ROLLOMAXIMUM XL
Page 18
Adjustment of hydraulic weight transfer system
The hydraulic weight transfer system distributes the weight evenly between all the
machine's sections.
Once the roller is fully extended and the transport wheels are off the ground, the
extend/retract cylinders are depressurised (marked: red), the cylinder control
lever is then moved in the opposite direction.
This is indicated after a
short delay
by a deflection of the
manometer. The pres-
sure is increased to ap-
prox. 15 bar (B). Some
of the weight from the
machine's centre
is thus trans-
ferred to the side sec-
tions.
The control lever connected to the outlet (marked: red) is then set to the float
position. The floating setting is required to achieve hydraulic weight transfer,
allowing the sections to move independently and protecting the machine's
key components. The pressure will remain indicated on the manometer after
float position has been adopted.
The pressure for hydraulic weight transfer may need adjustment. It may also be
necessary to adjust pressure according to soil conditions.
Excess pressure
1
Pressure on the side sections will be too great, leaving clear tracks in the
soil after the side sections have passed.
2
The centre section will not compact the soil enough, as the soil after the
centre section has passed is higher and not as compacted as that worked
by the side sections.
Insufficient pressure
1
The pressure on the extremities of the side sections will be insufficient to
give uniform compaction.
2
The mid-sections will compact the soil too much, leaving the soil after the
mid-section has passed more compacted than that worked by the side sec-
tions.
A
B
