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26 – English
MAINTENANCE
Adjustment of the cutting unit’s
parallelism
1. Dismantle the front hood and right-hand fender
as described on page 18.
2. Vertical adjustment of the cutting unit is made
with the adjusting nuts on the back edge of the
lift-strut.
3. Raise the cutting unit at the front edge by
shortening the lift-strut.
Lower the cutting unit at the front edge by
lengthening the lift-strut.
4. Tighten the nuts against each other after the
adjustment.
5. On completion of the adjustment the unit’s
parallelism should be re-checked.
Fit the right-hand fender and the front hood.
2
Adjusting the alignment of the cutting
unit for the Rider 11 Bio and Rider 13 H
Bio
1. Remove the front hood and right-hand fender as
described on page 18.
2. Unscrew the nut (1) from the parallel strut.
Remove the clip (2) and the parallel strut.
3. Turn the fork anti-clockwise to lower the rear
edge of the hood, or clockwise to raise the rear
edge of the hood.
4. Once adjustment is complete, refit the parallel
strut and clip and tighten the nut.
5. Recheck the alignment of the cutting unit after
adjustment.
6. Refit the right-hand fender and hood.