Operation 36. Check / Adjustment Of Wheel Toe-In - Belarus 2022.6 Operator's Manual

5.4.3.3 Operation 36. Check / adjustment of wheel toe-in

Adjustment of front wheel toe-in is carried out to prevent front tires from premature
breakdown.
ATTENTION: CHECK AND ADJUSTMENT OF FRONT WHEEL TOE-IN SHALL BE
CARRIED OUT AFTER EVERY 250 HOURS OF TRACTOR OPERATION, AND AFTER
EACH TIME THE FRONT WHEEL TRACK WIDTH IS CHANGED. BEFORE CHECKING
FRONT WHEEL TOE-IN, CHECK AND ADJUST IF NECESSARY, THE STEERING
JOINT CLEARANCES!
To make necessary adjustments, do the following:
1. Make sure there are no clearance gaps in hinges of the steering mechanism of
the pivot supporting block bearings and wheels.
2. Set front wheels into straight position corresponding to the direct tractor move-
ment for which drive the tractor on hard flat surface for not less than 3 meters and stop.
Engage the parking brake to avoid tractor movement.
3. Measure distance "А" (figure 5.4.25) between rim edges of front wheels 1 and 5
(figure 5.4.25) at the height of front wheel centers, and make visible marks in the meas-
ured places.
4. Disengage the parking brake, drive the tractor forward so that front wheels turn
by half revolution and measure distance "B" between wheel rim edges at the height of
wheel centers at the back in the marked points.
5. If the value ("B"-"А") is within 0 to 8 mm that means the toe-in is correctly ad-
justed. If the value ("B"-"А") is below 0 or more than 8 mm, do the following:
а) leaving the tractor position unchanged, unscrew lock nuts 2 and 4;
b) rotating steering link tube 3, try to get the value ("B"-"А") within 0 to 8 mm;
c) repeat the operations described in subclauses 4 and 5.
d) if the value ("B"-"А") is within the limits from 0 to 8 mm, tighten steering link lock
nuts 2 and 4 with a torque from 100 to 140 Nm, leaving the steering link length unchanged.
1, 5 – rim edge of front wheel; 2, 4 – locking nuts; 3 – adjustable tube.
Figure 5.4.25 – Diagram of front wheels toe-in adjustment
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2022.6-0000010 OM