New Holland Boomer 41, Operator'S Manual

Page: 135 / 216

6 - WORKING OPERATIONS
6 - WORKING OPERATIONS ###_6_###
GENERAL INFORMATION
Tractor ballasting
For sufficient traction and maximum performance
in heavy draft operations,
and to counterbalance
rear-mounted equipment, weight should be added to the
tractor in the form of liquid ballast, cast iron weights,
or a combination of both. Only enough weight should
be added to provide good traction and stability. Adding
more weight than is needed results in unnecessary soil
compaction, increased rolling resistance, and higher fuel
consumption.
NOTE: When adding weight to the tractor, tire pressures
may need to be increased. See Wheels - Tire pressure
in this manual.
Front end ballast may be required for stability and steering
control when weight is transferred from the front wheels
to the rear wheels as an implement is raised by the tractor
three-point hitch.
As a general guide:
Ballast the tractor (less implement) so that approximately
one-third of the tractor weight is on the front wheels. For
optimum traction, tractors equipped with front-wheel drive
should be ballasted so that
40 - 45 % of machine weight
is on the front wheels.
When a rear mounted implement is raised to the transport
position, the front wheel reaction should be at least 20%
of tractor weight.
Add additional front end ballast as required for stability
during operation and transport. Tractor front end ballast
may not always maintain satisfactory stability if the tractor
is operated at high speed on rough terrain. Reduce tractor
speed and exercise caution under these conditions.
When using front-mounted equipment, add weight to the
rear axle to maintain good traction and stability. Front-
mounted equipment varies in weight. Refer to equipment
manual for ballasting.
WEIGHTING LIMITATIONS
The weighting limitations that follow are limitations only.
They do not imply that the tractor should be weighted to
attain the weights given. Use only enough weight to ob-
tain good performance.
6-1