It doesn’t appear to be,but I cannot lift the arm away from the casing,using a screwdriver. I can see that by removing the split pin and undoing the nut,the arm will move away from the gearbox and the ball drop out,but I envisage doing that and then trying to put the ball onto the arm,the nut on to the arm and the split pin back in is going to cause a lot of non dictionary words,not to mention skinned knuckles !!! I just wondered if any of the experienced Scott owners might know an easy way.
It is not as bad as it looks.
Undo the nut just short of the thread end and catch the ball.
the spring should stay put
the spring is not as strong as you may think
you can turn the arm just enough to replace the ball
fit the ball in the detent with a drop of grease, turn back the arm and tighten the nut.