2122.6-0000010 OM
98
Table 3.2.2
Load on tire, G, kg, at inner pressure, kPa
Tire
Load
index
*
Speed
symbol
*
Speed,
km/h
80
100
120
140
160
200
240
300
420/70R24
130
A8
10
20
30
40
1875
1720
1500
1400
2050
1845
1605
1500
2230
2030
1765
1650
2405
2210
1925
1800
2585
2335
2035
1900
2850
(at
190
kPa)
480/65R24
133
A8
10
20
30
40
1980
1865
1630
1520
2170
2050
1780
1670
2350
2225
1930
1810
2530
2395
2080
1950
2680
2530
2200
2060
3090
580/70R42**
158
D
10
20
30
40
4220
3815
3570
3400
4740
4285
4010
3820
5260
4760
4450
4235
5780
5225
4890
4655
6180
(at
180
kPa)
6375
(at
190
kPa)
7225
(at
210
kPa)
* - Load index and speed symbol are given on tire side.
** In tires 580/70R42 Bel-126
М
158D, it is allowed to set inner pressure of 100 kPa
only in outer tires (at operation with twin tires).
Rates of loads are provided for tires with indicated load index and speed symbol.
Pressure shall be set in “cold” tires.
Performing operations which require large pulling force on the hook, set the pres-
sure as for the speed of 30 km/h.
When performing transport operations on roads with hard surface, increase pres-
sure by 30 kPa, but no more than maximum permissible pressure according to table 3.2.2.
If transport operations increase 60%, the warranty lifetime of the tire within the limits
of warranty storage time decrease by 30%.
Tractor operation with twinned tires is allowed only at the speed of 20 km/h.
Maximum permissible loads are given for single tires. Total permissible load G
1
for
tyres pair at twinning makes 1.7G, where G is permissible load on single tire according to
table 3.2.2.
When twinning tires, make sure the pressure in outer tires is 1,2 – 1,25 times lower
than the pressure in inner tires.
Permissible maximum pressure deviations in tires are (±10 kPa) according to ma-
nometer indication.
Front wheel tires 420/70R24
is an alternative configuration.
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