Maintenance work on the carrier
7.17 Towbar coupling
03.11.2017
Maintenance manual 3 302 574 en 7 - 125
GMK3060
Checking the
function
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 th
e coupling can no longer move
to the side.
H
If the lever does not automatically engage with the coupling jaw, the middle
position must be re-adjusted;
à p. 7 - 125.
Resetting the
middle p
osition
• 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 - 124.
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