Kenwood Chef: Replacement of planetary gear SER1018

Pull off the button

Remove the white rubber grommet

Loosen the 6-point nut

Pull the planetary gear straight out

Loosen the Torx screws that hold the bottom of the case

Remove the bottom case

The rubber gasket can be removed for cleaning

Remove felt mat

Remove the Phillips screws to remove both plastic parts

The plastic parts are different

The screws are Imperial not Metric

Remove the three torx screws

Lift off the housing cover

Pay attention to the white rubber buffer (red square)

If the plastic drive wheel was removed in the above step, the next step can be skipped.

Loosening the Tx20 screw hidden by the plastic drive wheel is challenging

I was not able to pull off the plastic drive wheel

If you want to take a chance, you can drill a hole in the plastic drive wheel. However, I did not have the courage to do so.

I made myself a special tool -> see next step

I machined a 6mm open end wrench to be form fit with the Tx20 bit

A slot has been cut in the screw for easier re-assembly

Remove guides (marked in red). They can be used after closing the case.

Remove seal. Has been replaced with silicone sealant.

The one with the cross drive is the old one

The new one has a bayonet lock. However, the whisks and kneading hooks are in the same position, opposite of the mixing bowl.

Difference in gear thickness doesn't seem to have an effect on the function.

The one with the cross drive is the old one

Cod. SER1018: Label from the plastic bag containing the three spare parts

Planetary gear label

6-point nut: label and part

Push each gear on its axis

Be careful with the spacers

There is a lot of grease in the housing. Grease all the parts to be well lubricated.

Replace seal. See step 8.

Stand the machine upright on its feet and place the arm in the horizontal position. With the arm raised, the shaft falls out from the slow drive.

Gently push the parts together.

When disassembling, the screws were loose. That's why they were secured with a drop of screw lock.

Introduce the guides into the right places

Insert hidden screw

Tighten with the special tool from step 7