NOTE: If a vehicle has been driven with depressurized air springs, the
air springs must
always be replaced.
Lift vehicle.
Air spring is OK:
when the gaiter cannot be pressed in by hand
when no vis
IMPORTANT: Risk of damage!
Extreme cleanliness must be ensured in the connection area of the vent lines
during removal and installation. Even the smallest of dirt particles can cause
leakage in the ai
WARNING: Danger of injury!
Drain the air spring system before carrying out any work on the air supply
unit, air pipes and air springs! Danger of injury if this instruction is not
complied with!
Risk o
Fig. 2: Identifying Air Brakes Vacuum Supply Models
INTRODUCTION
Vacuum is principally used for the brake booster.
The vacuum in the inlet pipe depends on the varying engine load.
Diesel engines do not normally have any vacuum in the inlet pipe. Vacuum on
diesel engines is provided by a
pump tha
WARNING: Danger to life!
Mount securing fixture for vehicle on lifting platform to prevent the
vehicle from slipping off or tilting down.
Secure engine in installation position to prevent it from falling down.
Necessary preliminary tasks:
Lower front axle support.
Remove both lower control arms