Grinding And Balancing Of Blades - Jonsered FR13 Workshop Manual

Reparation instructions

Grinding and balancing of blades

1
WARNING!
When working with the blades,
use protective gloves.
• Remove the blades according to the decription in
the previous section.
• Clamp the blade in a screw vice and file it so that
it becomes sharp.
52
– English
2
Balance the blade as follows:
• Fix, for example, a mandrel horizontally in a
screw vice according to the diagram.
• Push the blade onto the mandrel via the hole in
the centre of the blade and check that the blade
balances evenly. The diagram shows a blade
which needs to be adjusted, it must be ground
further to obtain the correct balance (at the
arrow).
• Installation is carried out in the reverse removing
order.
IMPORTANT INFORMATION
When the blades on the mulching unit
have been removed the friction disc
located between the blade and nut must
be replaced.