Wood slivers in sheet

1. Source is usually pieces of wood, slivers and dirt in stock supplied to machine.
— check pulp supply to mill along with all wooden components of system for damage or deterioration.
— tramp wood in stock or broke may come from refiner fittings or skids.
2. Screens partially blocked, and not discharging enough dirt or foreign material.
— check the screen and clean it out.
— check direction of screen rotation.
3. Blocked centrifugal cleaners, allowing dirt to pass with accepted stock.
— check each cleaner and unblock any that may be plugged or not operating properly.
— check pressures to assure sufficient pressure drop through cleaners.
4. Examine conical refiners closely for loose pieces of filling.
5. Pieces of wood lodged in stock or fan pumps.
— locate source and correct.