The diagram shows how the new fully integrated tyre pressure control system for John Deere 8R Series tractors works.

Using an on-board compressor, this John Deere manufactured system allows the tractor driver to continually monitor and adjust tyre pressure with just the push of a button. Constant optimisation of tyre pressure can increase efficiency both in the field and on the road, making overall tractor performance better than ever before.

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Low tyre pressure in the field helps reduce soil compaction and increases pulling performance. On the other hand, high tyre pressure on the road improves driving behaviour, whilst rolling resistance and tyre wear are reduced.

There are also considerable spin-off benefits on fuel consumption and lower operating costs.

Tyres can be deflated for field work to increase their footprint by nearly 25%, with a reduction of up to 3psi in ground pressure, giving 2-4% less wheel slip. This also helps to increase field speed while reducing soil compaction and smearing. Back on the road, a simple button press reinflates the tyres to optimum pressure for transport.

The system can be easily adjusted using the tractor’s CommandCenter display and features uniquely quick inflation and deflation times.

For example, the internal pressure of a large tyre combination (710/75R42s with 650/60R34s) can be increased from 0.8 to 1.8 bar in less than six and a half minutes, while less than four minutes is needed to release the pressure from the tyres. This is ensured by the inside diameter of the air lines, which are 33 per cent larger than other solutions.

An external compressed air connection allows even faster inflation, for example by taking air from a slurry tank compressor. It is also possible to connect an air gun for cleaning purposes, if required.

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John Deere is also responding to customer demands for higher performance tyres and is increasingly offering a wider choice of VF (very high flexion) options. Consequently, this allows operators to work with the lowest tyre pressures even when using higher ballasting weights.

Price of the new John Deere CTIS option is £13,490 in the UK.