Disc mower
76
GMD240-280-310
Maintenance and storage
KN204AGB H
- Replace nuts in the following cases (1):
• When nut wear reaches a = 5 mm (0.2’’).
Knife replacement
Parking
- Clean the nut case.
- Place a wooden wedge between two discs to stop
them from rotating.
- Loosen nut using box spanner supplied with the
machine.
- Remove bolt through opening located at the front of
the disc guard.
- 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).
Before carrying out any maintenance or
repairs on the machine, switch off the tractor
engine, remove ignition key, wait until all
moving parts have come to a standstill and
apply park brake.
Replace immediately all worn or distorted
knives.
Never straighten a bent knife.
- Always replace both knives per disc.
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