Articulated lorry air lines etc?

Question

Can anyone tell me what the 4/5 hoses are on an articulated lorry.i know there are two lines for electrics, one is the air line for brakes,& one is for the abs brakes..what is the other one for.

Answer 1

The setup will vary, depending on how old or new the tractor unit is, but you may have any of the following combinations.

Yellow air line - service brakes.

Red air line - emergency brake (safety backup)

Blue air line - auxiliary air systems.

Black electrical with black plug - main electrical systems

Grey electrical with black plug - ABS / EBS systems

Black electrical with white plug - auxiliary electrical systems

Black high pressure line with push fit couplings - hydraulics (for tippers, etc.)

Answer 2

juice

Answer 3

Actually, there are at least three hoses for brakes... primary, and two backups.  

Answer 4

Well described  TWISTED     TEN POINTS TO YOU !!