I've been breaking flywheel shear bolts on my 275 baler so I bought a manual and read it and decided to check the timing. I lined up the marks on the plunger and the marks on the knotter and it was off about 1 inch so I took the chain off per the manual and lined up the marks on the knotter assy, and rolled the flywheel thru the knotter cycle and it was alot smother than before. I also did the needle penetration check and measured it was in spec (1/8 to 1/4 inch). I read in the manual that if the knotter brake is to tight will cause it to break the shear bolt on the knotter drive. Also if the knotter brake is to loose it will cause excessive fly wheel bolt breaking.Breaking the fly wheel shear bolt is my problem. I noticed that my knotter brake is worn out ( brake lining on both left brake and right are shot),so I have ordered a new brake and the book doesn't explain how to adjust the knotter brake and the brakes are about $ 35.00 each and hoping that some of you guys could give me some advice on how to do this. Thanks for your help Joe C