Modern Tire Dealer

OCT 2018

Magazine for the professional tire industry

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Page 49 of 101

A G T i r e T a l k M T D O c t o b e r 2 0 1 8 48 advantages/disadvantages that will have a strong influence on the selection of one system over the other. Most important, this decision depends strongly on the use and soil conditions of each farm. We also have to consider the money the farmer obtains by selling his production and the cost of inputs needed to produce the crops. e following points are what we know as facts: • Farm machinery equipped with tracks is more expensive than ones equipped with tires. So here is the first consideration when analyzing what system to purchase -- return on investment: "Does my additional upfront expense really pay off with the advantages I could obtain using this equipment during its life cycle?" • Tires don't have moving parts, but tracks have a lot of them. Moving parts means maintenance and wear. Depending on working conditions and the quality of maintenance this wear could increase rapidly. • e cost of a set of replacement rubber tracks is significantly higher than replacing a set of tires. is is particularly significant on harder ground, as lugs on the tracks are not as flexible as the lugs on tires. • Changing tread spacing from flotation to row crop with tires is no issue. Track systems normally don't allow tread spacing or track width changes, as the complete system must be changed. • Units with tracks are generally slower in transport mode than units equipped with tires. is is especially important for farmers with their farming ground spread out, traveling long distances between fields. • Track systems are heavier than tires, increas- ing the "death weight"… and reducing available horsepower for the real work. • Tires provide a smoother ride on hard surfaces or roads thanks to the cushioning the air inside the tires provides. On the other hand, tracks can provide a smoother ride on rough fields, especially when traveling across the rows. e tracks — due to their longer contact area — can bridge over ruts. However, when crossing ditches, waterways or small hills, this bridging effect of tracks is less adaptive than tires. • Track tractors are more maneuverable at the end of the rows as they can counter-rotate, providing the possibility of a zero turn on the spot. is maneuver will create berming when turning on end rows, and the farmer will need to level this area before planting -- additional time-consuming labor. ere is also the risk to jackknife the tractor into the implement when turning sharp on end rows with an implement that is hooked to the drawbar. ere is more care and precaution to be taken with track units. • The flexing property of the tires helps improve the self-cleaning during labor in higher moisture conditions. • One large advantage of tracks is as they don't have air, they can't go flat like tires. With superficial compaction, the general assumption is that tracks provide a lower superficial compaction, as there is more surface contact with the ground compared with tires. is idea would be correct if the pressure — total tractor weight — was Be a trailblazer with the assured performance and longer life of GRI Agriculture tires. We will innovate our tires continuously to help extend your lead. LEAD THE FIELD Tel: +1 951 202 3993 Tel: +1 615-828-7353 R

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