McHale V6750 - Setting the Bale Density; Net Tension Gauge

McHale V Series Baler
95
9.11 Setting the bale density
The bale density gauge is divided up into increments of 20 bar per increment and has
a yellow zone, green zone and a red zone, as a quick reference during machine
operation. When baling drier materials such as straw or hay McHale recommend
setting the bale density pressure between 70 and 110 bar pressure (setting 4 - 5).
When baling wetter materials, such as grass for silage, a pressure of between 110 and
160 bar pressure is recommended (setting 7 - 8). The bale density can be controlled
from the control box. The density can be set from 1 - 10. Normally a maximum of
160 bar is adequate to produce good dense bales. A higher setting may be required in
wet crop conditions. The selected density setting is displayed on the main screen.
9.12 Net tension gauge
The net tension gauge is used to indicate the pressure being
generated by the tension on the net during application,
depending on the 'net stretch' setting on the control box. The
pressure is determined by the control unit, depending on the
net tension setting. If there is 0 bar pressure during netting, it
would indicate a fault and in this case first check the oil level
in the tension pump. (See ‘Net tension pump’) . In general,
higher tension settings will result in much superior bale shape
and presentation, but this depends firstly on the quality of net
being used, in that too high a setting will cause lower quality
net to break during application or break when the net is on the
finished bale. And further, the amount of net being applied will
affect the max net tension setting that can be used, in that
more layers will allow for a higher overall net tension, as there
is more net available to hold the bale together.
McHale
recommends a net stretch setting of 5 or less for drier
materials, when set to a high bale density.
(See ‘Net stretch’)
CAUTION: Bale density pressure should not go above 210 bar
The bale density pressure should never be adjusted above 210 bar
pressure. If 230 bar is exceeded, damage to the machine components
may result.