Crushing, dandy roll

1. Use more long fiber (reduce refining).
2. Check for puddling ahead of dandy and reduce the excess water.
3. Clean the dandy.
4. Ensure that dandy is:
(a) correctly positioned with regard to flatboxes.
(b) correctly set with regard to forming fabric (about a 2.5 cm impression as seen from below).
(c) driven slightly faster than forming fabric.
5. Ensure that dandy is properly positioned in relation to solids content of web being formed.
6. Check to ensure that dandy is not contributing to two-sidedness.
7. Check dandy cleaning shower for plugged nozzles and check shower pressure.
— dandy may be throwing water.
8. Check for changes in stock blend or properties.
— wire may be too fine for furnish.