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K5SS Stand Mixer
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
KITCHENAID
Stand Mixer Service Manual Lit4177310-C 2005 KITCHENAID
Safety Guidelines
This Service Manual is written for the Professional Service Technician who has familiarity with the KitchenAid Stand Mixer. The following Safety Guidelines should be adhered to when servicing this product.
SERVICE ENVIRONMENT
- ·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 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 procedures discussed in this manual should be conducted with the unit disconnected from the AC mains.
- ·Do NOT leave the unit unattended while running the mixer for speed range and bowl clearance checks. Always unplug the unit immediately after concluding these tests.
Technician
- ·The Service Technician should wear Protective Eyewear at all times when conducting a repair on the Stand Mixer.
- •Loose fitting sweaters, shirts sleeves or bracelets should NOT be worn while servicing the Stand Mixer.
KITCHENAID
Stand Mixer Service Manual Lit4177310-C 2005 KITCHENAID
INDEX: Stand Mixer Repair Manual
K45SS KSM75 KSM90 KSM103 KSM110 KSM150 KSM151
K5SS KSM5 KSM50P KSMC50 KPM5 KPM50 KP50P
| SECTION | SUBJECT | PAGE |
|---|---|---|
| - | General Information | 1 |
| 1 | Disassembly of Gearcase and Planetary | 2 |
| 2 | Disassembly of Motor and Control Unit | 6 |
| 3 | Repairs to Motor and Control Unit | 11 |
| 4 | Repairs to Gearcase and Planetary | 16 |
| 5 | Repairs to Pedestal | 21 |
| 6 | Adjustment to Control Unit | 22 |
| 7 | Repairs to Bowl Lift Assembly | 26 |
| 8 | Troubleshooting 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 |
Table Caption: This table outlines the sections and their corresponding subjects and page numbers for a service manual, along with an appendix section containing additional reference material.
Introduction
All KitchenAid Stand Mixers are well designed and carefully built. Normally they will give continual use year after year without service attention.
Careful records have been maintained over a period of years to determine and correct, through improved design, any troubles that might possibly develop.
An effort has been made in preparation of this manual to cover them all.
INDEX
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 trimband and nameplate.
A mixer in good running condition will start turning slowly when the switch lever is moved from the 'OFF' position to the 'STIR' position.
As the switch lever is moved to successively higher positions, the speed of the beater increases until the #10 speed is reached.
At stir position, the planetary should turn at approximately 60 RPM; at the #10 position all models turn at approximately 255 RPM, with the exception of K45SS models built before May 6th, 2002 (WM19), which turn at approximately 280 RPM.
KITCHENAID STAND MIXER RPM
| SPEED | *K45SS | OTHER MODELS |
|---|---|---|
| STIR | 60 RPM | 60 RPM |
| #10 | 255 RPM | 255 RPM |
| Prior to May 6th, | 2002, | |
| #10 | 280 RPM |
Table Caption: This table compares the stir speed and #10 setting speed for the K45SS model and other models, noting a specific speed difference for the #10 setting prior to May 6th, 2002, for the K45SS.
*Note: All models have similar RPM, except K45SS units built before May 6 th , 2002, which run at 280 RPM in the #10 position.
The mixer will run quietly in the lower speed range; however, some noise can be expected on the higher speed settings due to hum of gears and the motor.
When the mixer is first turned to the stir position, there may be a slight clattering, irregular noise. This noise will disappear as the lubrication in the gearcase warms up.
The switch lever should move freely with the 'feel' of definite positions for speed numbers stir, 2, 4, 6, 8 and 10. Speed numbers 3, 5, 7 and 9 do not have definite notches.
Power
A mixer will have full power on all speed settings. To check for full power, carefully hold the planetary with one hand and move the switch lever on and off with the other hand.
At the stir position, it should not be possible to stall the planetary except by a very great effort; nor should the planetary slow down noticeably when the retarding pressure is applied.
KITCHENAID
Stand Mixer Service Manual LIT4177310-C 2005 KitchenAid
Heating
Under normal conditions, the mixer will not show any tendency to heat because of the built-in ventilating system in the motor.
Under heavy loads with extended mixing time periods, the head may heat up to the point of being uncomfortable to touch.
Speed Control
The speed control of the mixer is attained through the use of a governor assembly mounted at the rear of the control plate assembly.
The electrical circuit is made and broken by the action of
