Emergency Shift (Live Pto); Brake System; General; Emergency Shift Of Power Take-Off (Live Pto) - Mercedes-Benz Atego Manual

Brake system

General

In the basic version the service brake is a pneumatically controlled brake with antilock brake system (ABS). As
well as the basic version, the service brake is also available as the Telligent
system features an electronic control system to control and monitor the brake system and incorporating the
following systems:
• Antilock brake system (ABS)
• Acceleration skid control (ASR)
• Hill holder
• Frequent-stop brake
To relieve the strain on the wheel brakes the Telligent
permanent brake depending on the load state of the vehicle and the weather conditions.
If there are any faults in the brake system, an appropriate message is shown in the display.
If the electronic system fails, the brake system is controlled pneumatically in two circuits. Braking behavior is
significantly different from that of the intact system. The ABS function is no longer available, the pedal travel is
longer and the pedal forces are higher.
While driving, the air compressor replenishment function prevents the trailer brake from responding.
Releasing the spring-loaded parking brake, see page 82.
Pressure table
Pressure regulator cut-in/cutoff pressure
Reservoir pressure, rear axle service brake
Reservoir pressure, front axle service brake
Reservoir pressure, parking brake and trailer brake
Reservoir pressure, ancillary consumers
Release pressure, spring-loaded parking brake
Reservoir pressure, Telligent
Air suspension system overflow valve
78
Guidelines for Breakdown Services (Subject to technical modifications)
i
®
®
level control
®
brake system. The Telligent
brake system can activate the vehicle's built-in
Pressure Circuit
about 10.2/12.3 bar
about 9.7–10.7 bar 1
about 9.7–10.7 bar 2
about 8.0–8.7 bar 3
about 8.0–8.7 bar 4
about 6.5 bar
max. 12.3 bar
about 9.6–10 bar
®
brake
Four-circuit
protection
valve
21
22
23/25
24/26