Maintenance and storage
Disc mower
GMD240-280-310
81
KN204AGB H
- Replace nuts in the following cases (1):
• When nut wear reaches a = 5 mm (0.2’’).
- Replace spring plate in the following cases (3):
• When there is visible distortion.
• When you have noticed important wear on a spring
plate: Width B of a spring plate, measured at A =
20 mm (0.8’’), must exceed 60 mm (2.4’’).
- Slightly hit all ground residues between
the knife and the screw with a mallet to
remove them.
The radial play between a worn bolt and a new
knife must not exceed d = 10 mm (0.4’’).
- Check the condition of the fixing elements
regularly and also the torque of the knife-
fixing bolt:
• Torque: 12.3 daN m (91 lbf ft).
See section: Maintenance and storage /
Maintenance / Spring plate replacement.
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