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Current version by: Bob ,

Text:

OK so here is what happens. The blades get stuck for some reason in my case the nut holding the blade on came loose and the blades crossed it could also happen if the blade is frozen to the screen. As the motor continues to try and turn the worm drive in the motor gearbox drags past the nylon gear that senses the park position.
 
Now if the blade is at either the top or bottom of its total movement then this happens it has the effect of moving the park 180 degrees out of alignment. So to fix it all you have to do is take the small arm off the motor and rotate it 180 degrees. Make sure you hold the the arm still with a spanner while you undo the nut so you know exactly where to rotate the arm to.
 
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Status:

open

Original post by: Bob ,

Text:

OK so here is what happens. The blades get stuck for some reason in my case the nut holding the blade on came loose and the blades crossed it could also happen if the blade is frozen to the screen. As the motor continues to try and turn the worm drive in the motor gearbox drags past the nylon gear that senses the park position.

Now if the blade is at either the top or bottom of its total movement then this happens it has the effect of moving the park 180 degrees out of alignment.  So to fix it all you have to do is take the small arm off the motor and rotate it 180 degrees. Make sure you hold the the arm still with a spanner while you undo the nut so you know exactly where to rotate the arm to.

Status:

open