Opel Automobile Owner's Manual page 159

Insert the tensioned coupling ball bar
in the opening and push firmly
upwards until it audibly engages.
The rotary handle snaps back into its
original position resting against the
coupling ball bar without a gap.
9 Warning
Do not touch rotary handle during
insertion.
Lock the coupling ball bar by turning
the key to position e (2). Remove the
key and close the protective flap.
Eye for break-away stopping cable
Attach break-away stopping cable to
eye.
Check that the coupling ball bar is
correctly installed
■ Green marking on rotary knob must
point towards white marking on
coupling ball bar.
■ There must be no gap between the
rotary handle and the coupling ball
bar.
■ The coupling ball bar must be firmly
engaged in the opening.
■ The coupling ball bar must be
locked and the key removed.
9 Warning
Towing a trailer is permitted only
when a coupling ball bar is fitted
correctly. If the coupling ball bar
does not engage correctly, seek
the assistance of a workshop.
Driving and operating
Dismounting the coupling ball
bar
Open the protective flap and turn the
key to position c (1) to unlock the
coupling ball bar.
Pull out rotary handle and turn
clockwise as far as it will go. Pull out
coupling ball bar downwards.
Insert sealing plug in opening. Fold
away socket.
159