Operator’s manual
Double-sided disc mowers
with central suspension
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4.7.
Design and operation of safety breakaway device
Hydraulic safety breakaway design protects mower against hitting small obstacles. In
the event of hitting an immovable obstacle the cutterbar folds back about 30 degrees and at the
same time rises about 70 cm. After that, the cutterbar automatically comes back to working
position.
Fig. 9. Hydraulic safety breakaway device
Fig. 10. Simultaneous holding back of the mower up and backwards when safety breakaway advice is used
CAUTION:
Proper operation of hydraulic safety breakaway device is ensured only
by manufactured adjustment of the valve (500 kg). Changing of safety
breakaway device adjustment will lead to losing of warranty.
5.
OPERATION
5.1.
Attaching the mower to the tractor
Mower’s frame is adjusted to be attached to the tractors class 2,0 and 3,0. The mower is
connected to tractor’s 3-point-linkage (Fig. 11). After the mower has been attached, adjust (on flat
ground) mower’s position by means of top S and lower links W (Fig. 11). The cutterbar should lean
towards driving direction. Lower links W should be connected to 3-point linkage frame pins A.
Connect hydraulic hoses to tractor’s hydraulic connectors.
After the mower has been attached to tractor, check balance and steerability of tractor-mower
set. To do it, weigh the set and after that drive on the weigher with only front axis of the tractor
(the mower must be in transport position – lifted upwards). If the pressure on the front axis is at
least 20% of the whole set’s pressure, it means the set is stable. If not, front axis should be
balanced.
