Calculating the required tractor characteristics


Designation	Unit	Description	Calculated values
T_L	kg	Tractor empty weight
T_V	kg	Front axle load of the operational tractor without mounted implement or ballast weights
T_H	kg	Rear axle load of the operational tractor without mounted implement or ballast weights
G_V	kg	Total weight of front-mounted implement or front ballast
F_H	kg	Drawbar load
a	m	Distance between the centre of gravity of the front-mounted implement or the front ballast and the centre of the front axle
a₁	m	Distance between the centre of the front axle and the centre of the lower link hitch
a₂	m	Centre of gravity distance: Distance between the centre of gravity of the front-mounted implement or the front ballast and the centre of the lower link hitch
b	m	Wheelbase
c	m	Distance between the centre of the rear axle and the centre of the lower link hitch

Calculate the minimum front ballasting.
Calculate the actual front axle load.
Calculate the actual total weight of the tractor-implement combination.
Calculate the actual rear axle load.
Determine the tyre load capacity for two tractor tyres in the manufacturer specifications.
Write down the determined values in the following table.

IMPORTANT

Danger of accident due to implement damage caused by excessive loads

Make sure that the calculated loads are smaller or equal to the permissible loads.


	Actual value according to calculation			Permitted value according to tractor operating manual			Tyre load capacity for two tractor tyres
Minimum front ballasting		kg	≤		kg		-	-
Total weight		kg	≤		kg		-	-
Front axle load		kg	≤		kg	≤		kg
Rear axle load		kg	≤		kg	≤		kg