• Ensure the tractor has a sufficient weight to horsepower ratio for the field operating speed. Add cast ballast as necessary to achieve the required weight. Michelin does not recommend the use of liquid ballast in the tires as this will change the stiffness of the tires and may make power hop difficult or impossible to control.*
• Ensure the tractor has the correct weight split between the front and rear axles; no more than 35% of the weight on the front axle for towed implements..
• Ensure the tires are set at the correct pressure for the axle weights. All the tires on each axle are to be set at the same pressure - duals or triples are all to be set at the same pressure as the inside tires on each axle.
• If power hop occurs, raise front tire pressure by 6 psi.

* For complete rules to obtain optimum tire performance, ask your authorized Michelin^® dealer.

If Power Hop Persists

• If power hop continues, raise the front tires by a further 6 psi. If power hop is still an issue, continue to raise the front tire pressure in increments of 6 psi.
• However do not exceed the maximum tire pressure recommended in the 30 mph table published in the Michelin Ag Tire Databook or website.

If Power Hop Is Still Present

• Raising tire pressures as stated above will normally control power hop. However, if it persists, remove all front suitcase weights, and leave the pressure at the maximum recommendation for 30 mph.
• If power hop persists, put 75% liquid ballast in the front tires, and reset the inflation pressure to the maximum recommendation for 30 mph.

• Power hop is less likely to occur with suspended axle tractors but is still a possibility. Starting from the correct initial tractor setup outlined above, if power hop occurs, increase the amount of weight (suitcases) on the front of the tractor. Do not exceed the maximum load capacity of the tires. Use the appropriate tire load table that matches the maximum speed of the tractor to define the tire load capacity. Increase front tire inflation pressures only by the amount needed to support the additional suitcase weights. Usually this is all that is necessary.

For best performance and reduced soil compaction, Michelin^® recommends that lower “optimized” tire pressures be used during conditions when power hop is less likely to occur.