Brakes; General Information - Belarus 1822.3 Operator's Manual

3.8 Brakes

3.8.1 General information

The "BELARUS - 1822.3/1822 .3/2022.3/2022 .3" tractor is equipped with disk
brakes operating in oil bath.
1 – friction disk; 2 – spring; 3 – gasket; 4 – cover; 5 – roller bearing; 6 – collar; 7 –
shaft; 8 – ball; 9 – intermediate disk; 10 – pressure disk; 11 – cam; 12 – pusher; 13 –
spring; 14 – bolt; 15 – washer; « » –hole for oil delivery.
The left and the right service multi-disk brakes are installed on the pinion drive shafts
of the rear axle drives. Each brake consists of the following components:
- six friction disks 1 (figure 3.8.1) with metal-ceramic linings;
- five intermediate disks 9;
- two pressure disks 10, tightened with four springs 2;
- six steel balls 8, located in drop-shaped cups of the pressure disks;
- two pushers 12 with springs 13, a cam 11;
- a shaft 7, mounted on two roller bearings 5 with a collar 6;
- a cover 4 with gaskets 3, fixed with seven bolts to the rear axle tube.
When pressing the service brake pedal, the force is transmitted to the shaft 7
through the hydraulic actuator system and the cam 11 turns, influencing the pushers 12.
The pressure disks 9 turn relative to each other, and as a result the balls 8 run out of the
cups and open the pressure disks. The brake disk pack (1,9, 10) is compressed and
brakes the shaft, on which the brake is mounted. The brakes disk lubrication and cooling is
effected by means of oil delivery from transmission lubrication system through the hole "A".
The backlash in friction pairs (1,5
the amount up to 3 pcs.
Figure 3.8.1 – Service brakes
0,3) mm is ensured by mounting gaskets 3 in
102
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2022.3-0000010 OM