Great-plains P13307 User Manual download pdf (Page 26)

Solo

Operating Instructions

26

4. Adjustment / Operation

4.9 Work Settings

In work the wing cylinders should be fully

extended. A simple pressurised hydraulic

circuit automatically sets itself as the wings

are unfolded.

Optimum performance has been found to be

achieved when the press roll rings have worn

away the painted finish leaving a smooth shiny

surface. When the press roll rings are new or

rusty, soil may tend to pick up on the surface

and blockage may occur, this will reduce when

the rings are shiny again.

The Solo should be run with the chassis level

by extending the drawbar cylinder to the

necessary position and adding shims as

appropriate. In practice it is possible to use

the Solo on ground conditions that are

unsuitable to achieve the desired effect, and

it is usually possible to operate without regular

blockage under such unsuitable conditions,

assuming that the axles are tight and rings

smooth. As such, especially under wet

conditions, it is advisable to check on the

cultivation effect of the Solo.

Generally a forward speed of 5-7 mph (8-11

kph) will achieve optimum results, maximising

inversion and burial. Speeds in excess of

those stated above will tend to give a

deterioration in the quality of the work. This

may be seen as a ridge and trough effect

across the work surface due to soil being

thrown too far by the leading discs, the rear

discs then are unable to turn enough soil back.

In normal operation the machine should be

hydraulically drawn onto the drawbar shims,

however, it is permissibleto operate the lift

circuit in float in order to allow the implement

to follow contours as the tractor drawbar drops

(eg. over the brow of a hill).

General Rules when Setting

the Solo

• The drawbar cylinder setting and the roll

depth setting work on a 2:1 ratio. For

example; if 50mm of shims are added into

the drawbar cylinder then 25mm of shims

should be added into the roll depth control

rod in order to keep the machine level.

• The roll depth control rod works on a 1:1

ratio. If 25mm of shims are added into the

depth control rod this will result in the

machine running 25mm deeper.

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