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Operating Instructions
153 146 81
C 9.92
Operating the attachments
Rear attachment or front/rear combinations
1) Calculation of the minimum front ballasting G
V
min
G
V
min
=
G
H
·
(c+d)-T
V
·b
+0.2·
T
L
·b
a
+
b
Enter the calculated minimum ballasting required for the
front of the tractor in the table.
Front attachment
2) Calculation of the minimum rear ballasting G
H min
G
H
min
=
G
V
·a-T
H
·
b
+
X·T
L
·
b
b
+
c
+
d
Enter the calculated minimum ballasting required for the
rear of the tractor in the table.
(Value X for Holder tractor 0.25 4-wheel)
3) Calculation of the actual front axle load T
V tat
(If the minimum front ballasting (G
V min
) is not obtained with
the front attachment (G
V
), the weight of the front attach-
ment must be increased to the weight of the minimum front
ballasting.)
T
V
tat
=
G
V
·(a
+
b)
+
T
V
·b-G
H
·(c
+
d)
b
Enter the calculated actual and the maximum allowable front
axle load specified in the operating manual of the tractor in
the table.
4) Calculation of the actual total weight G
tat
(If the required minimum rear ballasting (G
H min
) is not ob-
tained with the rear attachment (G
H min
), the weight of the
rear attachment must be increased to the weight of the mini-
mum rear ballasting.)
G
tat
=
G
V
+
T
L
+G
H
Enter the calculated actual and the permissible total weight
specified in the operating manual of the tractor in the table.
5) Calculation of the actual rear axle load T
H
tat
T
H tat
=
G
tat
-
T
V tat
Enter the calculated actual and the maximum allowable rear
axle load specified in the tractor operating manual in the
table.