Replace Bosch MFQ1308 spur gear - iFixit Repair Guide

Introduction

The spur gears can wear out or be destroyed if the blender binds. The exchange is very easy.

What you need

Step 1 Spur gear

Replace Bosch MFQ1308 spur gear, Spur gear: step 1, image 1 of 1

Here are the new spur gears. The spare part number at BSH is Bosch 00027660

Step 2

Replace Bosch MFQ1308 spur gear: step 2, image 1 of 2

Replace Bosch MFQ1308 spur gear: step 2, image 2 of 2

Place the hand mixer so the bottom is facing you.
There are three long #2 Phillips screws in recessed holes. remove those.
Keep the screws safe.

Step 3

Replace Bosch MFQ1308 spur gear: step 3, image 1 of 1

With a little force pull the upper part of the housing upwards

Step 4

Replace Bosch MFQ1308 spur gear: step 4, image 1 of 1

Lay the device on the table with the underside.
The two spur gears are clearly visible, probably also the worn areas in the helical gearing.

Step 5

Replace Bosch MFQ1308 spur gear: step 5, image 1 of 3

Replace Bosch MFQ1308 spur gear: step 5, image 2 of 3

Replace Bosch MFQ1308 spur gear: step 5, image 3 of 3

The spur gears are fixed from above by a metal plate. This metal plate is inserted into a large plastic tab on both sides.
Gently push one of the two tabs outwards a little until the metal plate comes out of the slot.
Lift the metal plate complete with the controller and tensioner up and away and set it aside.
The two clamps for the stirring inserts are on top of the spur gears. Just lift them out

Step 6

Replace Bosch MFQ1308 spur gear: step 6, image 1 of 2

Replace Bosch MFQ1308 spur gear: step 6, image 2 of 2

Lift out the two spur gears.
There is a plastic washer on the axle of the spur gears. Transfer that to the two spare parts.
Before you put everything back together, you should clean the inside of the device well.
Grease the parts with a little food-grade silicone grease.

Conclusion

Work the steps in reverse order to reassemble your device.

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