What should I do if the system stops or will not start?

Check that air pressure or volume is not too low and increase air volume or check the air compressor if needed. Also verify that air lines and air valves are not closed or restricted, fluid valves are open, and fluid hoses are not clogged. If these steps do not resolve the issue, the air motor may be worn or damaged, or the displacement pump may be stuck and require repair per the respective component manuals. (Page 43)