GMR STENSBALLE, User Manual

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GMR maskiner a/s Page 28
STENSBALLE rotary mowers
Operating Instructions
GB
Maintenance and storage
Sharpening the blades The blades can be sharpened while they are mounted on the mower,
or they can be detached and sharpened. Always make sure that the
blades are sharpened evenly and are balanced. After sharpening,
hang the blade on a nail or similar to check the result.
The blade must always be sharpened on the inclined upper side.
1. Start the tractor engine.
2. Raise the mower to the top lifting position.
3. If the mower is equipped with the hydraulic tilt-up function, tilt the
mower into an almost vertical position.
4. Stop the tractor engine.
5. If the mower is not equipped with the hydraulic tilt-up function,
lift the front edge of the mower by hand into an almost vertical
position.
6. Secure the mower position with the supplied locking bolt through
one of the slots in the mounting brackets and the mounting bracket
plate on the centre mower.
7. It may be necessary to detach the rear support wheels and wheel
forks before tilting the mower vertically.
The blades can now be serviced. After sharpening, hang the blade on
a nail or similar to check the result.
WARNING
Never allow the blades to rotate when cleaning the
mower.
NOTE
To ensure a correct and fine cut, the blade material
must be sharpened to max. 5 mm. At this point,
the blades should be replaced.
See the illustration below.