82.3-0000010 OM
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5.4.3.5 Operation 25. Check and adjustment of front wheel toe-in
Adjustment of front wheel toe-in is carried out to prevent the front tires from prema-
ture breakdown.
ATTENTION: CHECK AND ADJUSTMENT OF FRONT WHEEL TOE-IN SHALL BE
CARRIED OUT EVERY 250 HOURS OF TRACTOR OPERATION, AND ALSO EACH
TIME WHEN THE FRONT WHEEL TRACK WIDTH IS CHANGED. BEFORE CHECKING
THE FRONT WHEEL TOE-IN, CHECK AND ADJUST, IF NECESSARY, THE PLAY IN
THE STEERING LINK JOINTS!
To make adjustments, perform the following:
1. Set the necessary tire pressure according to subsection 3.2.8 “Selection of opti-
mal inner pressure in tires depending on operational conditions and load on tractor axles,
instructions for use of tires” of section 3 “Intended use of tractor”.
2. Put the tractor front wheels in straight position by way of driving the tractor
straight ahead for not less than 3 meters on a horizontal ground with hard surface. Engage
the parking brake to avoid tractor movement.
3. Measure distance “А” (figure 5.4.24) between rim edges at the wheel center level
in the front and make visible marks in measurement points.
4. Disengage the parking brake, drive the tractor ahead in such a way that the front
wheels rotate by half revolution and measure distance “B” between the rim edges at the
wheel center level behind in the marked points.
5. If the value (“B”-“А”) ranges within 0 to 8 mm that means that the toe-in is adjust-
ed correctly. If the value (“B”-“А”) is below 0 or above 8 mm, perform the following:
а) leaving the tractor position unchanged, unscrew lock nuts 1 and 3;
b) rotating steering link tube 2 try to get value (“B”-“А”) ranging within 0 to 8 mm;
c) repeat operations, described in subclauses 3 and 4.
d) if value (“B”-“А”) falls within the limits of 0 to 8 mm, tighten steering link lock nuts
1 and 3 with a torque of 100 to 140 Nm, leaving the steering link length unchanged.
1, 3 – lock nut; 2 – adjusting tube of steering link.
Figure 5.4.24 – Front wheel toe-in adjustment scheme
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