KUHN GMD350, Operator'S Manual, Page: 74 / 100

Disc mower
72
GMD350 - 350-FF
Maintenance and storage
Fixing elements
Check the fixing elements:
- After hitting an obstacle.
- When replacing knives.
- At the beginning of each season.
The fixing bolts should be changed in the following
cases:
- When there is visible distortion.
- When the locking compound is worn or inoperational.
- When the bolt head wear reaches the center line of
the bolt.
- When diameter D of the bolt shoulder is less than
15 mm (0.6’’).
- After having been removed 5 times.
Replace nuts in the following cases:
- When the contact washer has lost its elasticity.
- When the contact washer loosens itself from the nut.
- When nut wear reaches a = 5 mm (0.2’’).
- After having been removed 5 times.
-
Check the condition of the fixing elements
regularly and also the torque of the knife-fixing
bolt: 12 daN m (89 lbf ft).