1. Remove bottom platen and clean debris from under platen, Top Piston Machines only. Lubricate holding pin lightly.
2. Check the vent/dipstick on the back of the reservoir. It must be unscrewed at least (1) full turn before operating the pump.
3. Check the top spherical head to insure it is attached firmly to the hydraulic piston.

A. This can be done by pulling on the allen screw located at the tip of the spherical head. If the spherical head assembly moves independent of the piston, THE TOP HEAD MUST BE TIGHTENED!

Note: If the top head is loose, see the section on tightening the top spherical head.