Correction Factors for Other Tire Sizes
To calculate ground speeds for tractors equipped with rear tires other than 18.4-30 tires, multiply speeds shown in GROUND SPEED ESTIMATES by the correction factor for the appropriate tire size found in the table.
Be sure to use correct ground speed estimate for your transmission type (SyncShuttle Plus
™
, PowrReverser
™
or PowrReverser Plus
™
). Use creeper transmission ground speed estimates, if equipped.
Example: Forward B-2 (SyncShuttle Plus
™
Transmission) at 2200 engine rpm with 13.6-38 tires.
8.1 km/h (5.01 mph) x 1.0 = 8.1 km/h (5.01 mph)
| Tire Size |
Correction Factor |
| 13.6-38 R2 |
1.0 |
| 16.9R34 R1W |
1.0 |
NOTE:
The actual speeds vary with rolling circumference, load, tire pressure, make of tire, wheel slip etc. If the precise speed is required for specific applications, then it must be obtained by measurement.
|