Bosch PBD40 bench drill press circuit board speed control Replacement

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To access the inner workings, first turn the 4 slotted screws from the top.

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Now the front cover and the left fairing can be removed. Attention, the cables are tightly routed. Two retaining plates (red arrows) for the cables must be loosened to work better. Behind the speed controller is a loose adapter to the circuit board ... do not lose it.

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On the right side there is also an adapter from the transmission switch to the transmission. This is only plugged on and tricky to assemble.