HATTAT A90 - Specifications; Adjusting Track Width; Front Axle; 2 WD Axle

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9.6. Adjusting track width
When track widths are adjusted or larger tyres/tires
fitted, the turning angles have to be
checked/adjusted for max turning angle of the front
axle on both sides. Check also when using chains
that the distance from the cab to the tyres/tires
does not go below 80 mm.
Check that the distance from parking lights to the
outer sides of the tyres/tires does not exceed 400
mm.
9.6.1. Front axle
Apply the parking brake or scotch the rear wheels
to ensure the tractor cannot move.
9.6.1.1. 2WD axle
- Raise the front end with a jack under the centre of
the front axle.
- Loosen and remove the bolts of the front axle (1)
and tie rods (2)
- Pull out the axle until the desired track width is
obtained.
- Move both tyres/tires the same distance.
- The front axle has three different track width
possibilities.
9.6.1.2. Powered front axle
Tractor models Front tire The front tire track width
A70 / 80Turbo 4x2
7.50-20 1420 -1610
A70 / 80 Turbo 4x4
380/85R24 1515 - 1730
A90/100/110 Turbo 4x2
7.50-20 1420 -1610
A90/100/110 Turbo 4x4
380/85R24 1420 -1610
The standard track widths are underlined.
Adjusting front and rear wheel track widths is done
in the same way.
Track width can be adjusted by changing the
position of the wheel rim in relation to the central
disc or by turning the wheel around (as shown
above). Make sure that the arrows on the upper
part of the tyres/tires are pointing forwards.
IMPORTANT: When altering the track
width or fitting a front-mounted loader,
check that the wheels do not go too far
at maximum steering lock and axle
pivoting movement, if necessary restrict the
steering lock with the limiters fitted on the axle.
IMPORTANT: The toe-in of the front
wheels must be checked again after
any adjustment of the track width. The
widest track width must not be used when running
with large front-mounted loaders. (Loadings on the
section ”Specifications”).
IMPORTANT: Lubricate the wheel nuts
and tighten them to the recommended
values. Wheel nuts must be retightened
periodically (see technical
specifications).