ok....i bought one of these last year and baled about 300 bales......had no problems with only a few misties and what nots.......this year on my first cutting i seviced everything and oiled/greased all moving parts.....went to the feild and the very first bale it hit the safety stop and broke the chain between the drive and knotters...it also broke the right side knot mount......i fixed the chain and welded the mount back down......my question is......what is that stop on the side for and is there a trick to timing this thing because it wont tie anything now.....????