Standen Unistar 2400, Operator'S Handbook Manual

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Automatic Depth Control
The machine is fitted with an automatic depth control system which ensures an even
depth of soil in the finished bed. The depth roller (item 1, fig 8) runs on top of the
preformed bed following the contours. The depth roller is linked to a depth sensor
(item 1, fig 9) and via the hydraulic valve bank actuates the depth rams (item 2, fig 9).
A depth indicator is fitted to the RH depth ram giving the operator a visual indication
of the action of the sensing system. The ram stop brackets (item 3, fig 9) must be set
in the position shown before commencing work.
The depth roller frame pivots on rubber torsion mountings (item 3, fig 8). By adjusting
these mountings it is possible to adjust the amount of pressure the roller exerts on
the soil. The pressure setting needs to be made with the machine in work so that the
relative working position of the roller and shares is correct.
1.
Release the front and rear quadrant stops (item 4 & 5, fig 8) on both sides of
the roller unit.
2.
Lower the machine into work until the shares are at the required digging
depth.
3.
Slide the front stops (item 4, fig 8) up against front edge of the quadrant arms
(item 6, fig 8) and lightly secure.
4.
Raise the machine slightly, causing the quadrant arms (item 6, fig 8) to rotate
backwards away from the front stops (item 4, fig 8), and then reposition the
front stops up against the quadrant arms and secure fully. The higher the
machine is raised prior to repositioning the front stops, the greater spring
pressure will be.
5.
Lower the machine back into work and set the rear stops (item 5, fig 8)
approximately 15mm away from the rear of the quadrant arms (item 6, fig 8).
This gap allows the depth roller to drop slightly, maintaining digging depth,
when the tractor rides out of the bed onto the headland.
OPERATION 1.14
Fig 8 Fig 9