[waflo]

Ja tego nie robilem ale przetlumacz sobie dokladnie ten fragment opisu:

Loosen the 13mm nut, but DO NOT remove the nut completely from the threaded motor pinion, the 'new' location of the arm allows no room to screw it back on (blue arrow). Using the flat screwdriver, pry the short 2' arm (with splines) off the motor pinion splines so it moves around freely.

Now we need to return the motor back to its natural 'off' position (in case you forced it accidentally by loosening the nut). Put the key back into the igntion and turn the wipers on/off briefly. If you loosened the nut enough, the actual wiper blades should NOT have moved from their down position. Remove key.