09/2019
10
Flail mower adjustment
• On a level area
,
the machine must be retrotrapped to the tractor using the three-point suspension.
• Use a powerful adjustable top bar.
• Lower the three-point suspension to the lowest position.
• With the carrier roller at
the
back
of the
machine in contact with the ground, the length of
the
top bar must be adjusted so that the lower edge of the side of the flail mower is parallel to
the ground.
• Rotate the knife shaft by hand so
that
the rows of knives hang vertically against the ground.
• Measure the distance between the lower edge of the blades and the ground;
o It must be at least 50 mm.
o NOTE! On uneven areas or on fields with many grass tufts, the distance should be
greater to ensure that the knife blades do not come into contact with the ground
during operation.
• Adjust the height of the roller to increase or decrease
the
free movement of the blades as needed.
• Go through the above steps until the desired knife spacing is achieved.
When the flail mower is adjusted at the desired distance, it can be operated with the tractor in low
gear and with the PTO of 540 rpm.
Adjusting the Belts
Loosen screw A and B which lock the support shaft and loosen the nut C.
Loosen the screws
that lock the gearbox to the mounting plate D.
Adjust the belt tension.
The correct tension is achieved when the strap cannot be pressed more
about 10 mm in. (see image below).
Use a straight piece of wood/edge to ensure that the belts are straight and can run
around
properly.
Put the safety cover back on and tighten the bolts well before operating the machine.
Must be able to be
pressed in about
10 mm.
Must be aligned with
the piece of wood.