Note. Separate characteristics are also given in the text of the Chapter and, if they are mandatory, are highlighted in bold.
Design | Hydraulic, double-circuit with a vacuum booster. Electronic anti-skid system (stability stabilization - ESP), emergency brake booster (BAS) and anti-lock brakes (ABS) |
Brake mechanisms | Disk |
Brake discs | From compositional material aluminum + steel |
Ventilated | on the front wheels |
Solid with perforations | on rear wheels |
Parking brake | foot, with cable drive to the rear wheels |
Front wheel brake lining thickness | |
New lining thickness (including base plate) | 15.5 |
Permissible wear (without base plate) | 2 |
Operation of the wear indicator | 2.5 |
Front brake disc dimensions, mm | |
Diameter | 320 (333 - 2000 models) |
Thickness of the new brake disc | 30 (32 - 2000 models) |
Permissible brake disc wear | 27.4 (29.4 - 2000 models) |
Permissible wear for maintenance | 26 |
Rear brake disc dimensions, mm | |
Diameter | 300 |
Thickness of the new brake disc | 22 |
Permissible brake disc wear | 19.4 |
Permissible wear for maintenance | 20 |
The pressure in the hydraulic drive depending on the pressure on the brake pedal at the pressure in the inlet pipeline | 0.75-0.8, atm. |
Pressure on the brake pedal, N//Pressure in the hydraulic drive, atm. | ATE T52 /4A 225 210 or Lucas LSC115//ATET52 /4A 255 225 |
100 | 35-45//35-47 |
150 | 53-63//57-69 |
200 | 71-81//78-92 |
250 | 87-98//95-05 |
Vacuum booster diameter, mm | (ATE T52/4A 255 225): 228.6/254 |
Gain | 6.85 |
Torque for threaded connections, N·m | |
Fastener tightening torques are also given in the text of the Chapter and in some illustrations *. *The tightening torques in bold type are subject to exact observance; Efforts not in bold are indicative only | |
Vacuum tube to vacuum booster | 30 |
Nut of fastening of the vacuum amplifier to an arm | 20 |
Bleeding bolt in front brake caliper | |
Bolt of fastening of a brake support to a rotary fist | 180 |
Brake hose to brake pipe | 14 |
Brake hose to brake caliper | 18 |
Bolt of fastening of the sensor of frequency of rotation of a forward wheel | 22 |
Bolt of fastening of the gauge of frequency of rotation of a back wheel | 8 |