Great-plains P14888 Serial No 18007975 Manuel d'utilisateur télécharger pdf (Page 21)

21SL700

Operating Instructions

The SIMBA SL700 is an amalgamation of

time proven, successful Simba design

components brought together to form this

important development. The SL700 has been

designed and produced in conjunction with

the Simba ECOtillage™ system to provide a

one pass mix with a fissured layer at disc

depth for through drainage and root access

to lower horizons. This enables rapid

drainage and access after rain, creating a

greater effective capacity for moisture

compared to ploughing for the same effective

total depth of cultivation.

In principle, the machine is an offset disc with

Terra-Grip tines, designed for low draft, high

speed operations. The addition of a levelling

board and rear mounted roll enables more

effective cultivation in one pass. The leading

set of disc blades cultivate the top horizon,

minimising clod formation and reducing tine

loadings and blockage. This starts the ‘top

down’ cultivation process, retaining

weathered tilth in the surface level for stale

seedbed purposes. The tines follow the disc

blades to shatter at depth retaining the

surface intact to work as an ECOtillage

™

stale seedbed. This eliminates the problem

of ‘wet years’ in non-plough based terms. The

key to the SL700’s success is the lower draft

tine point and wing which maintain shatter

across the full width of cultivation. The rear

roll then consolidates the surface, cracks any

clods and firms the soil profile after the rear

gang completes mixing to depth. The

corrugated top and shattered lower horizons

are left fully weatherproof to any conditions

between cultivation and drilling whilst retaining

moisture below the surface for rapid straw

breakdown and optimum establishment of the

next crop.

4. Adjustment / Operation

4.2 Depth Wheels

The depth wheel units support the front of the

machine helping to reduce the load on the

drawbar / rear of tractor in work and ensuring

a level soil finish.

Fig. 4.02: Depth Wheels

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 35 36

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