Iveco Daily. Manual — part 304
2
WHEEL AND TYRES
D
AILY
Base - May 2004
The wheel rim represents the rigid structure of the wheel and
is identified by the following dimensions:
- diameter of the rim, measured at the base of the
circumferential groove (i.e., on the surface on which the
air chamber rests);
- width of the circumferential groove in the wheel rim (i.e.,
the distance between the surfaces on which the cover
rests).
The tyre has the following functions:
- to absorb the greater part of the jolts caused by roughness
of the road surface by utilising the elasticity of air;
- to generate on the ground the motive force supplied by
the engine necessary for the vehicle to move;
- to ensure the maximum grip and stability of contact
between the tyre and the road, with satisfactory tyre life;
- to withstand the forces generated by sudden braking,
hard acceleration and by the thrust of centrifugal force on
bends;
- to ensure the stability of the vehicle even at high speeds;
to ensure the steerability of the vehicle.
44928
Figure 1
1.
Tyre section rated width (mm)
2.
Tyre height-width ratio percentage e.g., H/S = 0.75
3.
Tyre structure (R = Radial)
4.
Wheel rim diameter in inches
5.
Load and speed index symbols
113: tyre load index on simple axis: 1150 kg
111: tyre load index on paired axis: 1090 kg
Speed category (N= 140 km/h)
6.
Designation of the manufacturer’s tyre:
XC A Tubeless (TL): tyre to be used with no inner tube.
44929
Figure 2
S
= Tyre section rated width (mm)
H
= Tyre height
D
= Max. utilisation diameter (Rx2)
R
= Radius under load (static)
Ø
= Fitting diameter
E
= Min. distance between centres in case of paired tyres
e
= Tyre deflection
CdR = Rolling circumference
WHEEL AND TYRES
3
D
AILY
DESCRIPTION
4
WHEEL AND TYRES
D
AILY
Base - May 2004
bar (kg/cm
2
)
3,0
3,25
3,5
3,75
4,0
4,5
4,75
5,0
5,25
5,5
6,0
205/70 R15 kg
front
1350
-
1500
-
-
-
-
-
-
-
-
106/104Q
rear
-
-
1500
1650
1740
1900
-
-
-
-
-
215/70 R15 kg
front
1460
-
1600
-
-
-
-
-
-
-
-
109/107Q
rear
-
-
1600
1700
1830
2060
-
-
-
-
-
225/70 R15 kg
front
1550
1650
-
-
-
-
-
-
-
-
-
112/110Q
rear
-
1740
1860
1960
2020
2240
-
-
-
-
-
bar (kg/cm
2
)
3,0
3,25
3,5
3,75
4,0
4,25
4,5
4,75
5,0
5,25
5,5
6,0
195/65 R16 kg
front
-
-
1400
1450
1550
1650
1700
1800
-
-
-
-
104/102Q
rear
2230
-
2600
-
-
-
-
-
-
-
-
-
185/75 R16 kg
front
1300
-
1480
-
1590
-
-
1800
-
-
-
-
104/102Q
rear
2440
2600
2760
-
2990
-
-
3400
-
-
-
-
195/75 R16 kg
front
1350
-
1520
1600
1700
1750
1850
1900
-
-
-
-
107/105P
rear
2560
-
2890
3100
3200
3400
3550
3700
-
-
-
-
225/75 R16 kg
front
1950
-
2100
-
2260
-
-
-
-
2640
-
-
118/116
rear
3630
-
3930
-
4240
-
-
-
-
5000
-
-
+6.50 R16
kg
front
-
-
1370
1570
1680
1750
1840
1940
2000
-
-
-
106/107L
rear
-
-
2600
3050
3240
3400
3560
3720
3900
-
-
-
+7.00 R16
kg
front
-
-
-
-
1840
-
2000
2120
2200
-
2380
2570
117/116L
rear
-
-
-
-
3600
-
3890
4150
4260
-
4360
5000
The pressures indicated refer to cold tyres and an outside temperature of 20ºC.
NOTE
Main tyres malfunctions:
1
-
excessive wear;
2
-
irregular wear;
3
-
vehicle pulls to one side.
1
Excessive speed on particularly uneven ground.
Tyres pressures too high.
Reduce pressures.
Sudden variations in speed, violent or harsh braking.
Avoid all unnecessary acceleration or braking.
Excessive speed with tyre pressures too low.
Check tyres pressures cold.
Truck overloaded.
Consult data on loads permitted.
NO
NO
YES
NO
YES
NO
YES
YES
YES
Reduce speed.
EXCESSIVE WEAR
WHEEL AND TYRES
5
D
AILY
TOOLS
TOOL NO.
DESCRIPTION
99305037
Electronic equipment for front wheel balancing on the vehicle
DIAGNOSTICS
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