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One factor that can severely inhibit productivity is power hop — a bouncing effect a tractor sometimes experiences when pulling a high draw-bar load. By understanding what causes power hop, however, farmers can better diagnose the problem and make minor adjustments to correct it.
Tire inflation pressures
Inflation pressures can also play a part in susceptibility to power hop. As a general rule, the stiffer the tire, the more susceptibility there will be to power hop. So, for optimum performance, it is recommended that farmers adjust their inflation pressures to the lowest possible pressure for the static load, as recommended in the Tire and Rim Association’s (TRA) inflation pressure tables.
Along the same lines of thought, tire size has been shown to influence susceptibility to power hop, simply because size dictates recommended inflation pressures. The larger the tire, the larger its air chamber, which means it can carry a load at lower inflation pressures than a smaller tire.
The lower the inflation pressure, the less stiff the tire, and the less susceptible the tractor will be to power hop. So, for optimum tire performance, it is recommended that farmers select the largest possible tire allowable for the equipment.