Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
Also to broaden the search were these fitted to any other model....surely they must have
Remove the small adjusting screw and fill the thing up with WD then let it sit, shake it all about and remove as much WD as possible then refit the adjuster screw, connect to a battery and try adjusting--works about 50% of the time