DALBO POWERROLL 1430, Manual, Page: 19 / 34

POWERROLL
Side 19
Adjustment of hydraulic weight transfer
Hydraulic weight transfer distributes the weight evenly between all roller sections.
1. Once the roller is fully extended and resting on the ground in working posi-
tion, depressurise the fold/extend cylinders (marked: Red/Black). Activate
the cylinder control handles in the opposite direction. Set the raise/lower
cylinders marked white to flow position.
Fig. 15
2 A fluctuation will occur
on one of the manometers after
a brief pause. Increase pres-
sure to 60-100 bar (A/B) on
both manometers. This will transfer
some of the mid-section weight
to the side sections.
3 Set control handles for hoses marked red and black to flow position. Flow
setting is necessary to achieve hydraulic weight transfer, allowing the sec-
tions to move independently
4 The pressure for hydraulic weight transfer may need adjustment. It can also
be necessary to adjust pressure according to soil conditions.
Excessive pressure
1 The pressure on the outer rings of the innermost side sections will be too
high. The rings will be pressed too heavily into the soil leaving a clear groove
after the side sections. The pressure on the outer side sections will also be
too high.
2 The mid-sections will not apply sufficient pressure, leaving the soil higher
and not as compressed as the sides. The tractor tracks will also be deeper.
Insufficient pressure
1 The pressure on the outer rings of the inner side sections will be insufficient
to give uniform compression. The pressure on the outer side sections will
also be too low.
2 The mid-sections will compress too much, leaving the soil lower than the
sides.
 To prolong service life and the final result in the field, the hydraulic hoses
marked white, red and black must be in
flow setting
when working in the
field.
 Failure to do so is incorrect use and can cause the frame to break in the
worst scenario.
Check all the accumulators on the machine
at least once a year for leaks
A
B