Step 1.
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
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
0.2.
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