Maintenance work on the carrier
7.18 Towbar coupling
13.02.2018
Maintenance manual 3 302 719 en 7 - 117
GMK6300L-1
7.18.2 Checking the bearing
Prerequisites – The coupling must be closed; à p. 7 - 116.
Checking the
bearing
• Check the bearing of the towbar coupling
by vigorously shaking it up and down and
in the longitudinal direction (arrows). Hold
the towbar coupling at the top and bottom
of the coupling head and not by the coupling
jaw.
The vertical play at the coupling head must
be no m
ore than 3 mm (0.1 in).
G
Risk of injury!
Ensure that the towbar coupling is closed for the following work (lever
points downwards). The lever may otherwise come down with great force
and cause serious injury to your hand.
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