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4.4. Work Settings
In work the wing cylinders should be fully extended. A simple pressurized hydraulic circuit
automatically sets itself as the wings are unfolded. Optimum performance has been found to be when
the press roller has worn away the painted finish leaving a smooth shiny surface. When the press
roller is new or rusty, soil may tend to pick up on the surface and a blockage may occur. This will
reduce when the rings are shiny again. The press should be run with the chassis level by extending
the tilt cylinders to the necessary position then adjusting the trip switch.
NOTE: to ensure the correct machine pitch is achieved it is necessary to extend the tilt rams enough
to reset the switch then lower it back into work again. If this is not done it may appear that continual
switch movement has not effect. In practice it is possible to operate the press on ground conditions
that are unsuitable to achieve the desired effect, and it is usually possible to operate without regular
blockage. As such, especially under wet conditions, it is advisable to check on the cultivation effect of
the press. Generally a forward speed of 5-9 mph (8-12kph) will achieve optimum results, maximizing
inversion and burial. Speeds in excess of those stated above will tend to give deterioration in the
quality of the work. This may be seen as ridges or troughs across the work surface due to soil being
thrown too far by the disc/tine elements. In normal operation the machine should be drawn on forward
on the tilt cylinders until the limit switch is activated. For this to happen the power to the solenoid valve
must be on (switch on the side lights). With this system it is possible to run the tilt
cylinder circuit in the
float position. This will allow the implement to contour follow as the tractor drawbar drops (e.g.: over
the brow of a hill).
4.5. Transport wheel adjustment
If when in work the center of the machine begins to dip or the machine enters a wet spot it is possible
to support weight on the middle transport wheels.
4.5.1.
Adjusting the Transport Wheel Height
Operate the main tilt circuit (red) to extend the cylinders and support the weight of the machine on the
rear roll, continue to extend the cylinders until all tines/discs are out of work. Now, operate the wheel
cylinder circuit (blue). This will push the wheel cylinders open (the rear roll cylinders will also extend at
the same time). Add/remove the required number of shims from the wheel cylinders then operate the
circuit in the opposite direction to close the wheel cylinders. NOTE: ensure the shims on the wheel
cylinders and the rear roll are clamped up tight. Making sure no one is near the machine lower the
machine back into the work position. As long as the power to the limit switch is still on then the
pressure will return to the previously set pitch.
