Mercedes-Benz 963 2022 Series, Manual

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On the EAPU
Tractor/semitrailer combination (Actros)
W43.00-A007-71
If you fill the compressed-air system via test connection
28 (2) on the EAPU, the pressure circuit of air
suspension is also filled.
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When the compressed air system is full, you can activate
the brakes via the compressed air lines : at test
connections 21 and 22 on the brake value sensor. This
actuates the service brake of the vehicle to be towed.
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Depending on the brake value sensor installed, the
test connections may be located on either the left or
the right side of the brake value sensor.
L cab (Actros)
W43.00-A009-71
L cab (Actros)
W43.00-A016-71
Compressed-air system external filling
52 Actros, Antos and Arocs | Towing and recovery
Compressed-air system