Knife Replacement - KUHN GMD16 Operator's Manual

- Replace nuts in the following cases:
• When the contact washer has lost its elasticity.
• When the contact washer loosens itself from the
nut.
• When the nut wear reaches a = 5 mm (0.2'').
Check the condition of the securing elements
regularly and also the torque of the knife-fixing
bolt:
• Torque: 12 daNm (89 lbf ft).

10.3.6 Knife replacement

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.
- 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.
KN225BGB_A
Disc mower
GMD16-GMD20
a
10. - Maintenance and storage
79