Check/Adjustment Of Service Brakes Control, Operating In Oil Sump - Belarus 922.6 Operator's Manual

- screw in and screw out adjusting rod-bolts 6 and 10 of the right and left service
brakes;
- lock the rod- bolts.
6. Check the efficiency of service brakes operability during tractor movement along
dry road with hard surface with the clutch off. When the interlocked brake pedals are de-
pressed with the force of 550 to 600 N, the length of braking path shall not exceed 6,4m
with the tractor travel speed of 20 km/h. Unevenness of tractor movement in the process of
braking shall not exceed 0,5m. If necessary, adjust the simultaneity of braking start by
means of one of adjustable bolt-links 6 or 10.

5.4.3.4.2 Check/adjustment of service brakes control, operating in oil sump

ATTENTION: IT IS REQUIRED TO CHECK AND ADJUST THE BRAKE SYSTEM AS
WELL AS ELIMINATE ANY FAILURES IN IT ONLY WITH THE ENGINE OFF AND THE
TRACTOR BEING FIXED IN THE HORIZONTAL POSITION BY MEANS OF STOPS UNDER
THE WHEELS WHICH EXCLUDE THE TRACTOR SPONTANEOUS MOVEMENT! ONLY
DEALERS ARE ALLOWED TO MAKE ADJUSTMENTS OF THE BRAKE SYSTEM AND ELIM-
INATE ANY FAILURES!
1, 2 – main brake cylinder; 3 – yoke; 4 – nut; 5 – adjustable stop bolt; 6 – pin; 7 – counter
nut; 8, 9 – pedal; 10 – pipeline connecting two main brake cylinders.
Figure 5.4.25 – Adjustment of pedal free travel of service brake control
Adjustment of the tractor service brake control shall be performed in the following order:
1. Set cradles of pedals 8 and 9 (Figure 5.4.25) in the same plane by means of adjusta-
ble stop bolts 5 by screwing them to the depth of (203) mm. Lock nuts 4.
2. Check the pedals free travel. Free travel of pedals 8, 9 shall be within 4 to 8 mm. If this
condition is not observed, adjust the pedals free travel doing the following operations:
- unsplint and remove pins 6 and disconnect yokes 3 from pedals 8 and 9 rods;
- unscrew counter nuts 7 by several resolutions, then by screwing or unscrewing yokes 3
shorten or lengthen the rods of main brake cylinders 1 and 2 to get the required pedal free
movement;
- lock nuts 7, mount pins 6 and splint them. Free travel of pedals within 4 to 8 mm corre-
sponds to the clearance from 0,6 to 1,3mm between the pusher and the piston of each main
brake cylinder;
- the pedals shall not contact the cab elements. The arrangement of pedal cradles ac-
cording to the height shall be adjusted by means of bolts 5 and the length of main brake cylinder
rods if necessary, ensuring the pedal free travel from 4 to 8 mm.
3. Check the length of operating brake cylinders 1 and 14 (Figure 5.4.26). The operating
cylinder length shall be (2002) mm measured from the cylinder attaching point to the axis of
the pin which connects levers 5 and 9 with yokes 3 and 12 correspondingly, with the operating
brake cylinder rod pushed inside to the extreme position, as shown in Figure 5.4.26. In case this
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922.6-0000010 OM