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KitchenAid KSMC50 Service Manual
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KitchenAid KSMC50 Service Manual

KitchenAid KSMC50 Service Manual

Solid state
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SERVICE
MANUAL
KitchenAid
MIXERS
K45SS
SOLID
STATE
KSMC50
K5SS
KSM90
ST. JOSEPH
MICHIGAN
INC.
FOW
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Summary of Contents for KitchenAid KSMC50

  • Page 1 SERVICE MANUAL KitchenAid MIXERS K45SS SOLID STATE KSMC50 K5SS KSM90 ST. JOSEPH MICHIGAN INC.
  • Page 2 TOOLS REQUIRED taste *34819 SPEED TOOL '4164839 CRADLE—MAKE FROMwooot CUSHION WITH CLOTH TO PUNCH OR THRU A'"IO FINISH PHILLIPS SPALL SCREWDRIVER RAWHIOE watts NEEDLE NOSE...
  • Page 3 INTRODUCTION All KitclArenAi mixers arewell designedand carefullybuilt Nomal*' they will give continualuse year ater year without requiring semee attention, Carefulrecords have been maintainedover a period years to determineand correct,through improveddesign,any troublesthat mightpossbly develop.An efforthasbeen madein preparation manual to cover them all. CAUTION: Always remove power cord from edectrical out}etbefore disassembly...
  • Page 4 KITCHENAID MODELS K45SS KSM90 K5SS KSMC50 INDEX PAGE SECTION Disassembly OfGear Case and Planetary Disassembly ot Motor and Control Unit Repairs to Motor and Control unlt Repairs to Geer Case and Planetary . 18 Repairs to Pedestal . 19 Adlustment OfControl Unit...

  • Page 5: General Information

    NORMAL PERFORMANCE have been exceeded the speed of the motor will drop The KitchenAid mixer is powered with a universal motor to meet the torque requirements of the given load which wilt operate on 50 or 60 hertz alternating current Speed is controlled by the governor and control plate only.Thevoltageadthepowersupplyshouldbe within...
  • Page 6 DISASSEMBLY OF GEAR CASE AND PLANETARY A. All solid state KitchenAid mixers have the same motors and coatrooparts and the gear in the gear case are abke with one exception. Planetary parts are all the same except that some earty production...
  • Page 7 If necessary to remove tho pedestal from the gear case bottom cover, loosen the setscrew with a screwdriver (Fig,71 With a drift punch ard hammer, drive out the hinge pin (Fig. 8) and lift the pedestal off the gear case bottom cover. Remove the 46-32 x 3/8' oval head screw and take off tie end cover (Fig 5).
  • Page 8 Fig. 10 Toremovethe eotdat'"d plugfromthe bottomcover, To rernove the bottom cover from the gear case use a pair 01heyco pliers and squeeze the heyco and motot housing, unscrew and remove the five strain relief and pull out IFig 13}. To replace special screws (Fig.
  • Page 9 Clean out the gear case. Remove as much ot the grease as possible. The gear case may be thorough* cleaned when the motor has been DISASSEMBLY OF MOTOR AND CONTROL UNIT Stan disassembti/ control unit by removing the flag terminals from the stator (Fig. 15). Remove tho end seal and disconnect the terminals from the...
  • Page 10 The phase control can rtow be disassembled from the bearing bracket. if need be, by unscrewing the É4-40 x pan head screw (Fig. '9 & 20), Fig. 19 Fig. Fig. 20 C. Withtwoserewdrivers,carefullypry offthegovemor assembly, 00 Not Bend, Rernovethe governotdrWe stud and lay it away so it not be lost (Fig.
  • Page 11 assembly, take out the pivot screw and tension washer (Fig. 24 & 25b The speed and carn assembly can be temoved by pulling it out at gear case and motor housing (Fig. 26b pulling it out, remove Onefiat springe E, Unscrew and tho two *10-24 nuts (Fig, 27), remove the bearing btacketlFig.
  • Page 12 Viewing from the mark the brushes right and and also top of the brush, just as it was removed motor. armature be removed, With attach- rnent hub bevel gear removed. insert drift punch through attachment hub opening and gently tap armature straight through the stator using a block ot wood to protect the shaft (Fig.
  • Page 13 To remove the brush holder housings. it will be NOTE: Early production solid state mixer utilized necessary to unscrewthe other stator screw. Under a square brush and b rcj$hholder, brushes stator screws are EIO.24 x t/' cup point aro ro brvor available. Brushes with chamfered setscrews, VV'Äh a small flat screwdriver (Fig, 34b edges square brush holders,...
  • Page 14 E. Push the stator back as far as it will go, than place the #10-24 nuts on each screw. Tighten both nut$. Put the tw•o wires from the stator through the slot in bottom of the gear case and motor housing (Fig.381.Place the motor stud sleeve over the motor stud and wrap the whie wire from stator between the motor stud sleeve and tho gear case...
  • Page 15 Check the armature for end play. Wth the thrust Place the speed control link and cam assembly bearing assembly seated properly and proper through the the bearing bracket with the amountofspacingwashers the roar.there should portion of lhe speed control link and carn assembly be only a perceptible amountof end play to assure toward the top of frie gear case and motor housing.
  • Page 16 Fig, 47 NOTE: Never attempt to take governor apart The purpose of this photo is to show where governor seats on drive pin. CAUTION:: 00 not drive against the ball this cause damage (Fig. 48), CAUTION: Do not attach the phase control exees- fightas pressute coulddefotmthehu sink resurjng in damage to the control...
  • Page 17 Examine the attachment hub bevel gear. If it shows With long nose pliers hook freecontrol platespring Wear in the teeth, it should replaced- TO replace inio the hole on the bottom pan of Plate Place end seal onto mixer. Connect the two tag the bevea gear, coat the Shaf wilh a film of goad terminals from the statocand lhe four flag terminals oil Push it into the attachment hub bearing from...
  • Page 18 Pull out with fingers. Remove shaft from bottom ofgearcasecoverlFig,551Checkshattforbearing wear. Dark gray or indented sudaces indicate Shatt should be replacede Lift gears trom case for inspection [Fig. 56). Fig. Check the lower center bearing for wean This is an oilless bearing and should be in good condition tf it is worn, gear case bottom cover will have to be replaced since the bearing is art integral pan...
  • Page 19 Clean gasketsurface of ute gear case. Piace a newgasketon the bottomcover,over the dowel and press it down so it will stay in position (Fig. Eli. Fig. Place tho worm gearassembly andbearing bracket on the gear case bottom ewer so that he two Fig.
  • Page 20 CAUTION: force the gear cases together. tf gears are properly aligned. these two parts Will assemble easily with little or no force required. It necessary to replace internal gear, pry gear from gear case cover (Fig- When installing newgear, align notcheswith h0tesin gear case andtap evenly into place using non-metallic mallet.
  • Page 21 Place washers on the vertical shaft Place planetary on the shaft and push it up to the washers, There should be a perceptible amount of end play. Line up the holes in the planetary and shaft. It may be necessary to use a scribe to hold shaft up to align hales (Fig' 69}, Drive in the groove pin (Fig.
  • Page 22 SECTION 5 tt the bowl screw cap has wom out, replace it TO remove the odd cap, take out the three tlat head screws and lift out the old cap. Plaee REPAIRS TO K4SSS & KSM90 PEDESTAL naw cap in place and screw it down tight with ute A, It pedestal were removed.
  • Page 23 When proper speed has been lock the two SECTION lock nuts using wrench (Fig, 78} and check ADJUSTING OF CONTROL UNIT speed again, If a small correction must be made. make it without loosenng the 100knut Test speeds as before and when correct, it will not be necessary 10 disturb the lock nuts NOTE:...
  • Page 24 "starling paint" Fig. go A speed tool (strobograph) is available to aqust Turn mixer to *'stir speed?using Graph A for •rrvodel planetary speed settings on an KitchenAid mixers. K45 and (non-solid state) or Graph B for solid Available through LaPorte, part #4164839.
  • Page 25 Fig. SECTION REPAIRS TO MODEL K5SS & KSMC50 BOWL LIFT ASSEMBLY KitchenAid filixers have different type of bow(s and are #eront in size. The K45SS & KSM90 bowl is held stationary by mechanical means at bottom of the pedestal; wheteas, the KSSS and KSMCSO bowl slides up and down on gibs on the front of the pedestal On the model KSS &...
  • Page 26 B. Should the mixer be tipped over or knocked off table or counter. the bowl supx)rt assembly may be broken To repair. it is necessary to replace support. C. To replace the bawl support remove the four She•• 18 x round head screws (Fig, 36} and lift the gear housing Off...
  • Page 27 Examine the bowl Ett arm. This part is held on the Hold the lift arm with large end ot the tapered lift handle pine If the arm is hole up. Start bowt Ifft handle into the arm. HOId cracked at the pin IWe, replace it If mere is any handle so it is pointing Pl,J$hit all lhe way fault in the column.
  • Page 28 Place the base on tho bonom of the column screw in Tue four round head screws (fig, 951, Be sure these screws are very tight to prevent shaking mse (70 to 90 in. lbs.). Place the gear case and motor housing on ute column and screw in the four round head screws (Fig.

  • Page 29: Troubleshooting

    K45SS and K5SS KitchenAid mixers The trouble and possible cause are given with the method used for remedy; For more detailed instructions on how to correct a fault refer to the index,...
  • Page 30 REMEDY POSSIBLE CAUSE TROUBLE Remove end cover ard plug in cord. Mixer no power on low speed. speed adjustment ff'property The planetagy should revolve at about but 0K on high- 60 RPM at tho stir position. To adjust, tum in the control plate adjusting screws an equal amount eplace par.
  • Page 31 POSSIBLE TROUBLE REMEDY Disassemble the motor and replace Burned out armature, if mixer Armature shimmed too tight (see the armature assembly; smokes. item Ji Section Switch not correctly adjusted with Mixer will not shut off wth switch Bend the fixed contact until switch control *ink and carn assembly, arm properly engages,...
  • Page 32 CIRCWT BREAKER BRUSH ONLY BEOWH PHASE CONTROL gpeN gall}' APM o' planetary •t 3.PÄONG CORO Pl.-16804...

This manual is also suitable for:

K5ssK45ssKsm90