Section F. Adjustments Belarus - 90/92 Operating manual
67
IMPORTANT! If the brake band has
gross wear, turn the eccentric axle on
180
º
, choosing the excessive gaps
between the brake band and the drum
(flat on the left). Then fix the shaft by
stop plate (17) and bolt (16).
After several external adjustments
eccentric axle 15 (figure 2) can adopt
extreme left position (the flat “C” will be
on the left in vertical position), it means
that external adjustment margin is
exhausted. In this case turning eccentric
axle anti clockwise, put it into initial
position (vertical flat on the right), after
that perform adjusting operations, as
described above (during assembly at the
manufacturer or after PTO repair).
When adjustment is made correctly,
lever 1 (figure 1) in position “on” or “off”
shouldn’t reach control panel groove
edge by at least 30 mm, and accurately
pass through neutral position.
In some lots of tractors is possible the
absence of external readjustment
mechanism of control of PTO (position
15,16,17 figure 2). In this case do adjustment
as shown above for adjustment of the control
of PTO after repair or during assembly at the
manufacturer. Tractors with small cab have
the dimension "B" 50-60 mm. Efficiency of
PTO brakes, absence of slippage depend
only on spring mechanism, primarily on
availability of free operation zones, and
relative levers. PTO slippage means that
spring mechanism or levers face additional
hindrance when shifted, due to absence of
lubrication in joints, increased staining,
abutting (touch) against adjacent tractor
parts, etc.
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