Shibaura ST329, Руководство оператора

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CONTROLS, INSTRUMENTS AND OPERATIONS
33
TRACTOR WEIGHTING
To obtain sufficient traction for maximum perform-
ance
in heavy draft operations and to
counter-balance rear-mounted equipment, weight
should be added to the tractor in the form of liquid
ballast, cast iron weights, as shown in Figure
44
and 45 , or combination of both. Only enough
weight should be added to provide good traction
and stability.
Adding more weight than is needed results in un-
necessary soil compaction and increased rolling
resistance and thus higher fuel consumption.
NOTE
： ： ： ：
When adding weight to the tractor, tire
pressure may needed to be increased. Refer to the
Tire Inflation Pressure data found on the next page.
WEIGHTING FOR STABILITY
Front end ballast may be required for stability and
steering control when weight is transferred from the
front wheels to the rear wheels as the implement is
raised by the tractor 3-point hitch.
As a general guide :
Ballast the tractor(less implement) so that ap-
proximately 1/3 of the tractor weight is on the front
wheels. For optimum traction, tractor equipped
with FWD should be ballasted so 40-45% of ma-
chine weight is on front wheels.
When a mounted implement is raised to the trans-
port position, the front wheel reaction should be at
least 20% of tractor weight.
Add additional front end ballast as required for sta-
bility 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 sta-
bility.
Front-mounted equipment varies in weight. Refer to
equipment manual for ballsting.
WARNING
： ： ： ：
If proper stability cannot be
obtained within the weighting limita-
tions below, reduce the load on the
tractor until stability is obtained.
WEIGHTING LIMITATIONS
The weighting limitations that follow are limitations
only ; they do not imply that the tractor should be
weighted to obtain the weights shown. Use only
enough weight to obtain good performance, and do
not exceed the tire load capacities.
CAST IRON WEIGHTS(OPTIONAL)
Cast iron weights are a factory installed option or
are available as accessories from your SHIBAURA
Tractor Dealer. Weights can be mounted on the
front end of the tractor, and on the rear wheels with
AG tire only as shown in Figure
44 and 45 .
Front End Weights
Location Weight(s)
Front End Maximum of 3
Weights per tractor @
30 kg each
90 kg total