Air blowing out rear main motor exhaust.
To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.
- Stall air motor under load in the middle of the stroke, check for air exhausting from rear main motor exhaust.
- Replace motor piston o-ring.
- Stall air motor under load in the middle of the stroke, check for air exhausting from rear main motor exhaust.
- Remove air valve cover and check for binding/sticking of air valve cup/carriage.
- Be careful removing the gasket.
- Replace air valve cup.
- Replace valve plate seal.