Folding - DAL-BO PowerRoll 1030 Manual

Figure 4
Check all the accumulators on the machine at least once a year for leaks and
authorized Dal-Bo dealer for more information.

Folding:


Tip the roller down with the large rams (red hoses) until
the adjusting bolt on the central section is touching the
leaf spring mounted on the drawbar. It may be necessary
to adjust the bolt, depending on the height of the tractor's
draw bar.
Put the operating valve, connected to the red hoses, into
the neutral position.
If the adjustment is correct, the large rams should move in neutral position,
the adjustment bolt should be touching the leaf spring, and all the roller
sections should exert the same pressure across the full working width.
Before rolling is started, activate the swing rams (blue hoses ) for folding until
the pressure gauge mounted above the accumulator reads 60-120 bar. After
this it is very important that the handle for the swing rams are put in floating
position. The floating position is necessary to achieve hydraulic weight
transfer, in which the sections are free to move individually. The accumulator
will then work as an hydraulic "spring" that is preset. The presetting means
that the roller transfers weight from the central section out to the side sections,
ensuring uniform pressure across the full working width and giving the roller
great freedom to follow uneven ground.
to ensure that the precharge pressure is set correctly. Contact an
First release the pressure from the side sections (blue hoses) by unfolding
them (pressure on the gauge drops).
Then tilt the roller up on to the wheels with the large rams (red hoses). Fold
the side sections in using the swing rams (blue hoses), pulling the outer
sections in first and then bringing the side sections in together until they hit
the transport bearing.
Finally lower the side sections into the transport bearing using the large rams
(red hoses).
It must not be possible for the valves to apply pressure to the roller by
themselves during transport. It is advisable to put them in neutral position if
possible.
The roller should only be folded for transport. It does not have to be folded
for turning in the field.
It is also possible to reverse in working position.
Recommended driving speed: 6-8 kph. Slower on stony ground.
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