sitrex DM/4, Spare Parts List And Assembly, Use And Maintenance

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ADJUSTMENT AND SET-UP
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Belt tension must be checked regularly particularly during the first few hours of use. In order to
adjust tension proceed as follows (fig. 13):
1) Loosen the nuts 1.
2) Move the pulley and use nuts 1 to increase belt tension until distance C (visible through
opening 2 as shown in fig.13) is about 20 mm (0.8 inches) when pressure is applied to the
center line.
3) Tighten the nuts 1 in order to fasten the pulley hub and finally check that tension is correct.
If a belt has to be replaced, all belts should be replaced at the same time.
The belts must be loosened at the end of the season.
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The cutting height can be adjusted by using turnbuckle 1 on the third tractor point to vary the tilt
of the knives compared to the ground (distance F in fig. 14).
Cutting height may vary within the range of 16/60 mm (0.63/2.36 inches) even though uneven
land may influence these values.