11-tormoznaya-sistema.html
11. Brake systemSpecifications
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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)
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28 ÷ 33 |
- At effort to pedals of a brake of 200 N (the engine is started)
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75 ÷ 90 |
| The maximum admissible pressure drop within 2 min. |
8% |
| Maximum admissible difference of thickness |
0.01 |
| 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 beating of a working surface of the reel of the parking brake, mm |
0.1 |
|
Brake mechanisms of forward wheels |
| Outer 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 beating of a working surface of a brake disk (on the largest diameter), mm |
| At the established disk |
0.2 |
| At the removed disk |
0.04 |
| Outer 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 tightening of threaded 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 wheel bearing suspension bracket/support |
67 |
| The directing support finger |
30 |
| The wheel brake cylinder to a guide of brake shoes of a back wheel |
10 |
| Guide of 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 |
| Pressure sensor to the hydromodulator |
20 |
| The wheel sensor to a rotary support / support of the wheel bearing |
9 |
| The sensor of cross acceleration to a body |
8.6 |
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