Leaking doctor blades

1. The edges of the felt should be kept dry.
2. Preventative maintenance is needed with a good millwright.
— ensure that doctor blade holder is true and fits on a machined surface.
— the doctor must be clean.
3. Prevent water from running in from edge of doctor (use a pad of wet broke).
— keep wet broke across full doctor width.
4. Check for oscillation.
— check the doctor angle.
— if the doctor overhangs the roll, cut back one tooth at each end.
5. Check the fitting when blade and roll are at operating temperature.
6. Occasionally, on older machines, tapping in wedges between the block and holder may eliminate
the leaking.