Stretched short turret belt test
This tip will determine if you have a stretched Short Turret Belt. Having a stretched belt will cause indexing past the #9 pin position of the turret. While the pinsetter is running, look directly down the top of the torsion latch post. If any part on the top of the post is hidden by your Indexing Trip Lever Shaft, the short turret belt is stretched and needs to be replaced.