Belarus 1025/1025.2/1025.3
Section H. Adjustments
H17
Checking and adjusting two-
wire braking valve of the
pneumatic system and drive
thereof
Make all adjustments with tractor brake
controls in free position.
1. Connect pressure gauge with scale at
least 10 kgf/cm
2
to drive connecting
head (with yellow cover) of the tractor
pneumatic drive
Switch on compressor and fill cylinder
with air up to pressure 7.7...8.0
kgf/cm
2
by pressure gauge on the
instruments panel
Air pressure by pressure gauge
connected to control head (with yellow
cover), with fully pressed interlocked
wheel brakes, or fully engaged parking
brake, should be at least 7.7 kgf/cm
2
.If
it is less then the above-given value,
perform the following operations:
Check if there is clearance of 1…2 mm
between pin (3) and upper grooves’
edges in levers. If there is no
clearance, pull out pin(3) and adjust
length of tie-rod using tip (2).
Check and, if necessary, adjust loading
of spring (4) to dimension 37 mm by
turning nuts (1), and secure them with
cotter pin.
If air pressure by pressure gauge
connected to the head didn’t reach
required value, perform the following
operations:
Disconnect tie-rod from eyelet (7) and
remove rubber sheath (5) from brake
valve to get access to nut (6).
Unscrew eyelet (1) by 2...3 turns , and
by unscrewing nut (6) set air pressure
to value at least 7.7.
9. Screw in eyelet (7) to the end inside
nut (6), and secure eyelet with cotter pin.
10. Put on sheath (5) and connect tie-rod
to eyelet (7).
IMPORTANT!
When brake valve and its
drive are correctly adjusted, air
pressure in the connecting control
head (with yellow cover) should equal
zero, with interlocked wheel brakes’
pedals not pressed, and parking brake
fully disengaged.
2.
3.
4.
5.
6.
7.
8.
Summary of Contents for 1025 2008
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