Check to see if the pickup bars, where the teeth bolt to, are bent. If they are bent, stand to the left of the baler, as you face the front of it, and look at the row of teeth. If the teeth are not in a straight line, but look like a parenthesis symbol ) ) ) the bars are bent. you can un-bend them by hinging up the door, locking the safties, and hooking a come-a-long to the bars, and bending them back to straight. Also there is what I call a pickup flapper bar, in the bale chamber that might bend, or freeze in place, check that it rotates, and is straight. Watch out the bugger is sharp. Also, if the belts are really old and smooth, you will have problems, and starting bales can be easier, if the first bite of hay you feed into the baler, is made, by going across a big windrow, at a right angle to the windrow. Also, the manual covers all of this, plus can tell you which way to feed hay in, butts in first or heads in first. Believe it or not it makes a difference.