Air motor “bounces” at top or bottom of the stroke.
To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.
- Remove poppet mufflers and check for proper changeover.
- Clean or replace the poppet valve.
- Problem poppet is typically opposite from where motor bounces, because the opposite poppet valve is slightly leaking, preventing proper changeover.
- Inspect piston valve for damage and proper orientation.
- Replace valve body or entire air valve assembly.
- Inspect piston valve for damage and proper orientation.
- Replace valve body or entire air valve assembly.