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6-Quart Stand Mixer Service Manual LIT4176981 O 2002 KitchenAid itchenAid’ ura 6-QUART SOLID STATE STAND MIXER MODELS: INCLUDES EXPORT * KP, 4KP MODELS: * KT, 4KT 5KP * KD, 4KD 8KP 9KP KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 - 6-Quart Stand Mixer Service Manual LIT4176981 O 2002 KitchenAid 6-QUART SOLID STATE STAND MIXER MODELS: INCLUDES EXPORT * KP, 4KP MODELS: * KT, 4KT 5KP * KD, 4KD 8KP 9KP KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 - Kitchen Aid® 6-Quart Stand Mixer Manual LIT4176981 © 2002 KitchenAid PURPOSE: The purpose of this manual is to familiarize the housewares technician with the techniques required to repair the KP (Professional), KT (Epicurean) and KD (Custom) Stand Mixers. a INDEX: PAGE NUMBER Purpose and General Information 1 Product Specifications, Safety and Tools Power Cord Replacement 3 Disassembly of Gearcase and Planetary 4 Component Access 5 Drive Train and Planetary 6 Worm Gear Assembly Variations 7 Repairs to Bowl Support and Column 8 Motor Replacement 9 Speed Control Assembly Service 10 Early Domestic Wiring Diagram 11 В Current Domestic Model Wiring Diagram 12 = | Export Model Wiring Diagram 13 | Problem Guide 14 KITCHENAID Export Model Parts Table 15 6-QUART STAND MIXER IMPORTANT: This Manual does NOT cover Repair Procedures for the: K45SS - KSM90 - K5SS - KSMC50 - KSM103 - KSM110 - KSM150 - KSM151 Refer to: LIT4177310-B for Repair Procedures on these models. GENERAL INFORMATION: (For Domestic Models Only.) These KitchenAid Units are 6 Quart Capacity 115 Voit Stand Mixer that has the following key product features: | * Heavy Duty Motor - Delivers the power to mix double batches of even heavy cookie and bread douchs and cake batters. KP Models = 525 W. KD Models = 500 W. KT Models = 475 W. * Heavy Duty Transmission - All metal gears are designed for many years of trouble-free operation. * Enhanced Electronic Speed Sensor - Monitors operation to maintain precise speed regardless of loa 1. . * 10-Speed Control - Lets the user select the right speed for the mixing job, from very high to very slow stir. e Overload TCO Control - Helps eliminate overheating. * Soft Start Mixing Feature - Helps Prevent ingredient "splash-out" and "flour puff" at startup. * New Design 6 Quart Capacity Polished Stainless Steel Bowl - Big enough to handle double batches of even heavy mixtures. Wide open design makes adding ingredients easy. ' * Hinged Hub Cover - Flips up allowing easy installation of attachments - never leaves the mixer. * New Ventilation System - Cools the entire mixer from the base through the mixer head, prolonging mixer life. * Unique Mixing Action - Reaches every section of the bowl to blend ingredients thoroughly - no need to rotate the bowl. » All Metal Construction - Broad base eliminates "mixer walk" while 5 rubber feet protect the counter and promote stable operation. Clear 2-Piece Pouring Shield - New design with an enlarged chute to facilitate addition of ingre ..._.. * Ergonomically Designed Bowl Handles - Bowl and Bowl Lift Lever are contoured to comfortably “t ti. . hand. | » Seamless Design - No crevices or cracks to trap ingredients - makes cleanup easy. | ) The Product Specifications and Dimensions for the 6-Quart Stand Mixer are Listed in a separate section. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 - Page 1 Kitchen Aial® 7 6-Quart Stand Mixer Manual LIT4176981 — PRODUCT SPECIFICATIONS - The following ‘product Specifications and Dimensions are subject to change without notice. Dimensions are listed in inches and (centimeters). Weights are listed in pounds and (kilograms). * Electrical Requirements - 115 Volts AC - 60 Hz - Single Phase for Domestic Models. * Height - 16.6 inches (41.9 centimeters) * Width - 11.3 inches (28.7 centimeters) * Depth - 14.6 inches (37.1 centimeters) * Cord Length - 50.8 inches (129.0 centimeters) * Net Weight - 25.0 pounds (11.3 kilograms) * Carton Height - 19.4 inches (49.3 centimeters) * Carton Width - 13.3 inches (33.8 centimeters * Carton Depth - 17.3 inches (43.9 centimeters * Shipping Weight - 25.5 pounds (11.6 centimeters) * Colors - Many Colors are available. ltems Included with Product - The following items are included with the product at this time: In KP Models: * Burnished Flat Beater Burnished Dough Hook * Professional Wire Whip « 2-Piece Dual Purpose Pouring Shield. In KD and KT Models: » Coated Flat Beater ¢ Coated Dough Hook * Professional Wire Whip * 2-Piece Dual Purpose Pouring Shield. Replacement Warranty - If the Stand Mixer fails within the first year of ownership, KitchenAid will arrange to deliver an identical or comparable replacement to your door free of charge and arrange tohave the failed mixer returned. For more information concerning the product warranty contact the Customer Satisfaction Center at (800) 541-6390. IMPORTANT SAFETY RECOMMENDATIONS This Service Manual is written for the Professional Service Technician who has familiarity with the KitchenAid Stand Mixer. The following Safety Guidelines should be adherred to when servicing this product. | * The workplace will be dry and sanitary at all times and all units should be inspected for cleanliness before any work is started. * Visually inspect the unit requiring service in a well luminated area. * A mild, non-abrasive dishwashing soap solution and clean towel can be used to wash any unit requiring attention. « The hands of the Service Technician should be clean at all times during the service procedure. * ESD (Electo Static Discharge) protection should be provided when servicing the electronic compo- nents. © 2002 KitchenAid * The work place for the stand mixer will have properly grounded AC outlets that adhere to all Local Electrical Codes that are applicable at the time of the repair. * The Stand Mixer Power Cord should always be inspected first before testing the mixer operation. * Do NOT run the Mixer if the Power Cord is damaged--replace it. * All disassembly and assembly procedures dis- cussed in this manual should be conducted with the unit disconnected from the AC Supply. - * Do NOT leave the unit unattended while running the mixer for bowl clearance or any other check. * Always unplug the unitimmediately after conclud- ing electrical tests. * The Service Technician should wear Protective Eyeware at all times when conducting a repair on the Stand Mixer. * Loose fitting sweaters, shirt sleeves or bracelets should NOT be worn while servicing the Stand Mixer. | -used to secure the Pedestal to the base. A Power TOOLS REQUIRED - The following tools are necessary to service the KitchenAid Stand Mixer. * PHILLIPS SCREWDRIVERS - A Medium Size for numerous 8-32 x 5/8" screws used in Lower Cover. A Larger Size will be needed on the 1/4-20 x 3/4" screws . Screwdriver is recommended for the larger screws. ¢ STRAIGHT SCREWDRIVER - A Medium Size for removing the 10-24 x 1/2" Latch Bowl Spring and for adjusting the Bowl Clearance Adjusting Cam. A small size for removing the "C" Clip at the bottom of the Bowl Lift Rod. e SNAP RING PLIERS - Used to remove the (2) Retaining Clips from the top of the Planetary Assembly Shaft and the Agitator Shaft on the Planetary. Always wear Safety Goggles when using Snap Ring Pliers. NEEDLE NOSE PLIERS - Used for removing Hall Effect Sensor, Motor and Power Cord Leads from the Control Board Assembly. DRIFT PUNCH - Used for removing the (2) Retain- ing Pins from the Planetary Assembly Shaft and the Agitator Shatft. SMALL HAMMER - Used for the light tapping force required to remove the (2) Retaining Pins dis- cussed above. * VOLT-OHMMETER - For diagnosis a Volt-Ohm- meter is useful in confirming continuity and an In-Line Wattmeter is particularly helpful in confirming Trans- mission drag problems. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 e Page 2 Kitchen Aidal°® 6-Quart Stand Mixer Manual LIT4176981 © 2002 KitchenAid POWER CORD REPLACEMENT - Replacing the Power Cord on the KitchenAid Professional 6 Mixer is an excellent way for the service technician to become _ familiar with the product. The Power Cord on this product must be replaced if it is damaged or abused in any way. Before you begin, review the section in this manual on Disassembling the Gearcase and Planetary so you will be familiar with the removal of the Trim Band and Gearcase Motor Housing. 1. Gaining Access - Remove the Trim Band and the Gearcase Motor Housing Screws and set these parts aside. The Gearcase Motor Housing is a good place to store your fasteners. GEARCASE MOTOR HOUSING ACCESS IS ACHIEVED WITH THE REMOVAL OF (5) PHILLIPS SCREWS Always place the Gearcase Motor Housing on a soft surface to avoid scratching the paint. At this point you should have (1) 8-32 x 1/4 Phillips Screw that held the Trim Band and (4) 8-32 x 5/8" Phillips Screws that secured the Gearcase Motor Hous- ing. 2. Clear the Deck - You will notice that the Lower Gear Case has a total of (9) additional 8-32 x 5/8" Phillips Screws that are used to secure the Ground Lug, Control Assembly, Transmission Cover and Mo- tor. Remove all of these screws from the Lower Gearcase in the following order: (2) Control Assembly, 4) Transmission Housing, (2) Motor and (1) Power ~ord Ground Lug. NOTE - Carefully loosen the Transmission Cover do not remove) from the Lower Gearcase. The Transmission Cover is packed with grease ınd it is best to keep the Cover in place after the Motor las been removed. . | This Cover will be loosened and tipped open later ) free the Motor. 3. Control Board Leads - Using Needie Nos : Pliers, remove the Power Cord Leads from the Contro: Board. 4. Motor and Control Board Removal - The Motoris still attached to the Control Board by it's leads and by the 3-Conductor Hall Effect Cable. it is not necessary for you to remove these leads when replacing the Power Cord. TRANSMISSION COVER LOWER GEARCASE ACCESS TO POWER CORD REQUIRES a, % THE LOWER GEARCASE TOBE REMOVED FROM COLUMN Carefully tip the Transmission Cover up to free the Motor Drive, then carefully lift the Motor / Control Board up from the Lower Gearcase Cover and set them aside. 5. Secure Transmission Cover - After removing the Motor and Control Assembly, temporarily secure the Transmission Cover by replacing the (4) 8-32 x 5/ 8" Phillips Screws. This step will allow the service technician to rotate “the Lower Cover for access to the Power Cord and not spill any grease. 6. Column Assembly Screws - At this point the Power Cord is fully exposed and you can proceed with the access by removing the (3) 1/4 - 20 x 3/4" Phillips Screws that hold the Lower Cover to the Column. These are larger than the 8-32 x 5/8" Screws and will often require a power Screwdriver to be loosened. 7. Power Cord Replacement - The old Power Cord can be freed from the Lower Cover by hand once the Column has been removed. Always cut the old cord into small pieces and then dispose. Follow these steps in reverse order after you have positioned the new Power Cord into the Lower Cover. -- CONFIRMATION - Always test the Mixer for proper operation after replacing the Power Cord. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 = Page 3 Kitchen Aia°® 6-Quart Stand Mixer Manual LIT4176981 SERVICING GEARCASE AND PLANETARY - The Transmission Housing can be removed by hand after the (4) 8-32 5/8" Phillips Screws have been removed. Grasp the Transmission Housing securely and simply lift it upward. Be careful as the Attachment Hub Bevel Gear is in this Transmission Housing. ATTACHEMENT HUB BEVEL GEAR " USE PAPER TOWELS TO AVOID COMING IN CONTACT WITH GREASE This Gear can be removed later by hand forinspec- tion. Carefully set the Transmission on your paper towels after inspecting it's condition. Replace the Transmission Housing if cracks are evident. The Hall Effect Sensor Cable should be dis- connected from the Control Board so the the Board “can be moved away from the Transmission Housing. HALL EFFECT SENSOR CABLE —__ USE CARE WHEN , REMOVING THIS CABLE Make sure thatno grease comes in contact with the connector at the end of the Hall Effect Sensor cable. DRIVETRAIN TERMINOLOGY - Before Servicing the Gearcase lets review the rotating gears that make up the gearcase. Additional details follow for servicing each of these gears. * Attachment Hub Bevel Gear- This gear is located inthe Transmission Housing and can be removed by hand from the Transmission Housing for inspection. * Bevel Gear - This is the top gear on the Planetary Shaft. The Bevel Gear is held to the Planetary Shaft with a Snap-Ring. This Snap-Ring must be removed with Snap-Ring Pliers to remove the Bevel Gear. » Worm Follower Gear - This is the bottom gear on the Planetary Shaft. | The Worm Follower Gear can be removed from the Planetary Shaft after the Bevel Gear and Retaining Pin are removed. © 2002 KitchenAid The Planetary is free to drop after the Pin is removed. * Worm Gear - This is an assembly that has a "Front" and "Rear" bearing on each end of the Worm Gear Shaft. This worm gear assembly can be lifted from the lower gearcase after the Transmission Hous- ing is removed. ATTACHEMENT HUB BEVEL GEAR SNAP RING | не © WORM —> GEAR © ASSEMBLY FOLLOWER GEAR The Technician should be aware of the three different Worm Gear Variations that have evolved with the product, as different replacement parts will be required, depending on the Date Code of the unit. See: Worm Gear Assembly Variations Section Before removing the worm gear, notice that both bearings are oriented so the flats of the bearing are vertical. > À a PLANETARY y PINION & GEAR * Planetary Pinion Gear - This gear is attached to the Planetary Agitator Shaft and can be accessed by removing a Snap Ring. Retaining Pin removal is not needed to remove the Pinion Gear. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 - Расе 4 Kitchen Aial® 6-Quart Stand Mixer Manual LIT4176981 COMPONENT ACCESS - Accessto the Gearcase components is outlined as follows: * Remove the Transmission Cover * The entire Worm Gear assembly can be lifted by hand once the Transmission Cover has been re- moved. | * The Bevel Gearis heldon the Planetary Shaft with a Snap Ring that is located at the top of the Planetary Shaft. * This Snap Ring must be removed with Snap Ring Pliers to gain access to the Bevel Gear. * Carefully lift the Snap Ring off the shaft of the Planetary. | * Once the Snap Ring is removed, the Bevel Gear can normally be removed by hand and set on the paper towel for later inspection. e The Pin on the Planetary Shaft can now be removed with a small punch and light tapping action with a small hammer. * After the Pin has been removed place your hand under the Planetary and with your other hand push the shaft down to free the shaft from the Lower Housing. * On older Mixers or cases where abuse is sus- pected, the technician should carefully inspect the other Drive Train components. TRANSMISSION - The technician should be aware of the following changes related to the transmission. * The Transmission Cover on models produced from Mixer Serial Number WL17 to Present, utilize a Transmission Cover Gasket. * Transmission Cover Gaskets are not used on all models. | e Do not use a Transmission Cover Gasket on models that did not originally utilize the gasket. TRANSMISSION COVER EYE E TRANSMISSION COVER GASKET * Transmission gears should be packed after repair with approximately 2 ounces of #2 Grease. * Apply the 42 Grease to the Gears—do not add excessive grease to the inside of the Transmission Cover. * Torque the Phillips Screws that secure the units Transmission Cover with equal pressure on each astener and follow the torgeing sequence that follows. O 2002 KitchenAid Da TRANSMISSION COVER TORQUEING- Usett. ) following pattern when torqueing the Transmission‘ Cover Fasteners. . Looking at TOP of Transmission Cover with the Motor to the RIGHT: END AT #4 a D START AT #1 > ‘ 1 D x „” „” „” ` «” “” 9 = 2 BT S —0 Carefully inspect the condition of the fasteners and replace if galled or damaged. : Ш Be sure to use a good quality and correct siz. Phillips Screwdriver when torqueing the fasteners. Maintain an equal pressure at each fastener and do NOT over tighten. „” KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 + Раде 5 Kitch en Aid: 6-Quart Stand Mixer Manual LIT4176981 © 2002 KitchenAid DRIVE TRAIN OVERVIEW - On a mixer that is suspected of having been abused or used under extreme duty cycles, take particular care in inspecting alt of the gears before beginning reassembly. The Drive Train is lubricated with approximately 2 ounces of #2 Grease. All gears should have a light coating of this lubri- cant applied prior to reassembly. Grease collected in transmission cover should be scraped out and reapplied to the gears. e Attachment Hub Bevel Gear - After inspection place this gear in the Transmission Housing. Wipe any excess lubricant from the end that pro- trudes through the Transmission Housing. e Bevel Gear - This is the top gearonthe Planetary Shaft. The Bevel Gear is held to the Planetary Shaft with a Snap-Ring. This Snap-Ring must be removed with Snap-Ring Pliers to remove the Bevel Gear. * Worm Follower Gear - This is the bottom gear on the Planetary Shaft. The Worm Follower Gear can be removed гот Пе | N Planetary Shaft after the Bevel Gear and Retaining Pin are removed. * Worm Gear - This is the assembly that has the bearings on each end of the Worm Gear Shaft. This assembly can be lifted from the lower gearcase after the Transmission Housing is removed. When reassembling, remember to replace the Thrust Washer on the end of the Worm Section and that both brass bearings rest in the Lower Gear Case with the flats of the brass bearings oriented vertically. * Bevel Gear - The Bevel Gear should be removed from the Planetary Shaft and set on the paper towel with the other gears. To continue the Drive Train tear down and inspec- tion, the Pin on the Planetary Shaft must be driven out. Be careful when completing this step as it is pos- sible for the Planetary assembly to fall abruptly. Simply keep the punch in the hole of the shaft while the Pin is being set aside. Remove the punch after you have secured the assembly with both hands. Carefully push down to remove it from the base. Again have the paper towel available and keep the . grease away from other parts of the Mixer. J Since the Planetary Assembly is removed make your inspection and use the following two step proce- dure if disassembly is necessary. 1. Planetary Disassembly - If you see significant wear or damage use Snap Ring Pliers to remove the Retaining Clip from the Agitator Shaft. You are again reminded as in the case of the Retaining Clip that secures the Bevel Gear, wear Safety Goggles whenever usiing Snap Ring Pliers! The Pinion Gear on the Agitator Shaft can then be removed by hand. | The Retaining Pin on the Planetary Shaft must be removed to continue your inspection. This pin can usually be removed with hand pres- sure as shown below. Notice the washer under the Pin. Be sure to re- place it correctly during reassembly. The Agitator Shaft can now be removed from the Agitator Assembly and inspected or replaced as nec- essary. 2. Planetary Pinion Gear - Inspect the Agitator Shaft and Planetary for any damage. Make sure that the Lower Retaining Clip on the Agitator Shaft is in good condition. Place the Agitator Shaft into the Planetary. The Agitator Shaft should rotate smoothly once inside the Planetary. Place the Thrust Washer on the shaft and then position the Retaining Pin into the hole at the top. The Planetary Pinion Gear has a sloton the bottom that sets over the Retaining Pin. Set the Planetary Pinion Gear on the shaft cen- tered over the Retaining Pin. Using Snap Ring Pliers, install the Retaining "C" Clip to the top of the Agitator Shalt. e Worm Follower Gear Removal - The Worm Follower Gear that links to the Worm Gear Assembly can now be lifted from the bottom of the Mixer Cover. The Worm Gear Assembly, has two brass bear- ings on each end and can be lifted from the Bottom Cover with hand pressure. The collection of Gears can be cleaned with a benign Solvent like WD-40 and then inspected. Any gear showing signs of galling, nicks, cracks or noticable wear should be replaced. The (2) Worm Gear Assembly Bearings and Thrust Washers should also be replaced if noticable signs of wear are observed. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 - Page 6 Kitchen Aid 6-Quart Stand Mixer Manual LIT4176981 o | © 2002 KitchenAid WORM GEAR VARIATIONS: Since the introduction of the 6-Quart Stand Mixer there have been changes made to the Worm Gear Assembly as described below: FROM: Start of Production THROUGH: Date Code WLO3 Rear Bearing - 9703351 (.193" Beyond Flange) 1st Stage Worm Assembly - 9703699 x Front Bearing - 9703351 (.193" Beyond Flange) Thrust Washer - 9703677 OU of This Worm Gear Assembly will work with the Original and 4-Cavity Transmission Cover. FROM: Date Code WL04 THROUGH: Date Code WLOS Rear Bearing - 9703350 (.160" Beyond Flange) 1st Stage Worm Assembly - 9703466 Front Bearing - 9703570 (.160" Beyond Flange) Thrust Washer - 9703677 a — = OU This Worm Gear Assembly will work with the Original and 4-Cavity Transmission Cover. | ; FROM: Date Code WLO9 THROUGH: Date Code WL45 Rear Bearing - 9703570 (.160" Beyond Flange) 1st Stage Worm Assembly - 9703466 Front Bearing - 9703560 (.160" Beyond Flange) 3 - Piece Roller Thrust Washer - 9703445 Le ч = RE La + This Worm Gear Assembly will NOT work with the Original Style Transmission Cover. Requires the 4-Cavity Transmission Cover. The 4-Cavity Cover can be identified by looking inside the Cover. Next to the center Bearing is a number (1-4) molded into the Cover. их. 7 e FROM: Date Code WL46 THROUGH: Present Rear Bearing - 9703570 (.160" Beyond Flange) 1st Stage Worm Assembly - 9706590 Front Bearing - 9703560 (.160" Beyond Flange) 3 - Piece Roller Thrust Washer - 9703445 Es PO — Gear marked "60" E =. on this side. This Worm Gear Assembly will NOT work with the Original Style Transmission Cover. Requires the 4-Cavity Transmission Cover. The 4-Cavity Cover can be identified by looking inside the Cover. Next to the center Bearing is a number (1-4) molded into the Cover. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 © Page 7 j KitchenAid" 6-Quart Stand Mixer Manual LIT4176981 >. BOWL SUPPORT and COLUMN - If service is “ needed on the Bowl Support and Column the Lower Cover should be removed from the Column. The Motor will have to be removed to gain access to the (3) 8-32 x 5/8" Phillips Screws that hold the Lower Gearcase to the Column. В Also remove the Base from the Column and Bowl Support Assembly. This is accomplished by removing the (3) 1/4 -20 x 3/4" Phillips Screws from the bottom of the Base. ~ Remove the lower "C" Clip and the Bowl Support can now be removed. Later models may use a lock nut instead of a clip. STAND MIXER BASE, BOWL SUPPORT AND COLUMN BOWL LIFT ARM DRIVE PIN or _ "С" СЦР — — — J Soren BOWL LIFT ROD __ Jos LIFT SPRING HANDLE WASHER "CC" CLIP or LOCK NUT SOFORT cou . ASSEMBLY LATCH SPRING REASSEMBLY - Slide the Bow! Support onto the Column and allign the Bowl Lift Rod through the hole on the inside of the Bowl Support. Position the Bowl Lift Handle so that the Bowl Lift Rod is extended fully through the hole of the Bowl Support. . Set the Spring on the Bowl Lift Rod, followed by the ) Washer. Using Pliers, lock the "C" Clip to the end of the Bowl Lift Rod. Always rotate the Bowl Lift Handie to test the operation of the Bowl Lift Arm. KP - KT - KD 6-Quart Stand Mixer Manual - © 2002 KitchenAid PEDESTAL. - The rubber feet imbedded in the Pedestal should always be checked to insure that the Mixer has a solid foundation with the work surface. REPLACING BOWL AND LIFT ARM - Remove the upper "C" Clip, then slide the Bowl Lift Rod out of the Bowl Lift Arm. Remove the Pin (Screw on later models). Pull Bowl Lift Handle out until tha Arm can be removed. Reverse Assembly steps to reassemble the Bowl Lift Mechanism. FINAL INSPECTION - Before repackaging the Stand Mixer after a Bowl Support and Pedestal Repair check the following: e Confirm that Base, Bowl Support and Column Assembly are soil free. Pay particular attention to the (5) Rubber Feet imbedded in the base clean if neces- sary with a mild soap solution. e Check the tightness of all Phillips Screws used to fasten the Column to the Base and to the Lower Gear case. Retighten if necessary. NOTE: 1/4" Screws are used to attach the Base to the Column. Use a LARGE Phillips Screwdriver. ® Confirm that both "C" Clips (or Lock Nuts) are seated properly and are in good condition. » Confirm the movement of the Bowl Support by lifting the Bowl Lift Handle. PRODUCT IDENTIFICATION - The Model and Serial Number Identification Tag are located at the bottom of the Stand Mixer Base. This information should always be recorded by the repair technician for future reference. | LIT4176981 + Page 8 6-Quart Stand Mixer Manual LIT4176981 MOTOR REPLACEMENT - The Motor on the KitchenAid Stand Mixer can be replaced by using the method outlined below. Make sure that the Mixer is disconnected from the AC Supply before beginning the following procedure that begins afterthe Trim Band and Upper Cover have been removed. IMPORTANT - There are (3) versions of the Lower Gear Case that require different Motors. HALL EFFÉCT ns CABLE STR MOTOR SHAFT MOTOR | SEAL THERE ARE THREE STYLES OF LOWER GEAR CASES LOWER GEAR CASE 1. Remove the (4) 8-32 x 5/8" Phillips Screws that secure the Transmission Cover and carefully remove the cover and set aside. The Transmission Cover contains Grease, so avoid contact with the Mixer and other components! 2. Remove the (2) 8-32 x 5/8" Phillips Screws that secure the Control Assembly to the Lower Cover. 3. Remove the (2) Black Motor Leads and the Grey Hall Effect Cable from the Mixer Control Assembly. 4. Remove the (2) 8-32 x 5/8" Phillips Screws that secure the Motor to the Lower Cover. 5. The Motor can now be removed for inspection or replacement. Be sure to remove and save the Grey Hall Effect Sensor Cable from the original Motor for use with the Replacement Motor. Be sure that the Motor Shaft Seal (9706247) is in place before setting the replacement motor into the Base of the Transmission. Before tightening motor screws and transmission cover screws—push motor forward to ensure shaft seal is seated. Hold motor in place and tighten all screws. KitchenAid" © 2002 KitchenAid 6-QUART STAND MIXER MOTOR REPLACEMENT TABLE DOMESTIC MODELS The correct replacement part number is determined by the production date of the mixer. * PRODUCTION DATE - WKO8 (Production Start-up) through WK50 * LOWER HOUSING DESCRIPTION - Narrower Rib opening under Motor. * TRANSMISSION COVER GASKET - No Gasket Used. PROD. IST STAGE GEAR & WORM ASSEMBLY - 9703699 * MOTOR FOR SERVICE - 9706251 or 9703571 (Requires NEW Lower Housing) PRODUCTION DATE - WKSI through WLO3 * LOWER HOUSING DESCRIPTION - Wider Rib opening under Motor. * TRANSMISSION COVER GASKET - No Gasket Used. « PROD. IST STAGE GEAR & WORM ASSEMBLY - 9703699 * MOTOR FOR SERVICE - 120V (All) - 9706251 « PRODUCTION DATE - WLO4 through WLI6 * LOWER HOUSING DESCRIPTION - Wider Rib opening under Motor. TRANSMISSION COVER GASKET - No Gasket Used * PROD. IST STAGE GEAR & WORM ASSEMBLY - 9703446 * MOTOR FOR SERVICE - 120V (AI) - 9706251 PRODUCTION DATE - WLI7 through WL45 * LOWER HOUSING DESCRIPTION - Wider Rib opening under Motor. * TRANSMISSION COVER GASKET - Gasket adhered to Transmission Cover. * PROD. IST STAGE GEAR & WORM ASSEMBLY - 9703446 * MOTOR FOR SERVICE - 120V (All) - 9706251 * PRODUCTION DATE - WL46 through Present * LOWER HOUSING DESCRIPTION - Wider Rib opening under Motor. * TRANSMISSION COVER GASKET - Gasket adhered to Transmission Cover. * PROD. IST STAGE GEAR & WORM ASSEMBLY - 9706590 * MOTOR FOR SERVICE - 120V (Professional) - 9703585 120V (Other) - 9706548 Replacement Motor part numbers for Export Models are provided in the Export Model Part Number Table. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 + Page 9 N \ Kitchen Aijiel® 6-Quart Stand Mixer Manual LIT4176981 © 2002 KitchenAid SPEED CONTROL ASSEMBLY SERVICE - The KitchenAid Stand Mixer utilizes a Solid State Speed Control that mounts to the Lower Gearcase with (2) 8- 32 x 5/8" Phillips Screws. This component is not servicable oradjustable and will have to be replaced if it fails mechanically or electrically. SOLID STATE “CONTROL BOARD KEEP THE SOLID STATE CONTROL BOARD AWAY FROM TRANSMISSION GREASE TESTING THE CONTROL ASSEMBLY - The Control Assembly should first be tested with the Mixer in the "Off" position and disconnected from the AC Mains. NOTE: Before you begin this test check the condi- tion of the Stand Mixer Power Cord and replace it if it is damaged or defective. * Simply move the Handle from the "Off" position and observe each of the six speed detents. * These should have a distinct locking action in each of the six running positions. * Now return the Mixer to the "Off" position and plug it into the AC Supply. The Mixer should not run in the "Off" position. NOTE: The mixer must be in the "Off" position for 5 seconds - in order to Reset. Carefully move the Control to the first "Stir" speed and confirm operation. Remember that ALL Speeds have a "Soft Start" feature that automatically starts the Mixer at a slower speed to help prevent "Splash Out". * You should observe a slight pause as you move "from each speed. Confirm the operation at each of the six (Stir -2-4-6-8-10) detents of the Control. REPLACING THE SPEED CONTROL - lf replace- ment of the Control Assembly is necessary, make sure that the Mixer is unplugged from the AC Mains and after removing the Motor Housing, remove the (2) 8-32 x 5/8" Phillips Screws that hold the Control Assembly to the Lower Cover. SOLID STATE SPEED CONTROL BOARD CONTACTS HALL 737 EFFECT | e CABLE Le | P5 I UNSWITCHED MOTOR 2 naaa P3 NEUTRAL mum P1 LINE me P2 MOTOR 1 mua C - ON/OFF NC - ON/OFF NOTE: Refer to the wiring diagrams for wiring details on specific 6-Quart Stand Mixer models. Check the Control Assembly wire leads first and tighten them if a loose or broken connection is noted at the Spade Lug Connectors. Retest before replacing Control Board—then if the fault persists: (Be sure unit is unplugged!) * Verify that wire leads are identified relative to their position on the Control Board. (Label if necessary.) * Using Needle Nose Pliers remove the (2) Motor Leads, the (2) Power Cord Leads and the Hall Effect Sensor Connector from the Circuit Board.. Using the replacement Control Assembly, reconnect these leads to the appropriate points on the Circuit Board. * Make sure that the Spade Lugs fit tightly. Mount the new Control Assembly on the Lower Gearcase using the (2) 8-32 x 5/8" Phillips Screws. | * Replace the Motor Housing and then repeat the Test Procedure outlined above to confirm proper op- eration. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 + Page 10 6-Quart Stand Mixer Manual LIT4176981 Kitchen Aid' © 2002 KitchenAid Co 4 N Wiring Diagram 6 Quart Stand Mixer Domestic and Canadian Models: — KP, KT, ED, MOTOR AKP, 4KT and 4KD HALL Serial Numbers: WKOS - WL45 SENSOR 1 ON i Nerd он” CONTROL BOARD Il HALL —=—1 | : BLACK A | ееест [$ |-———=о Р5 mes. a UNSWITCHED BLACK MOTOR 2 1 P3 NEUTRAL WHITE BLACK P1 LINE mme P2 MOTOR 1 munms— C-ON/OFF — STACK NC - ON/OFF HE BLACK OFF GROUND CHASSIS KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 - Расе 11 ВЕ 6-Quart Stand Mixer Manual LIT4176981 Kitchen Aia® Wiring Diagram 6 Quart Stand Mixer Domestic and Canadian Models: KP, KT, KD, 4KP, 4KT and 4KD Serial Numbers: WL46 - Present ON CONTROL BOARD BLACK © 2002 KitchenAid HALL O EFFECT | e [= = === = CABLE MOTOR 2 = P4 | BLACK WHITE NEUTRAL ME- P3 MOTOR 1 mm BLACK P2 LINE mu PS BLACK GREEN OFF GROUND CHASSIS KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 ( N MOTOR HALL EFFECT SENSOR di E BLACK * Page 12 KitchenAid" 6-Quart Stand Mixer Manual LIT4176981 © 2002 KitchenAid Wiring Diagram 6 Quart Stand Mixer For: International Models: | SKP, SKP and 9KP MOTOR Serial Numbers: All HALL EFFECT SENSOR. f ON | I Nr E L CONTROL ! B OA RD BLACK 1 | | BLACK HALL 8 I EFFECT | e | == w= m= mm mm CABLE | MOTOR 2 mE——JBEACK N P4 J LINE mu BROWN P5 BLUE NEUTRAL IB ВЕ РЗ FE) MOTOR 1 BR BLACK Р2 BROWN ] BLUE NC | BLUE АА IN-LINE | FILTER ON / OFF CONNECTORS SWITCH GREEN or GREEN YELLOW | WHITE or BLACK or BLUE BROWN OFF POWER GROUND CHASSIS CORD J KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 » Расе 13 KitchenAid® 6-Quart Stand Mixer Manual LIT4176981 © 2002 KitchenAid - PROBLEM GUIDE - The following list of Service PROBLEMS are reviewed with the likely CAUSE and most - “probable CORRECTION provided below to assist the Professional Mixer Technician with the diagnosis and corrective action required to make a successful repair. * PROBLEM: Repeated Worm Gear failures. * CAUSE: Galied Worm Gear. * CORRECTION: Replace Worm Gear and Attachment Gear. * PROBLEM: Switch lever clicks, but Mixer will not run or buzz. * CAUSE: Open electrical circuit. Faulty Plug. Faulty attachment cord. Loose wire leads. Open TCO. * CORRECTION: Determine Open Contact and replace or repair. * PROBLEM: Mixer will not shut off with ON/OFF Switch * CAUSE: The Mixer ON/OFF Switch is closed. Bad Switch Lever. * CORRECTION: Replace Control Assembly. * PROBLEM: Beater strikes Bowl or too much clearance between Beater and Bowl.. * CAUSE: Adjusting screw at rear of Column improperly set. * CORRECTION: Turn the adjusting screw slightly to right or left to adjust clearance. Clearance should be 1/ 16" the thickness of a dime. * PROBLEM: Planetary turns--but Beater does not revolve. | e CAUSE: Pinion Gear or Gear Drive Pin is broken. « CORRECTION: Remove Planetary and replace Pinion Gear or Gear Drive Pin. * PROBLEM: Mixer runs with raspy, bumpy noise at Planetary. * CAUSE: Lower Gear Case internal Ring Gear teeth are worn or broken. e CORRECTION: Remove the Planetary and Gear Case Cover. ) The complete Gear Case Assembly must be replaced. e PROBLEM: Switch knob clicks, but Mixer will not run or buzz. * CAUSE: Open Electrical Circuit. * CORRECTION: Progressively disassemble the Speed Control mechanism, plus the motor and perform the following checks until the open circuit is found. Look for: - Faulty plug. - Faulty Attachment Cord. - Bad connection in Speed Control . - Bad connection between Field and Cord. - Open circuited Armature.- Open circuited fFeld. - Correct brush orientation. - Open TEO Fuse. * PROBLEM: Electrical shock to operator. * CAUSE: Bare lead touching inside of housing. e CORRECTION: Pull the plug, turn the switch on and check for a ground with a Test Lamp or Volt Meter. Touch one prong of the test lamp to a prong of the plug and the other prong to an unpainted spot on the housing. If the lamp lights the mixer is grounded. Examine all the wiring in the order of its accessibility, until the grounded lead is found. If mixer has radio interference condenser wired between stator screw and power cord - remove and discard. * PROBLEM: Bad sparking at motor brushes. * CAUSE: Worn motor brushes. * CORRECTION: Replace Motor. ‚ * PROBLEM: Faulty Armature or shorted Motor Field. * CAUSE: Motor has internal short. * CORRECTION: Replace Motor. e PROBLEM: Mixer runs on one Speed only. * CAUSE: Speed control. * CORRECTION: Replace the Control Board } PROBLEM: Mixer runs for a short time and then shuts off. * CAUSE: Hall Effect is bad. e CORRECTION: Replace the Hall Effect. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 « Page 14 6-Quart Stand Mixer Manual LIT4176981 ; itchenAid" 6 Quart Stand Mixer Export Parts © 2002 KitchenAid YOLTS - COUNTRY | MODEL NUMBER | PRODUCTION LOWER HOUSING | TRANSMISSION CONTROL PRODUCTION & | PRODUCTION 1ST POWER RFI DATE CODES DESCRIPTION COVER GASKET SUB-ASSEMBLY {| SERVICE MOTOR | STAGE GEAR AND CORD FILTER WORM ASSSEMBLY 230V - Australia 5KP2670A WLI8 - WL37 {Shorter transmission | Gasket adhered to 9703352 9706034 9703446 9703565 9703582 (Early) mounting surface. | transmission cover. (230Y, DNA) (U98 - 8 tooth) | (53 tooth Ist stage | (2 Receptacle (2 Tab and 2 (.260" to pads.) gear) Terminals) Receptcle Terminals) 230V - Australia SKP2670A WL38 - Present {Shorter transmission | Gasket adhered to 9703352 9706034 9703446 9706064 9706073 (Late) mounting surface. | transmission cover. (230V, DNA) (U98 - 8 tooth) — (53 tooth Ist stage (1 Tab and (1 Tab and 3 (-260" to pads.) | gear) | Receptacle Receptacle Terminals) Terminals) 230V - International SKP2670E WLI8 - Present | Shorter transmission | Gasket adhered to 9703352 9706034 9703446 9703564 9703582 mounting surface. | transmission cover. (230Y, DNA) (U98 - 8 tooth) ](53 tooth Ist stage | (2 Receptacle (2 Tab and 2 (:260" to pads.) gear) Terminals) Recptecle Terminals) 110V - Taiwan 8KP WL21 - Present [Shorter transmission | Gasket adhered to 9706052 9706251 9703446 9706065 9706073 mounting surface. | transmission cover. | (100-110V, DNA) | (U98 - 8 tooth) §(53 tooth Ist stage (1 Tab and (1 Tab and 3 (:260" to pads.) | | gear) | Receptacle Receptacle В Terminals) Terminals) 100V - Japan MW WLI8 - Present. {Shorter transmission | Gasket adhered to 9706052 9706035 9703446 9706050 9703582 mounting surface. | transmission cover. | (100-110V, DNA) | (U98 - 8 tooth) {(53 tooth Ist stage | (2 Receptacle (2 Tab and 2 (-260" to pads.) gear) Terminals) Receptecle Terminals) NOTE - Refer to Parts Manual for Ordering Information. KP - KT - KD 6-Quart Stand Mixer Manual - LIT4176981 + Page 15
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