Get the PDF reader from Acrobat, it's a small software.

http://www.adobe.com/products/acrobat/readstep2.html

After you downloaded the software, go to:
http://www.loam.org/vw/Vanagon/

and click on """Dometic RM182B service manual"""

have fun, Ben
http://www3.sympatico.ca/huotx/engine1.htm