New Holland TJ Series manual Interaxle Ratio - Front/Rear, Lead/Lag, Tires and Tractor Performance

RIDE, TRACTION & PERFORMANCE

Interaxle Ratio - Front/Rear

*Front Axle Reduction Ratio
TG210 & TG230 (Standard)	1.3228	*21.525
TG210 & TG230 (TerraGlide)	1.3228	*21.525
TG210 & TG230 (SuperSteer)	1.3228	*21.525
TG255 (Standard)	1.3222	*21.535
TG255 (TerraGlide)	1.3222	*21.535
TG255 (SuperSteer)	1.3222	*21.535
TG285 (Standard)	1.3250	*21.535
TG285 (TerraGlide)	1.3250	*21.535
TG285 (SuperSteer)	1.3250	*21.535

Note: *This ratio number (1) can be found on the axle serial number plate.

Lead/Lag

The relationship between the front and rear tires is referred to as Lead/Lag and is stated as a percentage. New Holland has established a Lead/Lag range that provides the operator with acceptable tire wear, front tire steering, and front tire pulling power. Any tire combination that falls within this range is acceptable. Lead/Lag percentages can be calculated using the formula:

Tires and Tractor Performance

To optimize tractor performance, tires should be selected to suit the intended application. Key options like tire size and cast weight packages, combined with proper tire pressure, determine actual tractor performance.

Front Tire Selection

Choose the largest front tire or front dual option with the highest weight-carrying capacity that matches the row spacing. Selection of a larger tire results in reduced compaction and permits heavier loads on the front axle without exceeding the tire load-carrying capacity.

Rear Tire Selection

Choose rear tires that are large enough to carry the total ballasted weight of the tractor with an inflation pressure in the 6 - 14 psi range. Larger tires require less inflation pressure to support a given axle load than narrow tires do. Use only approved tire combinations. The Lead/Lag should be between 0 - 5%, with a value of 1 - 3% being best. Negative Lead/Lag is not recommended.