11-tormoznaya-sistema.html
11. Brake systemSpecifications
General information |
Brake system |
With double diagonal division of contours, with disk brake mechanisms of all wheels |
Pressure in brake lines, atm |
- At effort to pedals of a brake of 500 N (the engine is switched off)
|
28 ÷ 33 |
- At effort to pedals of a brake of 200 N (the engine is started)
|
75 ÷ 90 |
The maximum admissible pressure drop during 2 mines |
8 % |
Maximum admissible difference of thickness |
0.01 |
Roughness (Ra) of working surfaces of brake disks and drum of the parking brake, micron |
0.5 ÷ 3.5 |
Thickness of overlays of brake shoes at turning on of the alarm system about their wear, mm |
3.0 |
Minimum thickness of frictional overlays of the parking brake, mm |
1.5 |
Diameter of a drum of the parking brake, mm |
180 |
Radial palpation of a working surface of a drum of the parking brake, mm |
0.1 |
Brake mechanisms of forward wheels |
External diameter of a brake disk, mm |
Models 725tds, 728i/iL, 730d, 730i/iL, 735i/iL |
316 |
Models 740i/iL |
324 |
Models 740d, 750i/iL |
334 |
Minimum thickness of brake disks, mm |
Models 725tds, 728i/iL, 730d, 730i/iL, 735i/iL |
26.4 |
Models 740i/iL |
28.4 |
Models 740d, 750i/iL |
30.4 |
Brake mechanisms of back wheels |
Axial palpation of a working surface of a brake disk (on the greatest diameter), mm |
At the established disk |
0.2 |
At the removed disk |
0.04 |
External diameter of a brake disk, mm |
Models 725tds, 728i/iL, 730d, 730i/iL, 735i/iL, 740i/iL |
324 |
Models 740d, 750i/iL |
328 |
Minimum thickness of brake disks, mm |
Models 725tds, 728i/iL, 730d, 730i/iL, 735i/iL, 740i/iL |
10.4 |
Models 740d, 750i/iL |
18.4 |
Efforts of a tightening of carving connections, Nanometer |
Brake drum/disk to a wheel nave |
16 |
Support (forward) to a rotary fist |
110 |
Support (back) to the longitudinal lever to a suspension bracket/support of the bearing of a wheel |
67 |
Directing finger of a support |
30 |
The wheel brake cylinder to directing brake shoes of a back wheel |
10 |
Directing back brake shoes to the longitudinal lever to a suspension bracket/support of the wheel bearing |
65 |
Couplings of brake tubes and hoses |
18 |
Brake hose to a support |
19 |
GTTs to the vacuum amplifier of brakes |
26 |
The ABS control unit to the hydromodulator |
3 |
The pressure sensor to the hydromodulator |
20 |
The wheel sensor to a rotary support/support of the wheel bearing |
9 |
The sensor of cross-section acceleration to a body |
8.6 |
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