MTW BELARUS 952.5, Руководство оператора

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952.5-0000010 OM
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5.4.3.3 Operation 31. Check and adjustment of wheels toe-in
Adjustment of front wheels toe-in is carried out to prevent the front tires from prema-
ture breakdown.
ATTENTION: CHECK AND ADJUSTMENT OF FRONT WHEELS TOE-IN SHALL
BE CARRIED OUT IN EVERY 250 HOURS OF TRACTOR OPERATION, AND AFTER
EACH TIME THE FRONT WHEELS TRACK WIDTH IS CHANGED. BEFORE CHECKING
THE FRONT WHEELS TOE-IN, CHECK AND ADJUST, IF NECESSARY, THE STEER-
ING JOINTS PLAYS!
To make adjustments, perform the following:
1. Set necessary tire pressure acc. to the subsection “Selection of optimal inner
pressure in tires depending on operational conditions and load on tractor axles”
of section 3
“Intended use of tractor”.
2. Set the front wheels in straight position by way of running the tractor straight
ahead for not less than 3 meters along the horizontal level ground. Engage the parking
break to avoid tractor movement.
3. Measure distance “ А ” (Figure 5.4.19) on wheel centre level at the front and make
visible marks in locations of measurements.
4. Disengage the parking break, drive the tractor ahead in such a way that the front
wheels turn by half revolution and measure distance “B” between rim edges on wheel cen-
tre level from behind in the point determined and marked before.
5. If the value (“B”-“ А ”) ranges within 0 to 8 mm that means that the toe-in is cor-
rectly adjusted. If the value (“B”-“ А ”) is lower 0 or more than 8 mm, perform the following:
а ) leaving the tractor position unchanged, unscrew 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 4 and 5.
d) if value (“B”-“ А ”) falls within the limits of 0 to 8 mm, tighten steering link nuts 1
and 3 with torque of 100 to 140 Nm, leaving steering link length unchanged.
1, 3 – lock nut; 2 – adjustable steering link tube.
Figure 5.4.19 – Front wheels toe-in adjustment scheme
B