50
Figure 4.20 – SR460/620 Front to Rear Machine Levelling
(SR460 model shown)
Figure 4.21 – Tie Bar Adjustment
(SR460 model shown)
Figure 4.22 – Tyre Sinking
4.7.2 Wings
Levelling the wings left to right is most critical with low cutting heights (75mm and below). Machines roll in
work due to ground contours, soft ground supporting the wings and suspension give. It is advisable to prevent
regular and excessive contact of the wing blades and anti-scalp disks with the ground as this will cause them to
wear more quickly. The additional load can also temporarily put excessive strain on the machine driveline
leading to potential premature clutch wear and gearbox failures.
With the machine in the working position and the wings folded down it may be necessary to alter the height of
the wing to ensure each rotor is cutting level.
We recommend the wings are set 12 – 25mm (½ “– 1”) higher than the centre chassis, to maintain a level
cut; see Figure 4.23.
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