
- do not decrease the inflation pressure of tires. Tractor units operation during the first
1500-3000 km of mileage provide on the roads with hard surface with the semi-trailer gross mass
no more than 12 tones,
After 1500-3000 km of mileage (50-100 hours of engine performance) implement the
works, specified in the paragraph “Maintenance”. Maintenance during the initial period of opera-
tion.
6.4 Truck Breaking In Truck Driving
Accurate truck driving is one of the most important conditions, which prolongs its oper-
ating life and faultless performance, and also allows to achieve the high middle driving speed with
minimum fuel.
Successful passing of the tough road is possible only with the skilled control of all truck
units. On soft ground, raw meadows, virgin snow and sandy surfaces movement shall be smooth,
without hitches, skidding and stops. Small snowdrifts and short lifts shall be passed with accelera-
tion.
On especially difficult areas (snow, mud, soft ground, sand and etc.), if necessary, de-
crease the inflation pressure of tires up to the definite range, which corresponds to the best off-
road performance at the given area, and lock the differential of the transfer Box, as
leading
wheels slipping upon loosing the truck mobility or driving with wheels slipping with un-
locked differential leads to the intensive wear-out of the transfer box differential and tires.
In case of heavy turning-on or turning-off of differential locks
and gear shifting of
the transfer box
it is necessary to push the truck (back and forward) and repeat the process
of shifting.
When passing the tough road with the possible truck slipping, the cross-axle differential
of the rear trailer shall be locked. The cross-axle differential lock increases the off-road perfor-
mance of the truck. With that it shall be preliminary turned on before passing the tough road area,
but not at the moment when the truck has already lost its mobility.
Locking shall be implemented after full stoppage of truck wheels. The cross-axle differ-
ential lock upon truck movement with speed no higher than 5 km/h considering the absence of the
wheels slipping. After turning the locking off it is necessary to make sure of full actuation of the
lockout mechanism, with that the indicator 21 shall light up in accordance with figure 25 and the
indicator 25 in accordance with figure 32. Partial engagement of the lockout mechanism could
lead to gearbox destruction.
After passing the tough road it is necessary to turn off the differential locks switch
of the rear trailer and make sure of turning the clutch off (indicator shall blink off).
The cross-axle differential lock is allowed only in exceptional circumstances, when the
other measures for increasing of off-road performance are taken (necessary tire pressure is estab-
lished, differential locks of the transfer box is turned on).
In other cases of movement if the wheel slipping is absent, unlock the differential of the
transfer box in order to avoid extra pressure in the transmission. Select the low gear in the transfer
box when passing tough roads and also rapid scents.
Select gears of transfer box only after full stop of the truck, and do not turn on neu-
tral gear of the transfer box, when the gear box is turned on and, when box of auxiliary
power takeoff is turned off upon the
working engine without truck movement.
195
Содержание 4320M
Страница 1: ...URAL 4320М TRUCK and its Modifications ...
Страница 34: ...33 Figure 17 Truck Ural 43206 0551 71 Figure 18 Truck Ural 43206 3111 79 Figure 19 Truck Ural 43206 3511 79 ...
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Страница 177: ...Figure 140 Installation of left and right side safety devices 171 ...
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