Often underestimated, agricultural tyres play several essential roles to which we do not pay much attention in general; yet by optimising certain settings you can considerably improve your tractor’s performance and boost its productivity.
The tyre is the main actor in transmitting power to the ground, making it your principal ally in the pulling power of your vehicle.
Mechanical settings, the height of the studs, wear and pressure are all elements which influence your daily work as well as the compaction of your soils, which can affect your profitability. By mastering certain techniques linked directly to your agricultural tyres, you will be able to optimise your productivity without too much effort.
The advice below will allow you to slow down wear and tear, preserve your soils and reduce your fuel consumption. It will also be useful to calculate the load that your agricultural tyres can bear and possibly help you to use dual tyres to improve traction, reduce the slip ratio and thus improve your yield.
To avoid premature wear to your agricultural tyres and take advantage of their performance for as long as possible, a few techniques linked to mechanics must be taken into account. With this in mind, in addition to adapting tyre pressure settings, you must also consider the lead and correct any misalignment problems.
When the front wheels of your tractor tend to wear more rapidly than the back wheels, this can be linked to the wrong amount of lead. In other words, the front axle is not correctly synchronised with the back axle. In principle, the lead should be between 0 and 3% to allow your vehicle to transmit all its power.
Among the main causes of wear to your agricultural tyres, geometric faults are the most frequent:
In all cases, it is advisable to check the geometry of your agricultural tyres regularly in order to ensure that they do not wear too rapidly. With a little patience and adapted measurement equipment, you can carry out the inspection yourself to save a few more euros.
The use of ill-adapted tyres encourages soil compaction, which inevitably leads to a loss of productivity in the range of 20 to 50% over several years.
To optimise your yield, there are several solutions such as adapting your tyres to the type of ground to avoid further compaction. To do this, you first need to establish the type of compaction:
In all cases, the simplest solution to avoid soil compaction is to use low pressure tyres. These are designed to preserve your soil permanently, thus avoiding recourse to any decompaction operations.
Furthermore, low pressure tyres using VF technology can bear a heavier load (+40% compared to classical tyres) without compacting the soil.
With a larger tyre-soil footprint and a higher load index, VF agricultural tyres guarantee optimal productivity as well as fuel savings.
The price of fuel for tractors and other agricultural machinery increases regularly, which has a major impact on your operating costs. There are also good techniques to adopt to reduce fuel consumption. This involves four essential elements: the tyres, the type of work, the speed and the load.
Incorrect agricultural tyre pressure adjustment will only increase your fuel consumption. You must therefore adapt tyre inflation pressure to the type of work:
Ploughing, transport, livestock management… each type of use of your vehicle corresponds to specific tyres.
To reduce your consumption, you should begin by equipping yourself with tyres that are adapted to the main activity carried out by your tractor.
For example, for regular work in the fields, it is best to use low pressure tyres that are larger than the original tyre mount.
Even if low pressure tyres are often expensive, this is made up for by the fuel savings generated in the long term, the soil preservation, the decrease in working time, less driving related fatigue and an increase in production.
In the case of heavy work such as harrowing or ploughing, it is not necessary to work deep down.
Tests have proved that by reducing the working depth by around 8 cm, it is possible to save on average 25% of fuel. There are different solutions available to you for this:
By permanently chasing after time, you merely increase your fuel consumption, above all if you have several kilometres to drive on the roads every day. In a year, the ten or so minutes gained on each trip are worth nothing compared to the fuel saved by reducing your speed by an average of 10 km/h.
Calculating the distribution of weight is essential when working in the fields. The pulling power required has a direct influence on your fuel consumption. If the calculation is wrong, your machinery will be imbalanced and will not be able to use its full power.
Whatever the case, it’s best to increase the load on the axles by distributing the load as evenly as possible to optimise grip and avoid slippage, which will logically reduce your consumption.
An overloaded trailer has unexpected consequences: agricultural tyre deformation and/or risk of interior cracks, soil compaction, progressive loss of yield …
To ensure the efficiency of your work, balance out the load over the tractor tyres and your trailer. This weight distribution will condition:
The work consists in spreading the weight taking into account the characteristics of your agricultural tyres. If they have the same diameter, they will bear the same weight. However, there are some particular cases:
Among the different techniques used to optimise your productivity, improving traction is essential and using dual agricultural tyres is the best solution. This is all-the-more true when you use a very powerful tractor which is relatively heavy, with wide, heavy implements.
Duals should reduce the load to the ground and make it possible to improve traction, avoid excessive soil compaction and improve your overall productivity.
When using duals, there are four possible configurations which are differentiated by the tyre size and spacing.
The 4th configuration with double furrow wheels is highly appreciated as it makes it possible to preserve the soil without impacting crops in rows such as vegetable crops, beetroot, corn…
The Bridgestone-agriculture.eu blog is written and administered by tractor tyre experts who are available to provide you with the advice you need on the subject of your agricultural tyres. They allow you to maximise your productivity with information on all subjects linked to tyres: Cheap tractor tyres — Technical data for agricultural tyres — Air pressure advice — Solutions to avoid soil compaction — Sprayer tyre pressure — Why and how to ballast your tractor tyres — When to use dual wheels — The mechanical causes of abnormal wear — Cheap agricultural tyres – etc.
To learn more and boost your farm's profits, Bridgestone-Agriculture is offering you a free, detailed white paper that explains the essential role your agricultural tyres play in your productivity.
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