Need to open gearbox

Lyle Siemens

• 328 Answers
• Posted on Nov 10, 2007

SOURCE: Disassembling the gearbox on Kenwood mixer A707

If the belt wheel is pressed onto a spindle, you need a gear puller. Do you have any pictures of this? I am trying to visualize the problem.

SOURCE: Diagram or exploded view for disassembly for 5K5SS mixer

Have you tried this site? I saw it posted on another question/solution.

http://downloads.mendingshed.com/KitchenAid_Service_Manual.pdf

SOURCE: I unscrewed the rubber "screws" on side and now I have no power

Hi CURIOUSHBGEO, I hate it when that happens. Those ‘rubber (plastic) “screws”’ are your mixer’s electric motor brushes. The slotted black threaded plastic parts are just the Brush Holder Caps and are the protective covers to the brush holder assemblies. They allow access to the brushes when they need to be replaced without having to take the whole mixer head apart.
From what you’ve described, I suspect that one or both of the brushes is (are) not seated properly when you reinstalled them. The brushes need to be installed so that they both seat correctly on the armature's commutator or you won’t get any ‘juice’ to the motor. See the illustration below:
I'd suggest removing them again and making sure the concave contact face rests completely on the armature’s commutator. If you've turned it 90 degrees too much, it won’t seat properly and you get no power to the motor.
It would also be helpful to have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website at: http://www.kitchenaid.com/flash.cmd?/#/page/home.
Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use K45SSW, and select the first file K45SSWH0.pdf (341.41 KB) listed under Parts List (1) and then check to verify this matches your mixer model.
Turn to pages 6 & 7, titled “Motor And Control Parts”, which provides an exploded view for the disassembly and reassembly of your mixer’s electrical components, along with all the parts. Locate Illus No 32, Brush holder assembly that includes Illus. Nos. #18, 21, 22, 23 & 31, and Illus. No. 19, Brush & Spring assembly respectively.
The Parts List illustration along with the picture above regarding the orientation of the brushes should get your mixer powered back up and operational. Good luck! I hope this helps. Howard, Burke, VA
If this solution has been helpful to you, please rate it, thanks! -hslincoln

SOURCE: trying to replace carbon brushes on Kitchenaid

Check the brushes. They get caked up with burned flour. Remove the brush caps and pull the brushes out by their springs, being VERY careful to note the position of them since they only go back in one way. Measure the free length of the spring before pulling it out. It is critical that you write down the length sticking out with very slight pressure on it so that it is seated against the armature when you measure.

Clean the curved surface of the carbon brushes with a sharp knife being careful not to scratch the curved surface. If you have them installed wrong they will not go all the way in and will not contact the armature and it will not run. Measure the length, as done above, of the spring to make sure it is in correctly!! If it is not in correctly the spring will stick out 1/4 inch longer than it should.

Keep turning the brush until you have the shortest amount of spring sticking out when you press it in all the way then slowly release pressure on the end of the spring. You will know when it is in correctly since the difference in length is noticable. The curvature on the front of the brush must line up with the curved surface of the armature which runs from the front of the mixer to the rear.