2009 Caterpillar PM200HP Milling machine

Please help,

I'm deployed with no tech manuals or ops manuals. Are milling machine just went down...the issue is most of the Hydraulic functions are not working.
- It will go start up and go forward and reverse
- The belt turns, but will not spin the drum.
- After trying to spin the drum it will just shut down on it's own.:Banghead

I was wondering if there was some sort of emergence hydraulic shut. I need some guidance

2009 Caterpillar PM200HP Milling machine