Service Brake Adjustment Of "Belarus-1822.3/2022.3 - Belarus 1822.3 Operator's Manual

3.8.3 Service brake adjustment of "BELARUS-1822.3/2022.3"

1, 2 – main cylinder; 3 – fork; 4 – nut; 5 – bolt; 6 – pin; 7 – lock-nut; 8, 9 – pedal; 10
Figure 3.8.3 – Adjustment of pedal free play and brake pedal position
To adjust the service brakes of the tractor proceed as follows:
1. Set pads of the pedals 8, 9 (figure 3.8.3) in one plane with a help of the stop ad-
justing bolts 5, screwing them in to 20 3 mm. Lock the nuts 4.
2. Adjust free play of the pedals 8, 9 within 4 ... 8 mm. To do this, proceed as fol-
lows:
- unsplint and remove the pins 6 and disconnect the forks 3 from the stems of the
pedals 8, 9;
- turn the lock-nuts 7 off by several revolutions and by screwing the forks 3 in or
out, shorten or lengthen the hydraulic cylinders 1, 2 rods, to meet the required free play of
the pedals;
- lock the nuts 7, fit the pins 6 and cotter-pin them. The pedal free play of 4...8
mm corresponds to 0.6...1.3 mm clearance between the piston and the pusher in each
main cylinder.
- the pedals should not be in contact with whatever components of the cab. The
height position of the pedal pads can be adjusted, if required, with the bolts 5 and by
changing the length of the hydraulic cylinder rods, providing the pedal free play within 4...8
mm.
3. Set the length of working cylinder 8 (figure 3.8.4) of the left brake to 205... 213
mm, if measured from the cylinder end face to the axis of the pin 4 which connects the
lever 5 with the fork 3, with the cylinder piston fully drawn in. The pin 4 stroke should be in
this case within the limits of 10 ...12 mm when applying force from 350 to 400 N on 60 mm
arm to the lever 5.
Carry out the adjustment by means of a fork 3, having performed the following op-
erations:
- disconnect the link 7 of the parking brake actuator from the lever 5;
- loosen the lock-nut 2 on the cylinder rod by several turns;
- turning the rod 1 of the working cylinder, adjust the cylinder length and pin stroke
of the working cylinder fork within the necessary limits;
- tighten the lock-nut 2, attach rod 7 of parking brake actuator.
– pipeline from main cylinder to working cylinder
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