2022.3-0000010 OM
228
b) during operation of tires on doubled wheels:
(considering a permissible load on a tire during operation of tires on doubled wheels):
1.7
f
G
doubl.
=
f
G
1.7
Z
G
doubl.
=
Z
G
f
G
doubl.
=
7
,
1
f
G
Z
G
doubl.
=
7
,
1
Z
G
where
f
G
doubl.
and
Z
G
doubl.
are calculated loads for pressurization of tires during
operation of tires on doubled wheels.
Further according to the calculated loads from Table 4.1 of loading instructions, tire
pressure shall be determined (subsection 4.2.8 “Selection of tires internal pressure in de-
pending on operating conditions and load on the tractor axles, and tires operating rules”).
For operator convenience tables 4.2 and 4.3 tire pressure standard during operation
on doubled wheels – distribution of load on accuracy degrees and indication of the corre-
sponding value of tires pressure.
Tractor controllability criterion calculation:
- without water solution in front tires
- with water solution in front tires
,
where
f
is load on the tractor front axis, ;
k
f
is tractor controllability criterion;
M is tractor operating weight (during calculation ballasts weights in the tractor oper-
ating weight
are not taken into account), kg;
m
3
– weight of water solution in front tires of tractor, kg.
g is a value equal to 9.81 m/s
2
ATTENTION: COUPLING OF THE IMPLEMENTS TO THE TRACTOR SHALL NOT
RESULT IN EXCESS OF PERMISSIBLE AXIS LOADING AND LOADS ON THE TRAC-
TOR TIRES!
ATTENTION: MINIMUM WEIGHT OF THE IMPLEMENTS COUPLED AND BAL-
LAST WEIGHTS USED SHALL ALWAYS MAKE NOT LESS THAN VALUES AT WHICH
LOAD ON THE FRONT TRACTOR WHEELS IN STRUCTURE OF MTU SHOULD AL-
WAYS MAKE NOT LESS THAN 20% OF THE TRACTOR OPERATING WEIGHT, AND
THE CONTROLABILITY CRETERION SHOULD MAKE NOT LESS THAN 0.2!
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