Ploughing Techniques; Turning At Headlands; Operating Speed; Stumps And Rocks - Grizzly Field Boss Folding Wing Manual

10 Operating Instructions

10:5 Ploughing Techniques

10:5:1 Turning at Headlands

The plough must always be raised from the
ground when turning sharply at headlands.
When turning at the end of a run it is
necessary to lift discs clear of the ground to
avoid uneven working and ridging as well as
damage to the plough.
Also when turning sharply make sure the
plough pull does not contact rear tractor tyres.

10:5:2 Operating Speed

The optimum speed for the machine will be
determined by the conditions and the task
being performed.
Operating speed is generally about 7-8kph (4-
5mph).
Secondary working or working deeper in
soft soils or peaty loam soils will require a
reduction in speed, to as low as 4-5 kph.
IMPORTANT!
If the plough is not lifted from
the ground and obstacles such as
rocks and stumps are encountered
while working through a corner,
disc & machine damage may
result because of the very square
angle at which the disc strikes an
obstruction.
June 2018
10:5:3 Ploughing Patterns
Your plough is fitted with rear filler discs
on each side at the rear of the machine.
This allows for working in any direction,
whether ploughing perimeters, headlands or
diagonally.
10:5:4 Ploughing Soft Ground
Ploughing soft ground requires less set/gang
angle, and reduced speed, when ploughing
deeper than 100 mm (4") deep more gang
angle may be required to achieve the depth,
depending on the size and concavity of the
discs.
10:5:5 Ploughing hard ground or
ground which comes up
in large clods
Generally, most conditions will allow you to
get the required depth on the first pass.
Setting 1-2 is usually the most appropriate
setting, it may be necessary to work some
country twice to achieve the desired results.
Sometimes full depth can be achieved in the
first pass on Setting 3, but with the result
of leaving large, hard to break clods and
boulders.
Specifications are subject to change without prior notification

10:5:6 Stumps and Rocks

A disc plough is primarily a rolling, chopping
machine.This means that:
a) The faster the disc is going, the soil is
thrown further, resulting in ridges and gutters.
b) When stumps, rocks, etc are encountered,
the disc which strikes the obstacle must either
break it, cut it or lift the machine over it. Discs
are not designed to remove stumps.
c) The less set and less speed that can be
used the better because:
i) The disc will have a better chance to cut
the obstacle. More set creates a greater
bulldozing and less cutting effect.
ii) There are less twisting and tearing forces
acting on the disc. This gives the disc a better
chance to roll over obstacles and minimises
the chance of disc damage.
iii) Using less speed and minimal gang
settings also exerts less strain on frame
components and bearings.
Minimal set and speed will maximise the
cutting width, and reduce the load on the
tractor, reducing fuel consumption.
IMPORTANT!
Always use less set on discs and
lower speed when operating in
stumps and/or rocks. Damage
caused by misuse in rocks and/or
stumps is not covered by warranty.
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