URAL Motorcycles URAL-4320-60, Руководство по эксплуатации

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5.5.1.9 Brake system tightness. The tightness system is provided for in the brake
chambers. Sealing connection 5, according to Fig. 78, and sealing connection 4, according to Fig.
79, are connected with pipeline set to the sidemember level.
5.5.2 Pneumatic Drive of the Service Brakes
The schematic diagram of the brake drive with outlets to the 6
х 6 truck trailer is shown in
Fig. 82.
1-towing device; 2-oil separator; 3-two-pointer gauge; 4-pressure regulator with adsorber; 5-adsorber res-
ervoir; 6-four-line safety valve; 7-pressure drop sensor; 8-front axle brakes’ air reservoir; 9-rear bogie
brakes’ air reservoirs; 10, 16, 19, 22, 28-check outlet valves; 11-condensate drain cock; 12-trailer brake
with break-away valve; 13-feeding coupling head; 14-control coupling head; 15-brake chambers with
spring brake; 17, 27-ABS modulators; 18-service brake acceleration valves; 20-parking brake acceleration
valve; 21-parking brake valve; 23-trailer and parking brake cylinder; 24-return valve; 25-non-brake con-
sumers air reservoir; 26-brake chambers; 29-parking brake air valve; 30-pneumatic cylinder of engine stop;
31-brake valve; 32-brake actuation sensor; 33-compressor;
а -to air-hydraulic booster (AHB)
Fig. 82 - Brake Pneumatic Drive Diagram with outlets to the 6 х 6 truck trailer
Compressed air from the compressor enters the
oil separator 2
, pressure regulator 2 with
adsorber 4,
four-line safety valve
6 and
adsorber reservoir
5. The air is cleared of moisture, oil, after
which the air is distributed along the contours:
- the first main circuit consists of an air cylinder 8, the lower section of the brake valve
31, modulators 27, brake chambers 26.
- the second circuit consists of air cylinders 9, the upper section of the brake valve 31,
service brake acceleration valves 18, spring brake chambers 15, modulators 17.
- the third circuit consists of air cylinder 23,
trailer brake with break-away valve
12 with
double-line drive,
feeding coupling head
s13,
control coupling head
s 14 for connecting trailers with
brake double line drive.