the vertical static loads on the axles, tyres, traction hitch mechanism and mounted attach-
ment of the tractor obtained from the results of weighing, calculations and ballasting ex-
ceeds the allowable values specified in the Operating Manual for the tractor.
To ensure the steerability, stability and stable traction, hitching and braking capabili-
ties, especially, on the areas of fields with slopes and on soft soils, we recommend providing
the load on the front wheels of the tractor within the MTA 25…40% of the standard operating
weight of the tractor.
To ensure your safety and prevention of operational failures and breakdowns of the
tractor, it is necessary to perform the following actions:
- Determine the value of operating weights of the tractor, machine and process materi-
al.
- Determine the loads on the axles and tyres of the wheels of the tractor.
- Test the tractor within the MTA for compliance with the requirements for the minimum
allowable load on the front wheels of the tractor with the machines in the transport position,
allowable loads on the traction hitch mechanism, axles and tyres of the wheels, required
load-carrying capacity of the mounted attachment for lifting the machine and total maximum
load on the tractor axles.
- Ascertain the possibility of aggregation of a specific aggregate or machine from the
results of weighing.
- Select the minimum necessary weight of the ballast.
- Determine the degree of loading the machine with the process materials ensuring the
safe operation of the tractor.
- Determine the necessity of twinning the wheels and filling the tyres with water solu-
tion.
- Assign the required pressure in the tyres depending on the maximum load and speed
under specific working conditions. The value of separate loads on the front and rear axles of
the tractor within the MTA shall not exceed the total allowed load-carrying capacity of the
front and rear tyres of the tractor, respectively, at the given speed and internal pressure as
specified in the Table of load-carrying capacity of the tyres.
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