Zetor FORTERRA HSX 120, Operator'S Manual

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Gauges of the front wheels of the front drive axle of the tractors equipped with screwed footer discs
When using foot discs on a tractor with a power higher exceeding 100 hp, it is necessary to
take extra care and check and tighten the joints more often. It is not recommended to overload the
foot discs.
Change of wheel track is done by a change of rim and disc position.
Secure the tractor against movement first, heave the axle with a hoist and support.

Demount front wheels.

Unscrew nuts of screws connecting a disc with rim and protrude the screws.

Change wheel track by setting the rim to a requested position.

Mount the screws back with pads and lock with nuts.

Tighten nuts with a torque of 270 - 300 Nm.

The nut of front wheels to be tightened with a torque of 250 - 290 Nm.

After every release of a foot joint, tighten the screws to a prescribed value.

After travelling a distance of 100 m with an unloaded tractor, retighten the joints to a prescribed
torque.

After tractor run-in tighten the joints after 3 Mh.

After 10 Mh retest the nuts of discs and foots of wheel rim.
Possible adjustable tracks of the front wheels of the front driving axle of the tractors
Used tyres
Rim position
12,4-24 13,6R24 12,4-28 14,9-24
12,4R24 380/70R24 14,9R24
320/85R24 340/85R24 420/70R24
380/85R24
Front wheel tracks in mm
1630 - - -
1685 1770 - 1770
1780 1695 1770 -
1840 1920 1850 1920
1930 1850 1920 1850
1985 2070 1955 2070
2080 1955 2070 1955
WHEEL TRACK CHANG
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