Drag wear, wire/fabric

1. Check roll bearings to ensure free rotation.
— check roll cover hardness and age.
2. Ensure supporting surfaces are least abrasive material available.
3. Check roll alignment and guide system.
4. Check that furnish is free of abrasive fillers.
5. Ensure that shower water is free of sand or other naturally occurring grit.
6. Control the drainage on the table to reduce drag load and drag wear.
— reduce vacuums to prevent freezing or hanging of forming fabric on a suction box.
7. Check setting of forming board to ensure adequate room for uniform, minimum breast roll discharge.
8. Drag wear is alleviated by good maintenance, selection, and tuning of drainage and forming components.
9. Streak abrasion can be due to scale that gets hung up on forming board or other stationary elements and wears a streak that doesn’t drain as well as the rest of the wire and thus marks the sheet.
10. Check power split between couch roll and drive roll.