Maintenance work on the carrier
7.18 Towbar coupling
16.11.2018
Maintenance manual 3 302 756 en 7 - 129
GMK6400
Checking the
functionality
The coupling jaw must be able to move easily
in both directions.
• Hold the coupling jaw (1) pressed slightly to
the left or right.
• Open the coupling (position A) and let the
coupling jaw go.
The lever must automatically lock the coupling
jaw in the middle position. The coupling jaw is
locked when the coupling can no longer move
to the side.
H
If the lever does not automatically engage with the coupling jaw, the central
position must be reset;
à p. 7 - 129.
Resetting the
middle position
• Open the coupling (lever (1) pointing
upwards) and loosen the screws (2).
• Push the coupling jaw to the side until the
lever engages.
• Screw the bolts tight – Torque 58 Nm
(42.7
lbf ft).
• Heck the function of the coupling jaw;
à p. 7 - 128.