
RUNNING GEAR OPERATION
Operating instructions • Load Carrier • 505410638-02 • 07/2019
33
► Connect the power supply (vehicle
lighting) and the brake power supply
(EBS).
ü
The supply and control connections
are now connected.
Disconnecting the standard coupling
þ
The parking brake on the tractor unit is
applied.
þ
The parking brake on the trailer is ap-
plied
(see "5.9.2 Parking brake", pg. 37)
.
► Always disconnect the supply com-
pressed air coupling (red) first.
► Disconnect the brake compressed air
coupling (yellow).
► Disconnect the power supply (vehicle
lighting) and the brake power supply
(EBS).
► Close the disconnected coupling
heads and plugs with the protective
caps.
ü
The supply and control connections
are disconnected.
Connecting the Duo-Matic coupling
1
2
Fig. 5-15:
Duo-Matic coupling
1
Compressed air coupling (tractor unit
part)
2
Compressed air coupling (trailer part)
þ
The parking brake on the tractor unit is
applied.
þ
The parking brake on the trailer is ap-
plied
(see "5.9.2 Parking brake", pg. 37)
.
► Check the cleanliness and integrity of
the sealing surfaces on the coupling
heads. Clean if necessary.
► Pull down the compressed air coupling
(trailer part) lever and insert the coup-
ling head (tractor unit part).
► Connect the power supply (vehicle
lighting) and the brake power supply
(EBS).
ü
The supply and control connections
are now connected.
Disconnecting the Duo-Matic coupling
þ
The parking brake on the tractor unit is
applied.
þ
The parking brake on the trailer is ap-
plied
(see "5.9.2 Parking brake", pg. 37)
► Pull down the coupling head (trailer
part) lever and remove the coupling
head (tractor unit part).
► Disconnect the power supply (vehicle
lighting) and the brake power supply
(EBS).
ü
The supply and control connections
are disconnected.
Connecting C-coupling heads
1
2
Fig. 5-16:
C-coupling heads (trailer)
1
Supply compressed air coupling
2
Brake compressed air coupling
þ
The parking brake on the tractor unit is
applied.
þ
The parking brake on the trailer is ap-
plied