New Holland Workmaster 50 Operator's Manual page 110

The following chart gives the load carrying capacity of the rear tire at the pressure indicated.
Tire size Cold Inflation Pressure - kPa (psi)
90 100
kPa kPa (
(13 14.5
psi) psi)
Maximum load per tire - kgs
13.6 8 ply 1060 1120 1180 1230 1285 1340 1395 1450 1500 1550 1370
-28
10 1060 1120 1180 1230 1285 1340 1395 1450 1500 1550 1660 1650 1700 1750
ply
12 1060 1120 1180 1230 1285 1340 1395 1450 1500 1550 1660 1650 1700 1750
ply
8 ply - -
14.9
-28
- -
10
ply
- -
12
ply
Tire Size
18.4-24
To avoid the possibility of tire creep (movement of the tire on the rim), tire pressure below 90 kPa (13 psi) should
not be used with cross ply tires for operations having a high torque requirement, e.g., sub-soiling, heavy transport,
etc. When mounted implements are used on tractor, loads may be increased by 20 % with no increase in inflation
pressure, if operated at speeds up to 6 km/h (4 mph).
For haulage service, it is recommended that the tire be inflated to the maximum pressure stipulated in the table.
The above chart is for guidance only. For exact information regarding inflation pressures and loads for your particular
tires, consult your dealer.
6 - WORKING OPERATIONS
Rear tire pressure and permissible loads(cross ply tires)
110 121 131 141
kPa kPa kPa kPa (
(16 (17.5 (19 20.5
psi) psi) psi) psi)
1410 1475 1545 1610 1675 1740 1810 1880 -
1410 1475 1545 1610 1675 1740 1810 1880 1930 1975 2020 -
1410 1475 1545 1610 1675 1740 1810 1880 1930 1975 2020 2070
120 kPa
8 ply 2390 kg
152 159 169 179
kPa kPa kPa ( kPa
(22 (23 24.5 (26
psi) psi) psi) psi)
Cold Inflation Pressure - kPa
140 kPa
Maximum load per tire - kg
2600 kg
6-26
190 200 210 221
kPa kPa kPa kPa (3
(27.5 (29 (30.5 2 psi)
psi) psi) psi)
1650 - -
1660
- -
150 kPa 165 kPa
2760 kg 3020 kg
228
kPa
(33 p-
si)
-
-
1180
-
-
2120