Maintenance and Adjustment
80
410/420/430 - 001 8903 U1
UZEL
Front axle adjustment
(For MF 430 4WD tractor only)
Toe-in adjustment
20.11 SD model front axle with a limited slip differential
type is mounted on MF 430 4WD tractors.
Put two equal one-meter-long linear bars on the
wheel sides and lock them with two nuts on the wheel
hub stud bolt. (Fig. 118)
Note: The two bars should be fixed on their middle
so that they are perpendicular to the supporting
surface and parallel to the pinion shaft axis; align the
two bars.
Measure the distance in mm M between the bars
ends with a tapeline.
Note: Keep the minimum value, swinging the
measurement point.
Check that the difference of the measurements
between the wheel hubs diameters ends is within
the requested tolerance range.
The nominal toe-in value (A) is referred to the external
diameter of the wheel hubs flange, therefore the
measured value (M) at the bars ends must be related
to the ratio between length of the bar and flange
diameter (Fig. 119).
If toe-in is incorrect, operate with two wrenches on
the guide rods (1) screwing in and out the two joint
tie rods (3) equally till the toe-in is within the requested
tolerance. After adjusting, screw in the lock nuts (2)
of the guide rods (1) to the requested tightening
torque (Fig. 120).
Fig.118
Fig.119
Fig.120
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