MTW BELARUS 952.5, Руководство оператора, Страница: 81 / 188

952.5-0000010 OM
81
Rates of loads on single tires of tractors “BELARUS-952.5” to select operation
mode at various inner pressures and speeds are provided in table 3.2.
Table 3.2
Loading of tire, kg,
at inner pressure, kPa Tire
Load
index**
Speed
symbol**
Speed,
km/h
80 100 120 140 160 180
360/70R24 122 A8
10
20
30
40
1500
1340
1165
1090
1635
1450
1265
1180
1775
1580
1375
1285
1910
1720
1500
1400
2045
1845
1605
1500
2250
(190
kPa)
18.4R34 144 А 8
10*
20
30
40
3030
2480
2160
2020
3330
2730
2375
2220
3615
2960
2575
2410
3915
3210
2790
2610
4200
3440
2995
2800
* - inner pressure shall be increased by 25 %
** Load index and speed symbol (see on tire sidewall).
Rates of loads are provided for tires with indicated load index and speed symbol.
Pressure shall be set in “cold” tires.
Performing operations, requiring large pulling force on the hook, set the pressure as for
the speed of 30 km/h. When performing transport operations on roads with solid sur-
face increase the pressure by 30 kPa.
Tractor operation with twinned tires is permitted only at the speed of 20 km/h.
Total loading capacity of twinned tires shall not exceed the loading capacity of a single
tire by more than 1,7 times;
When twinning, make sure the pressure of outer tires is 1,2 – 1,25 times lower, than the
pressure of inner tires.
3.2.8.2 Tire inflation
Inflate tires through an air bleed valve of a pressure regulator 1 (figure 3.2.2), for this do
the following:
- let air out of a balloon 3 of the pneumatic system through a condensate removing
valve;
- unscrew a winged nut 2 of the air bleed valve cap;
- connect a pipe to inflate tires to the air bleed valve cap and to a tire valve;
- start the engine and inflate the tire to reach a required pressure, controlling it with a
pressure gage;
- detach the pipe from the tire valve and from the air bleed valve cap;
- screw the winged nut back on the air bleed valve cap.
ATTENTION: AS PRESSURE IN THE BALLOON GOES UP TO 0.77 MPA, THE COM-
PRESSOR IS SWITCHED TO IDLE RUNNING BY THE PRESSURE REGULATOR AND
TIRE INFLATION STOPS AUTOMATICALLY. FOR THIS REASON CHECK THE PRESSURE
OVER THE INDICATOR ON THE DASHBOARD FROM TIME TO TIME AND, IF NECES-
SARY, REDUCE IT THROUGH THE CONDENSATE REMOVING VALVE!
1 – pressure regulator; 2 – winged nut; 3 – balloon of the pneumatic system.
Figure 3.2.2 – Tire inflation