FENDT FORMER 12545 PRO, Operator'S Manual, Page: 40 / 76

Technical data
38 FORMER 12545 PRO
5.4 Axle loads, gross weight
and minimum ballast re-
quired
The front axle of the tractor must always be
loaded with at least 20% of the empty
weight.
To ensure compliance with the permissible
axle loads and gross weight as well as with
the steerability of the tractor-machine com-
bination, make the following calculations.
Calculation of minimum ballast required on
the front axle:
0,2
Calculation of actual front axle load:
Calculation of actual gross weight:
Calculation of actual rear axle load:
Data required for the calculation
Unit Explanation
T
E
[kg] Empty weight of tractor 1)
T
F
[kg] Front axle load of empty tractor 1)
T
R
[kg] Rear axle load of empty tractor 1)
I
R
[kg]
Gross weight of rear-mounted attachment/rear-mounted ballast
of towed machine: I
R
= bearing load
4)
I
F
[kg] Total weight of front-mounted attachment/front ballast 2)
a [m]
Distance between center of gravity of front-mounted attachment/front ballast
and center of front axle
2), 3)
b [m] Tractor wheel base 1), 3)
c [m] Distance between center of rear axle and center of lower link balls 1), 3)
d [m]
Distance between center of lower link balls and center of gravity of rear-
mounted attachment/rear-mounted ballast
of towed machine: d = 0
3)
1) See Operator's Manual for the tractor
2) See Operator's Manual for front-mounted attachment
3) Measure
4) See Section 5.1 Machine data