Track Widths - Valtra T144 Operator's Manual

4. Maintenance
Tyre
650/65R42 MITAS AC65
650/65R42 MITAS SST
650/65R42 TRELLEBORG TM800
650/65R42 NOKIAN TRI2
650/75R38 MICHELIN MACHXBIB
650/75R38 MITAS SFT
650/75R38 TRELLEBORG TM900
650/75-38 NOKIAN FOR KING T
710/60R38 MICHELIN XEOBIB
710/60R42 MICHELIN XEOBIB
710/70R38 MICHELIN MACHXBIB
710/70R38 MITAS AC65
710/70R38 TRELLEBORG TM800
NOTE:
If the tractor has tyres not listed in the table, the tyre parameter can be calculated
with the following formula:
X = Y / (2π)
X = Tyre parameter
Y = Rolling circumference of the tyre
Example:
The rolling circumference of the tyre is 5420 mm.
X = 5420 / (2π) = 863
The tyre parameter for the tyre is 863.
4.8.2

Track widths

The track width is measured between the middle of the tyres. If needed, adjust
the track widths.
IMPORTANT: The maximum allowed width of the tractor is 2550 mm (if larger
width is not nationally allowed).
In many work applications, it is advisable to adjust the track widths so that the
track made by the front tyres is covered by the track made by the rear tyres.
When using narrow track widths for the rear axle, check that the lower links do
not touch the tyres. When required, lock the side regulators.
IMPORTANT: According to the EU directives the smallest allowed distance
between the side of the tyre and the mudguard is 40 mm and between the top of
the tyre to the mudguard is 60 mm.
Parameter value
923
923
920
923
917
922
929
937
852
903
926
910
918
- 334 -