New Holland TG Series - Manual (Page 19)

Easy Ballasting Options
19
RIDE, TRACTION & PERFORMANCE
The University of Nebraska conducted field tests in the
summer of 1999 to compare the effect of traction on
tractors equipped with and without front dual wheels.
The results showed, when pulling drawbar implements,
generally a 65/35 rear/front weight split performed the
best for tractive efficiency with single or front dual
wheels. Hitch mounted implements generally performed
best with a 60/40 rear/front weight split. The test
emphasizes the importance of proper ballasting.
During tractor ballasting, pay attention to:
• The front to rear weight split on the tractor
• Pounds of weight per PTO hp and drawbar hp
• Tire load/inflation values
Proper ballasting minimizes compaction and enhances
tractor performance. Front duals increase the tire-to-
ground contact area and reduce the ground contact
pressure under the front axle. The tractor used for the
field test was equipped with 520/85R46 rear and
480/70R34 front tires. With these tires, the use of front
duals increases the tire-to-ground contact area by 25%.
Lower air pressure (see Load/Inflation Charts) improves
the tire footprint, while reducing the tire to ground
contact pressure and compaction in the field.
FWD Dual Wheel Field Test Results
Two different front weight frames are available
depending on FWD on SuperSteer options. The
weight frames increase front end vehicle weight and
the weights wrap under the chassis providing greater
ground clearance. The front wheels turn behind the
weights and frame for increased visibility and tighter
turning radius.
Two suitcase weight options are available, weighing
40 kg (88 lb) and 100 kg (220 lb).
• When using the large suitcase weights, a
maximum of 16 weights can be installed
• When using the small suitcase weights, a
maximum of 22 weights can be installed
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