80-0000010B OM
129
It is not allowed to reduce brakes pedal travel to less than the values specified in subsection
3.7.3.1, as it leads to premature wear of the friction discs and overheating of the brakes.
1 – locknut; 2 – adjusting bolt; 3 – left pedal; 4 – right pedal
Figure 3.7.3 – Service brakes control adjustment
ATTENTION: INGRESS OF LUBRICANT INTO DRY FRICTION BRAKE CAUSES OILING
OF THE FICTION DISCS, REDUCE OF FRICTION FORCE BETWEEN THEIR WORKING
SURFACES – THE BRAKES “DO NOT GRIP”. IN THIS CASE DISMANTLE THE BRAKE,
ELIMINATE OIL LEAKAGE, AND RINSE OILED DISCS WITH BENZINE AND LET THEM DRY
FROM 5 TO 8 MINUTES. AFTER ASSEMBLY ADJUST THE SERVICE BRAKES CONTROL,
AS SPECIFIED ABOVE!
3.7.3 Parking brake
As a parking brake separate brake is used with manual continuous drive. The parking
brake type is dry.
The parking brake is mounted on the shell of the right service brake. When tractor is
moving rotation from differential cross 2 (figure 3.7.4) through shaft 3 is transmitted to friction
discs 5. When shifting parking brake lever 17 (figure 3.7.5) towards yourself pressure discs 4
(figure 3.7.4) rotating relatively each other, move apart, braking friction discs 5 and shaft 3
connected to them, which is connected to differential cross 2, blocking through planetary gears
1 axle shaft gears 7 of the differential, hub and final drives and tractor wheels. It is allowed to
use parking brake short moment for braking of the tractor if the service brakes are out of order.
1 – planetary gear; 2 – differential cross; 3 – parking brake shaft; 4 – pressure discs; 5 – friction
discs; 6 – parking brake housing; 7 – axle shaft gear.
Figure 3.7.4 – Parking brake installation
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