Maintenance work on the carrier
7.18 Towbar coupling
13.02.2018
Maintenance manual 3 302 719 en 7 - 121
GMK6300L-1
Checking for
correct
functioning
The coupling jaw must be able to move easily
in both dire
ctions.
• 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 re-adjusted;
à p. 7 - 121.
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.
• Tighten the screws – torque 58 Nm
(42.7 lbf ft).
• Check the functioning of the coupling jaw;
à p. 7 - 120.
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