosetscrews.


6.9 Three-Position Toggle Switch Replacement (SelectorSwitch)


2. Hold the new toggle switch (40) next tothe old toggle switch. Disconnect thethree wires from terminals of old switchand connect to the new switch in thesame order. (Refer to WiringDiagram, Section 9 of this manual.)

3. Remove nut on front panel of blenderthat holds the toggle switch shaft.Remove switch shield (44) from frontof blender and remove the old switch.

4. Install the new switch and switch shieldin place and secure with the shaft nut.



184913 — 8/97 H.C. Duke & Son, Inc. 15

7 Troubleshooting Table

SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION

Mixer will not operate. 1. Machine not plugged in.2. Wall circuit breaker off.3. Selector switch OFF.4. Speed control potentiometer defective.5. Speed control defective.6. Drive belt loose or broken.7. Drive motor brushes worn.8. Drive motor defective.9. Selector switch defective.10. Loose or broken wire.11. Spindle shaft bearings binding12. Foot switch defective.

1. Plug in.2. Turn on.3. Turn on.4. Replace.5. Replace.6. Adjust or replace.7. Replace brushes.8. Replace motor.9. Replace.10. Tighten or repair.11. Replace.12. Replace.

Spindle shaft speeds are erratic. 1. Speed control defective.2. Drive belt worn or loose.3. Drive motor brushes worn.4. Drive motor defective.5. Loose pulleys.6. Spindle shaft bearings binding.7. Speed control potentiometer defective.

1. Replace.2. Adjust or replace.3. Replace brushes.4. Replace motor.5. Tighten set screws.6. Replace.7. Replace.

Mixing time too long. 1. Speed set too low.2. Product too cold.3. Overrun too low.4. Drive belt worn or loose.

1. Turn up speed.2. Check soft serve for 18° Ftemperature.3. Check soft serve overrun for 40%.4. Adjust or replace.

Unit operates only in "ON" positonor only in "JOG" position, but notboth.

1. Selector switch is defective. 1. Replace.

Unit runs continuously in "OFF"position.

1. Selector switch is defective.2. Foot switch defective.

1. Replace.2. Replace.

Drive motor operates, but spindleshaft does not turn.

1. Loose or broken drive belt. 1. Adjust or replace.

Rubber-like odor coming from thecabinet*

1. Drive belt worn or loose.2. Soft serve product too cold putting extrastrain on drive belt.3. Overrun too low putting extra strain ondrive belt.

1. Adjust or replace.2. Check soft serve for 18° Ftemperature.3. Check soft serve overrun for 40%.

*Because the motor runs hot, some odor is expected during the first few days of operation.


16 H.C. Duke & Son, Inc. 184913 — 8/97

7 Troubleshooting Table - continued

SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION

Machine making loud noises. 1. Loose panels or sheet metal parts.2. Pulleys rubbing against top cover.3. Spindle shaft hitting lower cover plate orcabinet parts.4. Motor bearings binding or worn.5. Spindle shaft bearings binding or worn.6. Spindle shaft bent or out of alignment.7. Drive belt worn or loose.8. Set screws on pulleys or bearingsloose.

1. Locate and tighten screws.2. Make adjustment.3. Locate and clear.4. Replace motor.5. Replace.6. Replace.7. Adjust or replace.8. Tighten or replace set screws.

Machine runs at same speed with anyspeed setting.

1. Speed control defective.2. Potentiometer (speed dial) defective.

1. Replace.2. Replace.

Drive motor will not start, humsintermittently.

1. Defective motor.2. Low line voltage.3. Speed control set too low.

1. Replace.2. Ask power company toincrease voltage to not less than10% below nameplate rating orinstall a transformer. Check forinadequate wire sizes.3. Set to proper level.


184913 — 8/97 H.C. Duke & Son, Inc. 17

Figure 4. Blizzard® Machine Assembly (Sheet 1 of 3)

40�

41�

8 Illustrated Parts List

Use the Blizzard® Machine illustration, figure 4 below, in conjunction with the parts listgiven on the following two pages to identify the part you wish to order. The numberenclosed in a circle in the illustration below corresponds to the part name and numberon the parts list. You will also need to provide the serial number of your machine whenordering parts.


18 H.C. Duke & Son, Inc. 184913 — 8/97

8 Illustrated Parts List - continued

ItemReference

Number

Part Number Description

1 116583 Top Cover Assembly

2 160076 Screw TRPM #10 - 24 x 1/2 SST

3 --- Decal "Caution - Hot Surfaces" (Furnished byIDQ)

4 196005-01 Guard - Plastic Splash

5 165131 Decal - "Caution - Moving Parts"

6 116571 Support - Assembly Motor Weldment

7 153138 Belt - Poly J 20" 6 Groove

8 138940 Pulley - 6 Groove - J Section (2.35" Dia.)

9 160226 Screw - TRPM #10 - 32 x 5/8 SST

10 160137 Washer - Flat #10 x 3/4 ZN

11 160140 Washer - Lock #10 ZN

12 160149 Washer - Int. Tooth Lock #10

13 160088 Screw - TRPM #10 - 32x1/4

14 160013 Screw - HXHC 3/8 - 16x1 ZN

15 160132 Washwer, Flat 3/8 ZN

16 160143 Washer, Lock 3/8 ZN

17 159363 Collar - Slinger

18 116581 Spindle Shaft Assembly, 3/4 HP

19 153019 Bearing - Pillow Block 1/2"

20 160056 Screw - SK set 1/4 - 20 x 1/4 ZN

21 159132 Nut, Speed #10 - 24 SST

22 160048 Screw - TRPM 1/4 - 20 x 1/2 SST

23 116579 Blender Base Assembly

Figure 4. Blizzard® Machine Assembly (Sheet 2)

NOTE: Part Number 117281 Carton - Assy. Blender is required for return shipment of theblender.


184913 — 8/97 H.C. Duke & Son, Inc. 19

8 Illustrated Parts List ----- continued

Figure 4. Blizzard® Machine Assembly (Sheet 3)

ItemReference

Number

Part Number Description

25 159132 Nut - Speed #10 -24 SST

26 150782 Bushing - Strain Relief

27 150583 Cord with Plug - 6 ft.

28 160026 Screw - TRPM #10 -24 x 1/2 SST

29 136860 Guard - Splash

30 199031 Bumper - Rubber

31 151093 Motor - 3/4 HP (120 Volt/ 60 HZ)

31A 151097 Motor - 3/4 HP (230 Volt/50-60 HZ)

31B 150878 Set - Motor Brush (120 and 230 Volt) (not shown)

32 117161 Motor Cover - Assembly

33 165179 Plate - 0-100 Dial

34 165011 Decal - Blender Caution

35 138572 Cover - Slot

36 165005 Decal - Blender Mix Container

37 165010 Decal - Switch

38 162605 Knob - RD Dial

39 165100 Nameplate - Electro Freeze

40 150429 Switch - Toggle MOM/OFF/ON SPTD

40A 160459 Nut - Hex

41 114982 Potentiometer Assy - 5K

41A 160458 Nut

42 116938 Control - Motor Speed with Potentiometer (120Volt/60 HZ

42A 150845 Fuse - 10a 120 V Slow-Blow

42B 165182 Decal-Fuse Size 10A Slow Blow

42C 150846 Fuse - 5a 220 V Slow-Blow

43 116939 Control - Motor Speed with Potentiometer (230Volt/50-60 HZ)

44 137896 Shield - Switch

45 116573 Support Assembly - Leg


20 H.C. Duke & Son, Inc. 184913 — 8/97

9 Wiring Diagram

10 Suggested Spare Parts Inventory

Part Number DescriptionQuantity Recommended for

Each Machine

153138 Belt - Drive 1

150429 Switch - Toggle 1

150878 Motor Brushes (set of 2) 1

199031 Bumper - Rubber (feet) 4

150845 Fuse - 10 Amp Slow-Blow 2

150846 Fuse - 220v 5 Amp Slow-Blow 2


184913 — 8/97 H.C. Duke & Son, Inc. 21

11 Alternate Wiring Diagram

Using 115939 Control, Motor Speed with Potentiometer

1. Remove the top and motor cover assemblies.

2. Remove and discard the slotted guard.

3. Remove the fused motor speed control board.

4. Install the alternate motor speed control.

5. Wire the alternate motor speed control and potentiometer asshown above.

6. Use the wire ties provided to secure the wires away from theblender shaft.

7. Reinstall all covers and screws.


22 H.C. Duke & Son, Inc. 184913 — 8/97

Notes

OPERATOR'S MANUAL - Electro Freeze · 5.2 Pulley Alignment and Belt T ension ... 10 6 Parts...

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Transcript of OPERATOR'S MANUAL - Electro Freeze · 5.2 Pulley Alignment and Belt T ension ... 10 6 Parts...