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KITCHENAID

Stand Mixer Service Manual LIT4177310-C 2005 KitchenAid

Appendix F

STAND MIXER SERIAL NUMBERS

SERIAL NUMBER

W

H

03

01234

MANUFACTURING DIVISION

W = Greenville, OH

YEAR CODE ( See Below )

WEEK MANUFACTURED CODE (See Below )

SERIAL NUMBER CODE ( See Below )

YEAR CODE

The single position that represents the year of manufacture follows the manufacturing Division. This coding structure
would continue to be recycled every thirty (30) years following the example below.

0 1980 - 2010 - 2040

X 1990 - 2020 - 2050

K 2000 - 2030 - 2060

1 1981 - 2011 - 2041

A 1991 - 2021 - 2051

L 2001 - 2031 - 2061

2 1982 - 2012 - 2042

B 1992 - 2022 - 2052

M 2002 - 2032 - 2062

3 1983 - 2013 - 2043

C 1993 - 2023 - 2053

P 2003 - 2033 - 2063

4 1984 - 2014 - 2044

D 1994 - 2024 - 2054

R 2004 - 2034 - 2064

5 1985 - 2015 - 2045

E 1995 - 2025 - 2055

S 2005 - 2035 - 2065

6 1986 - 2016 - 2046

F 1996 - 2026 - 2056

T 2006 - 2036 - 2066

7 1987 - 2017 - 2047

G 1997 - 2027 - 2057

U 2007 - 2037 - 2067

8 1988 - 2018 - 2048

H 1998 - 2028 - 2058

W 2008 - 2038 - 2068

9 1989 - 2019 - 2049

J 1999 - 2029 - 2059

Y 2009 - 2039 - 2069

WEEK MANUFACTURED CODE

Two positions represent the week (00 to 52) of the year. The first Monday of the calendar year will begin with week 01.
Small production products can use 00 for the week if authorized by Corporate Information Services.

SERIAL NUMBER CODE

The assigned serial number will begin with 01001 or 10001 and will be incremented by one for each unit produced until
99999 which will revert to the beginning assignment. Serial numbers may be sequenced through several model numbers.

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Summary of Contents for KSM110

Page 1: ...SERVICE MANUAL for KITCHENAID STAND MIXER Models K45SS KSM75 KSM90 KSM103 KSM110 KSM150 KSM151 K5SS KSM5 KSM50P KSMC50 KPM5 KPM50 KP50P Printed in U S A September 2005 LIT4177310 C ...

Page 2: ...uring service procedure ELECTRICAL CONSIDERATIONS The workplace for the stand mixer will have properly grounded AC outlets that adhere to all Local Electrical Codes that are applicable at the time of 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 procedur...

Page 3: ...shooting the Bowl Lift Assembly 30 APPENDIX SUBJECT A Tools Required for Stand Mixer Service B Problem Solving Quick Reference Guide C Domestic Model Wiring Diagram D International Model Wiring Diagram RF Filter E International Model Wiring Diagram Bowl Interlock RF Filter F Stand Mixer Serial Number Codes Introduction All KitchenAid Stand Mixers are well designed and carefully built Normally they...

Page 4: ...open about 40 volts RMS is applied to the motor and about 80 volts is applied when either contact is closed and the other is open GENERAL INFORMATION Normal Performance The KitchenAid Stand Mixer is powered with a universal motor which will operate on 50 or 60 hertz alternating current only The Voltage of the power supply should be within 10 volts either way of the voltage stamped on the mixer tri...

Page 5: ...this grease will not require lubrication for years The motor bearing and the beater shaft bearing are oil impregnated The rear motor bearing has a felt washer which has been presoaked in oil The front motor bearing in the mixer housing is a ball bearing SECTION 1 DISASSEMBLY OF THE GEARCASE AND PLANETARY A All solid state KitchenAid mixers have the same motor and control parts and the gears in the...

Page 6: ...r turn the unit upside down in a padded cradle Loosen the set screw with a screwdriver Fig 3 Using a drift punch and hammer drive out the hinge pin Fig 4 and lift the pedestal off the gearcase bottom cover E To remove the planetary first remove the drip ring Use a screwdriver on the upper edge of the drip ring and gently tap the screwdriver to remove the drip ring Fig 5 PAGE 3 FIG 1 Fig 1 The end ...

Page 7: ... power cord with the Heyco strain relief used on older models use a pair of pliers to squeeze the strain relief while pulling up Fig 9 Reverse this procedure to reinstall it G To remove the bottom cover from the gearcase motor housing unscrew the five 5 10 24 special screws Fig 10 These screws hold the internal gear into the bottom cover Next remove the four 4 filister head screws from the bottom ...

Page 8: ...r area of the housing Fig 12 While lifting up on the center shaft use a screw driver to gently pry the bottom cover from the housing H Remove the attachment hub bevel gear from the gearcase motor housing This gear is removed by simply pulling it out of the attachment hub Fig 13 The gear will clear the worm of the motor s armature shaft and should be easy to remove Note For clarity the pictures in ...

Page 9: ...sconnected from the A C mains Remove the end seal and disconnect the phase control flag terminals from the control board Fig 16 Unhook the control board spring at the bottom of the control board Fig 17 Unlock the two lock nuts on the control board a unscrew the two adjusting screws The mixer control board can now be removed a set aside for later evaluation Fig 18 Fig 14 Removal of the cord flag te...

Page 10: ...lly pry off the governor assembly Fig 21 Do NOT bend Remove the governor drive pin and lay it aside so it will not be lost Fig 22 Fig 18 Mixer housing with end seal and control board removed Fig 19 Removal of the phase control Triac from the bearing bracket Fig 20 Phase control or triac shown removed in lower center Fig 21 Needle nose plier used to pry governor off the motor shaft Fig 22 Governor ...

Page 11: ... control link assembly The speed control link and cam assembly can be removed by pulling it out of the gearcase motor housing Fig 25 E Unscrew and remove the two 10 24 nuts Fig 26 Remove the bearing bracket Fig 27 Now remove the motor stud sleeve from the stator stud Fig 28 Fig 24 The pivot screw and tension washer are removed with a phillips screwdriver Fig 25 Removing the speed control spring fl...

Page 12: ...ift punch through the attachment hub opening and gently tap the armature back through the stator using a block of wood to protect the shaft Fig 30 Remove the worm end bearing washer and the fan end spacer washer Fig 27 Bearing bracket being removed after two 10 24 nuts have been removed Fig 28 The motor stud sleeve is shown being removed after bearing bracket removal Page 9 Fig 29 the brush holder...

Page 13: ...tor out reach into the motor housing and grasp the stator and pull it out Caution Do not nick or damage the copper coil wires on the motor I To remove the brush holder it will be necessary to remove the other stator stud Under the stator studs are 10 24x1 4 cup point screws To remove the set screws use a 3 32 Allen wrench older models may use a flat screwdriver Fig 33 Fig 33 Removing the brush hol...

Page 14: ...rush holder Square brushes are no longer available Brushes with chamfered edges will fit into square brush holders C Test the stator with an ohmmeter Fig 35 Set the ohmmeter on the 1X scale and be sure it is set at zero ohms when shorting the test leads Fig 35 Test the two stator coils with an ohmmeter set on low scale In upper coil connect one ohmmeter lead to the red wire and the other to the bl...

Page 15: ... armature to a electric motor repair shop and let them test it If it is not in good condition replace it with a new one G Check the ventilating fan Straighten the blades if they are bent Fig 38 If the armature is replaced move the washers from the old armature to the corresponding end of the new armature Add one drop of Locktite to the outer race of the ball bearing and install the armature in the...

Page 16: ...d properly and proper amount of spacing washers placed at the rear there should only be a perceptible amount of end play to assure free operation of the armature If there is too much end play add another thin washer To do this remove the bearing bracket and add the washer to the armature shaft then reassemble the bearing bracket into the gear case motor housing K If the old brushes are more than 5...

Page 17: ...e tension washer M If the spring in the governor is rusty replace the governor assembly Place the governor drive pin in the armature shaft With drive pin at top of the shaft place the governor on the shaft with the keyway up Fig 45 Push the governor onto the shaft as far as it will go NOTE Never attempt to take the governor apart The purpose of this picture is to show where governor seats on drive...

Page 18: ...e control board on the bearing bracket Turn in the screws until 3 8 of the screw remains Have both screws turned in evenly so the opposite end of the control plate rests squarely on the extensions of the bearing bracket With long nose pliers hook the control plate spring into the hole on the bottom part of the control plate Fig 50 Fig 50 The control plate spring being grasped with pliers and posit...

Page 19: ...t have a washer so push it in as far as it will go Fig 51 The attachment hub bevel gear being pushed into the attachment hub bearing from inside the gearcase C With a phillips head screwdriver remove the three 10 24x7 16 phillips filister head screws and lock washer assemblies and lift up on the worm gear bracket bearing and pin assembly to remove Fig 52 Fig 52 Worm gear bracket bearing and pin as...

Page 20: ...shaft opposite the O ring into the bottom cover Fig 54 Push shaft upward and insert the pin Fig 53 Center pin in shaft and lower shaft into gear assembly Turn shaft until pin seats in gears and gears and shaft turn together Wipe all excess lubricant from bottom of vertical shaft on O ring H Check the worm gear and pinion gear Fig 56 Fig 56 Check worm gear and pinion before reassemble To replace th...

Page 21: ...or trouble with this assembly Fig 58 L Use 6 oz of Benalene 930 2 lubricant and lubricate around the gears when filling the gear case This product is available through your nearest authorized distributor Try to keep the bearing in the top of the gear case open It will help when assembling the bottom cover and gearcase motor housing together M Clean the gasket surface of the gear case Place a new g...

Page 22: ...r 10 24x1 fillister head screws into the bottom cover making sure they are tight Fig 63 18 20in lbs Q Place a small amount of Benalene 930 2 lubricant on the teeth of the internal gear R Check the condition of the planetary If there is any play in the agitator shaft and the bearing not shown replace the planetary and the shaft Fig 63 Secure the four fillister head screws The bearing is an integral...

Page 23: ... planetary on the shaft and push it down Line up the holes in the planetary and shaft It may be necessary to use an awl or pointed punch to align the holes Fig 67 Fig 67 A pointed punch can be used to align the holes of the shaft with the planetary U Drive the groove pin into the shaft Fig 68 There should be a very small amount of end play Fig 68 Carefully drive the groove pin into the shaft of th...

Page 24: ...e foot that will go into the hole and twist the new foot in or tap with a mallet Be sure all feet are penetrating the pedestal an equal distance to maintain a level foundation C If the bowl screw cap has worn out be sure to replace it To remove the old cap take out the three 10 24x1 2 flat head screws and lift out the old cap Put the new cap in place and screw it down tight with the three screws F...

Page 25: ...76 hooked over the control plate spring will keep the spring accessible not allowing it to snap between the upper and lower gear case and become lost Fig 76 Hold the control plate spring with a cloth to retain access for reassembly A After installing new parts in the control unit the control plate must be adjusted so that all speeds will be the same as they were when the mixer was new B Make sure ...

Page 26: ...p adjusting the screw at the bottom until the right speed is reached There is no locking of this screw Fig 79 Adjusting screw at the bottom of the control plate for speed 6 F Try all mixer speeds from stir to 10 If stir and 6 are properly adjusted the other speeds should automatically be correct If there is a definite change in speed between 8 and 10 the control unit is correctly adjusted G A digi...

Page 27: ...e mounting screws in or out during the locking process Recheck speeds after locking the nuts and if a fine adjustment is needed it can be done without loosening the locking nuts G Place the trimband Fig 81 on the gearcase motor housing and with the two 6 32 x 3 16 screws fasten it to the housing Tuck in all the wire leads insure no wires are pinched and place the end cover on the end of the motor ...

Page 28: ...ff the bottom cover Fig 85 KSMC50 models use 5 16 18 x3 4 hex head screws Fig 84 Four round Phillips head screws must be removed to replace the bowl support assembly D With the bowl lift assembly on the bench lay it on its back and then remove the four 5 16 18 x 3 4 round head screws Fig 86 from the base and set the base aside E Remove the two 10 24x1 2 flat head screws from the bowl support Fig 8...

Page 29: ...h with the arm Fig 91 Be sure the pin is tight Check the beater height adjusting screw replace if missing Fig 91 Fig 91 The roll pin is driven in until it is almost flush with the arm While the adjusting screw is replaced from this side it is adjusted from the other I Slide the new bowl support assembly on the column Fig 88 Place the bowl lift bracket in place and screw in the two 10 24x1 2 flat h...

Page 30: ... repair To remove the bowl spring latch unscrew the two 10 24 x 1 4 screws Replace with new if rusted or broken The function of the bowl spring latch is to hold down the rear of the bowl Hold the bowl spring latch on the bowl support and insert the two 10 24 x 1 4 round head screws into the bowl support and tighten Fig 87 Fig 95 Two 10 24 x 1 4 screws hold the bowl spring latch in place M Place th...

Page 31: ... 1 16 clearance between the bowl and beater B If too much clearance between beater and bowl adjust the screw in until the 1 16 beater to bowl clearance is met If unit has no adjusting screw use a mallet to tap both sides of the yoke up evenly until the 1 16 beater to bowl clearance is met If beater to bowl clearance is not met you will have to change the bowl support NOTE The 1 16 clearance can be...

Page 32: ...KITCHENAID Stand Mixer Service Manual LIT4177310 C 2005 KitchenAid APPENDIX ...

Page 33: ...g Flat Screwdriver Short Flat Screwdriver 3 8 Hollow Shank Nut Driver 5 32 Drift Punch Volt Ohm Meter Watt Meter Electronic Speed Measuring Device 2 Phillips Screwdriver Cradle Make your own from wood cushion with cloth to avoid damage to finish of mixer A B C D E E A 7 B 11 C 3 D 1 1 2 E 45 Degree Angle F 1 1 2 G 3 4 Plywood 8 x 11 F G Other Helpful Tools 1 2 Socket Awl or Pointed Punch ...

Page 34: ...s beater does not revolve Pinion gear drive pin broken Remove planetary and take off the pinion gear Replace the drive pin Mixer runs with a raspy bumpy noise Bottom cover internal gear teeth Remove the planetary bottom cover at the planetary worn or broken NOTE The complete bottom cover assembly must be replaced Mixer runs with bad vibration rumbling Faulty governor Replace the governor noise and...

Page 35: ...CREWS 4 K5 4 6 GEAR CASE RETAINING SCREWS 9 18 20 LOCK WASHER UNDER 1 GEAR CASE MOUNTING SCREW K45 REAR LOCK WASHER UNDER 1 BASE MOUNTING SCRW KSMC50 ONLY LOWER GEAR CASE AND COLUMN MOUNTING SCREW 4 K5 125 150 AGITATOR SHAFT BEATER DRIVE PIN 1 KSMC50 30 40 GUARD PIN 1 KSMC50 HAND TIGHT CIRCUIT BREAKER NUT 1 HAND TIGHT HEAD LOCK PIVOT SCREW 1 K45 18 23 HINGE PIN LOCKING SCREW 1 K45 24 33 STATOR RET...

Page 36: ...e See item V Section 4 easily moved back and forth with a twisting effort it is satisfactory If it binds replace the planetary If it checks okay recheck the mixer without it If the mixer still uses excessive watts it must be disassembled and the other bearings checked Loud rumbling or howling noise Worn spherical bearing on the Remove bearing bracket and replace end of the armature shaft Worn arma...

Page 37: ...st lamp to a prong on the plug on the power cord and the other lead to an unpainted surface on the motor housing If the lamp lights the mixer is grounded Examine all the wiring in the order of its accessibility until the grounded wire is found If the mixer has a radio interference condenser wired between a stator lead and power cord lead remove it from the circuit Mixer will not run although switc...

Page 38: ...tary on Stir Speed If using a digital tachometer at the attachment hub set the reading to 40 64 R P M on Stir Speed Adjust this screw to give 175 180 R P M at the planetary for speed 6 after Stir Speed has been adjusted If using a digital tachometer at the attachment hub set the reading at 141 170 R P M Phase Control Brush Holders Control Plate Circuit Breaker Model KSMC50 Only ...

Page 39: ...ive 60 R P M at the planetary on Stir Speed If using a digital tachometer at the attachment hub set the reading to 40 64 R P M on Stir Speed Adjust this screw to give 175 180 R P M at the planetary for Speed 6 after Stir Speed has been adjusted If using a digital tachometer at the attachment hub set the reading at 141 170 R P M Phase Control Brush Holders Control Plate ...

Page 40: ...s equally to give 60 R P M at the planetary on Stir Speed If using a digital tachometer at the attachment hub set the reading to 40 64 R P M on Stir Speed Adjust this screw to give 175 180 R P M at the planetary for speed 6 after Stir Speed has been adjusted If using a digital tachometer at the attachment hub set the reading at 141 170 R P M Phase Control Brush Holders ...

Page 41: ...3 C 1993 2023 2053 P 2003 2033 2063 4 1984 2014 2044 D 1994 2024 2054 R 2004 2034 2064 5 1985 2015 2045 E 1995 2025 2055 S 2005 2035 2065 6 1986 2016 2046 F 1996 2026 2056 T 2006 2036 2066 7 1987 2017 2047 G 1997 2027 2057 U 2007 2037 2067 8 1988 2018 2048 H 1998 2028 2058 W 2008 2038 2068 9 1989 2019 2049 J 1999 2029 2059 Y 2009 2039 2069 WEEK MANUFACTURED CODE Two positions represent the week 00...

Page 42: ...uring service procedure ELECTRICAL CONSIDERATIONS The workplace for the stand mixer will have properly grounded AC outlets that adhere to all Local Electrical Codes that are applicable at the time of 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 procedur...

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