Bosch planetary gear disassembly

To prepare for the disassembly of this shredder, you must begin by:

Removing the collection bin (see user manual)

Removing the upper funnel (also known as the chute). The manual can also assist you here.

These steps are the standard storage procedures for the shredder.

Remove the 4 Torx screws securing the control panel

Lift the panel to remove it.

Lift up to remove the panel holding the control buttons.

Be careful to remove and store the springs under the buttons. These are not fixed.

Unplug the circuit board:

The power connectors are disconnected by pressing the tab to lift the retaining flap, then pulling the socket away from the board.

The sensor connectors are disconnected by pulling on the socket. You can use a small tool like a spudger or a small electrician's screwdriver to remove them.

Lift the board by the side (connector side) to remove it.

Remove the two Torx 20 screws securing the rear housing, then pull on the housing to remove it.

We must now remove the upper (black) case from the grinder.

Remove the funnel (or hopper) fastener knob. This red knob is attached to the side of the black case.

This knob may be secured by a pin that must be removed before pulling on it.

Remove the six T20 Torx screws located under the grinder.

Pull on the upper cover to remove it.

Once the black housing has been removed, the capacitor and ground wire connections are accessible:

Unplug the capacitor connections by pulling on them.

Unplug the ground wire by removing the washer screwed onto the motor. You will need to remove the Torx screw that secures it.

Unscrew the four bolts that secure the motor-grinder block to the chassis. You will need a wrench or a 12 mm socket wrench. A second wrench may be necessary to hold the shaft, which can also be unscrewed.

You will then be able to separate the motor-grinder block from its chassis and the green casing.

Now unscrew the four screws holding the blade holder in place using a 5 mm Allen wrench.

Simply pull on this metal part to detach it from the rest of the motor block.

A 6 mm allen wrench is required to undo the 4 blade fastener screws.

You must then pull the blade to remove it from its axis. It may be seized due to time, moisture, or dirt. A penetrating oil may help.

The screws can now be accessed to open the gearbox, the compartment containing the planetary gears.

Remove the four Allen screws that secure the gearbox.