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1. Turn the mower upside down and use a screwdriver to turn
each adjustment screw, as shown above, clockwise a little at a
time.
2. Wearing gloves, carefully rotate the cutting cylinder (C) by
hand to ensure it very lightly brushes across the whole width of
the bottom blade. If the blades are too difficult to turn, slightly
loosen each adjustment screw (D).
3. While the blade reel is turning, insert a sheet of paper
(thickness around 0.12mm) between the blade reel and the
cutting bar. The paper should shear evenly along the entire
length of the cutter bar, as if being cut by scissors. If the paper
doesn’t shear, slightly tighten each adjustment screw (D) and
repeat the test.
4. Turn the mower back over, plug it in and try it. It should now be
giving a clean and even cut. If not, unplug and re-adjust the
screws.
From time to time during use, it is advisable to carry out the above
procedure to ensure that your cylinder mower is always cutting at
its best.