You can get the manual and engine parts from Zimmerman Oliver Cletrac, their contact info can be found here: <!-- m --><a class="postlink" href="http://www.olivercletrac.com/">http://www.olivercletrac.com/</a><!-- m -->

The serial number tag for the machine should be on the right hand side of the bell housing. There is also a serial number tag on the engine, but it only has engine info, nothing about the whole crawler.