Using Chains; Using Twin-Mounted Wheels - Valtra T144 Operator's Manual

4. Maintenance
650/65R38,
650/65R42,
650/75R38
620/70R42
520/85R42
Vehicle overall width over 2 550 mm
1)
2) Standard track width
Fixed discs
650/75R38
650/65R38, 650/65R42
20.8R38, 540/80R38
710/60R42, 710/70R38
4.8.3

Using chains

Chains can be used on the front wheels only when they are also used on the rear
wheels.
IMPORTANT: Use chains only with tyres that are designed for chain usage.
Follow the chain manufacturer's installation and user instructions carefully.
IMPORTANT: With larger tyres and a suspended cab (extra equipment), the
space between the mudguard and the tyre may become too small (under 25
mm). If the space is not large enough when you need to use the chains, adjust
the mudguards.
• Make sure that the chains are correctly tightened to avoid damaging the
mudguards.
4.8.4

Using twin-mounted wheels

Twin-mounted wheels can be used for decreasing the surface pressure, but not
for obtaining better traction.
1. Maximum allowed loading of twin-mounted wheels is one tyre multiplied by
1.76.
IMPORTANT: Do not exceed the maximum permitted axle loading even if the
tyres allow a heavier load.
2. If dual/extension wheels are used, check that the tyre size does not exceed
the permissible tyre sizes.
3. Adjust the track width of the inner wheels to the minimum value.
4. Adjust the turning angle, if necessary.
1) 1)
2 114 2 012
1) 1)
2 113 2 014
2 012
1)
2 122
Standard
Wheel turned around
Standard
Standard
Wheel turned around
Standard
- 336 -
– –
1 713 –
1 722 –
Track width
1 850
1 676
1 850
1 850
1 676
1 830
1) 2)
1 910 1 808
1) 2)
1 910 1 811
1 918
2)
1 808
Valve
Inside
Outside
Inside
Inside
Outside
Outside