Fig. 31 Changing the towing eye (fixed height towbar, USA chassis version)
1
Self-locking hexagon nut
2
Hex-head bolt
3
Damper fixing eye
4
Damper
5
Towbar tube
6
Protective sleeve
7
Ball coupling
8
Towing eye
1. Push back the protective sleeve
6
.
2. Unscrew the nuts
1
and withdraw the fixing bolts
2
.
3. Remove the ball coupling
7
or towing eye
8
from the towbar tube
5
.
4. Slide the new coupling
7
or towing eye
8
into or onto the towbar tube
5
.
5. Position the various parts so that the bolts can be freely inserted.
6. Push the bolts
2
through the front of the two holes in the eye
8
or coupling
7
and fix with the
self-locking nuts
1
.
In order to insert the rear bolt, the delayed release of the compressed damper is used. During
the delayed return stroke, a suitable metal rod is pushed through the holes as they line up to
hold them in place.
7. Push heavily against the towing eye
8
or coupling
7
to depress the overrun brake.
8. Pull the coupling and the towbar tube forward quickly and insert a suitable thin metal rod through
the rear fixing hole
3
and the damper's fixing eye
4
.
9. Insert the bolt
2
through the hole in the coupling/eye and the blocked fixing eye
3
of the damper
4
. At the same time, pull out the metal rod again. Secure the bolt
2
with the self-locking nut
1
.
10. Tighten the nuts.
11. Draw the protective sleeve
6
over the fixings.
Checking the overrun braking mechanism
➤ Push the towbar tube in and out by hand.
If resistance is felt, the damper is properly connected.
6
Installation
6.4
Adjusting the chassis
64
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
No.: 9_9425 01 E
Option sh