WORX Landroid M700 WR142E – TEIL 1: Mähroboter auseinanderbauen

Hallo, vielen Dank für das Video! Bei mir ist es noch nicht ganz klar, ob es tatsächlich auch der Sensor ist. Was hattest du für eine Fehlermeldung? Nur "Kabel fehlt..", oder "EXT. Mcu Error Updating fw failed."? Letzteres ist es nämlich bei mir, doch vorher war es auch das fehlende Kabel, obwohl mein Kabelkreis korrekt ist… Vielen Dank!

This was a great help for me to dismantle my own M700. I had a problem where the STOP button had jammed in the 'stop' position, and there was no movement when I tried to press it.. The menu displayed STOP and wouldn't let me send it out to mow. I discovered that the options menu on the top panel has a diagnostics section, which shows the state of various sensors. The stop switch was shown as active. I had tried various power cycling of the mower and the app, and even succesfully installed athe latest firmware, but that did not clear the fault, which lead me to believe that either the stop switch itself, or its connecting wires or PCB connections had failed. Perhaps due to water ingress or wear. So I dismantled the mower and got to the PCB underneath the STOP button. Here I discoverd a microswitch connected by wires to the PCB. I removed the microswitch and it tested pefectly ok. Indeed there was no sign of any water damage either on the microswitch or the PCB. The problem was the mechanical action of the big red button. Even with the microswitch removed, the red button was jammed. The red button is supposed to activate the microswitch button only when it is pressed down. But it was permanently in the pressed down position. I could not find a way of removing the red button, either from above or below the mower's body. So I inserted a thin knife blade in the narrow gap between the red button and the edge of the opening for it and freed several small pieces of grit. The button became unstuck, but as soon as i pressed it it got stuck again. So I squirted some WD40 into the narrow gap from the top, and also into the circular opening underneath, where the the red button pushes down on to the removed microswitch. Then I pressed the red button multiple times until it started to function as it should. There is a concealed and seemingly inaccesible coil spring inside the red button housing and perhaps this had also become disfunctional due to dirt etc. I then put the microswitch back and partially re-assembled the mower in order to re-attach the battery and power it up. This showed that normal operation had been restored. I fully re-assembled the mower and it has gone out every day for the last 3 days and worked faultlessly, like it has done for the past 2 seasons. Many thanks again to CY Hobby Handwerker for publishing this helpful dissassembly video.

Hallo, wie war das Fehlerbild?

Danke, werde meinen wr142e mal auseinander nehmen (ich denke, dass das sehr analog geht) und dann mal gucken ob ich sehen, was dem Regensensor so Kummer bereiteter…