Help - Please!

We own an Oliver 620 Baler, we have all our hay cut and 200 bales in this afternoon we broke a shearbolt on the flywheel during the tying cycle. Replaced shear bolt, ran by hand .. Everything appeared to be in &quot;time&quot; so again we attempted to bale. Broke another 2 shear pins on the flywheel at the next tying cycle. We headed back to the shop @ this point being out of shear bolts &amp; with it being the 4th all rational humans are home NOT baling hay <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) --> 

We still have over half of our hay on the ground to bale tomorrow... Any chance any one out there has a manual for either of the above balers or any advice at all!? Greatly appreciate any help! Happy 4th <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) -->

-Xo- Alyson