KitchenAid Professional 5 Service Manual

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
If not, adjust the bowl height by turning the beater 
height adjusting screw clockwise to decrease the 
clearance or counter clockwise to increase the bowl to 
beater clearance (Fig. 97).
Fig. 97 Adjusting the beater to bowl height using the 
adjusting screw.
Q.  Both “Bowl Lift’and “Tilt Head”international 
export models require an “R F”filter that is mounted 
to the bottom cover of the motor housing with a 
single round head screw (Fig. 75).
SECTION 8
TROUBLESHOOTING THE BOWL LIFT 
STYLE ASSEMBLY
NOTE: Newer models have an adjusting screw       
located on the top center of the column for 
adjusting the bowl to beater clearance.
A.  If the beater rubs the bottom of the bowl, it can 
be corrected by turning the adjusting screw out. 
If the unit has no adjusting screw, it can be 
corrected by tapping the yoke arms down evenly 
with a mallet. 
There should be 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 determined
by dropping a dime in the bowl. The flat beater          
should just “touch”the coin as the beater rotates.
C.If the bowl rocks on the bowl support, this is 
caused by a broken bowl spring latch.
Remove the two screws and place a new latch in 
position.
Screw in the two screws tightly. (Fig. 95)
D.  If the bowl retaining pins are worn, the bowl 
will move on the pins and the beater will hit the 
sides of the bowl.
To replace the pins, twist and pull up at the same 
time. They are not difficult to remove.
To install the new pins in the bowl support, place 
pins in holes, support the end of the arms with a 
heavy object, and drive the pins down gently.
Be careful not to bend the arms of the bowl 
support.
Page 28 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
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APPENDIX 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
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Appendix -A
Tools Required for Stand Mixer Service
Mallet
Hammer
Needle Nose Pliers
Ratchet
#3 Phillips 
Bit
11/32”Wrench
Long 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 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
PROBLEM SOLVING QUICK REFERENCE GUIDE
Appendix B-1
MIXER PROBLEMMOST LIKELY CAUSE(S)WHAT TO DO / CHECK 
Switch lever clicks, but mixer will notOpen electrical circuit.Faulty plug.
 run or buzz.Faulty power cord.
Faulty speed control plate.
Wire loose from brush holder.
Bad connection between field and cord.
Open circuited armature.
Open circuited field.
Faulty switch ON/OFF.
Bad phase control.
Dirty contacts.
Incorrect brush orientation.
Mixer will not shut off with switch.ON/OFF switch not correctly Check switch control link lever.
  adjusted with switch control link
Bowl not held firmly on pedestal Loose clamp disc screws.Tighten the screws.
Bent bowl screw cap.Replace bowl screw cap.
  If none available, bend the four lugs or lips
back into position.
Beater strikes bowl or too much Adjusting screw on tongue of  Turn the adjusting screw slightly to right or left to  
  clearance.   bottom cover improperly set.   adjust clearance. Clearance should be 1/16
Planetary turns - 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 noiseBottom 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 goes to higher speeds.  Control plate contacts not going closed.
Adjust the control plate.
Bad phase control.Replace the phase control.
Mixer runs on low speed, but has Bad electrical connections.Check the connections to the control plate.
  no power.Repair any loose connections.
Replace the control plate assembly.
Mixer has no power on low speed butStir speed improperly setRemove end cover and reset stir speed.
  OK on high speed.  The planetary should revolve at 60 RPM on stir
Faulty governor.Turn switch lever to # 10 position and hold out the
control plate as far as possible. Turn the switch lever
to OFF. Watch the governor as it recedes when the 
armature slows down. If faulty, replace it.
Repeated worm gear failures.Galled attachment gear.Replace attachment hub gear.
Attach hub bearing galled.Replace gear case - motor housing. 
						

							
KITCHENAID

Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
Appendix B-1
FASTENER REQUIREMENTS
A.   FASTENER AND TORQUE VALUES
LISTED BELOW ARE THE FASTENERS AND TORQUE VALUES USED IN THE ASSEMBLY OF THE KITCHENAID.
DESCRIPTIONTORQUE IN LBS.
BASE & COLUMN MOUNTING SCREWS (4)(K45)125/150
BEARING BRACKET ASSEMBLY RETAINING NUTS (2)15/20
BOWL SCREW CAP RETAINING SCREWS (3)(K45)24/32
BOWL SPRING MOUNTING SCREWS (2)(K5)18/23
BOWL SUPPORT MOUNTING SCREWS (2)(K5)18/23
BRUSH HOLDER CAPS (2)4/6
BRUSH HOLDER SET SCREWS (2)3/5
*CONTROL LEVER (SPEED) PIVOT SCREW (1)18/23
CONTROL PLATE LOCKING NUTS (2)MIN 9
ELECTRIC CORD GROUNDING SCREW (1)18/23
END COVER RETAINING SCREW (1)4/7
FEET MOUNTING SCREWS (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 RETAINING NUTS (2)MIN 30
PHASE CONTROL RETAINING SCREW (1)4/5
PLANETARY GEAR RETAINING SCREW (1)(KSMC50)18/23
TRIM BANDMOUNTING SCREW (2)8/10
EUROPEAN GROUND AND FILTER MOUNTING SCREWSMIN 18
STATOR STUD3/5
*** IF TORQUE GUNS RE SET AT 15/20 LBS.,NUTS MUST BE HAND TORQUED ATLEAST 1/4 OF A TURN WITH A HAND NUT 
RUNNER
WORM GEAR BRACKET MOUNTING SCREWS (3)18/23
BOWL ADJUSTMENT SCREW (K5)10/12
* BEFORE ASSEMBLY, DIP SPEED CONTROL LEVER PIVOT SCREW AND GURADPIN INTO A LOCKTITE #271 SOLUTION 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
PROBLEM SOLVING QUICK REFERENCE GUIDE
Appendix B-2
MIXER PROBLEMMOST LIKELY CAUSE(S)WHAT TO DO / CHECK
Mixer runs only on high speed.Control plate spring unhooked.Remove end cover and check control plate spring.
If unhooked, reattach to bottom of the control plate
(check hook on end - rebend if necessary).
Phase control shorted.With the line cord disconnected, pull the T-bar
contacts open and insert a piece of paper between 
them so they can not close. Reapply power; the 
mixer should just run or buzz trying to run. If it 
operates at full speed, the phase control is defective.
Wires connected wrong.Check wiring.
Mixer runs with a jerking clattering Loose connections on the Check connections on the control board to make 
  noise on low speed.  control board.  certain they are tight.
Tight shim on vertical shaft betweenTight bearing.First remove the planetary to check the beater shaft
planetary and lower gear case.bearing in the planetary. If the beater shaft can be 
   See item V - Section 4easily 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 armature thrust bearing.Replace the thrust ball bearing on the armature.
Mixer runs, but will not come up to highTight bearing, if no smoke is First remove the planetary to check the beater shaft
speed. Has power, but labors and usesapparent.bearing in the planetary. If the beater shaft can be 
excessive watts.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.
Armature shimmed too tight.Overheated armature, if the mixerDissemble the motor and replace the armature
See item J - Section 3smokes.assembly.
Mixer will not shut off with switch lever.Switch not correctly adjusted with Bend the fixed contact on the control board until the 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
PROBLEM SOLVING QUICK REFERENCE GUIDE
Appendix B-3
MIXER PROBLEMMOST LIKELY CAUSE(S)WHAT TO DO / CHECK
Switch lever clicks, but mixer will not Open electrical circuit.Progressively disassemble the speed control 
run or buzz.mechanism plus the motor and perform the
following checks until the open circuit is found.
Look for:
Faulty plug on power cord.
Faulty power cord.
Bad connection in speed control plate.
Faulty speed control plate.
Wire lead clip detached from brushholder.
Bad connection between field and cord.
Open circuited armature.
Open circuited field
Incorrect brush orientation.
Electrical shock to operator.Bare lead touching the insideDisconnect from power source. Turn the switch on 
of the motor housing.and check for ground with a test lamp. Touch one
lead of the test 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 switch clicks,Frozen bearing.Examine all the bearings in the order of their 
motor buzzes and smokes.accessibility, until the frozen bearing is found.
Bad sparking at contact points orWired wrong.Check wiring.
burned contacts on switch.Faulty Phase control.Replace phase control.
Bad sparking at motor brushes.Worn motor brushes.Remove motor brushes and check that they are 
not worn to less than 5/16. Replace with new 
brushes if excessively worn.
Rough commutator.Remove and replace armature. Check brushes 
for wear.
Faulty armature or shorted field.Dissemble and check motor.
Mixer runs on high speed only.Phase control defective.Replace phase control. 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
Appendix C
STAND MIXER WIRING DIAGRAM 
DOMESTIC MODELS
Adjust these screws 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
Control Plate
Circuit
Breaker
Model KSMC50 Only 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
.  
Appendix D
STAND MIXER WIRING DIAGRAM
INTERNATIONAL MODELS -R F FILTER
Adjust these screws 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
Control Plate 
						

							
KITCHENAID
Stand Mixer Service Manual LIT4177310-C                          2005 KitchenAid
.  
Appendix E
STAND MIXER WIRING DIAGRAM
INTERNATIONAL MODELS -BOWL LIFT and R F FILTER
Adjust these screws 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 forspeed 6 after Stir Speed  has beenadjusted. If using a digitaltachometer at the attachment hub,set the  reading at 141 -170 R P M.
Phase Control
Brush Holders