6.4.1 Option sa
Adjusting the towbar height
Fig. 28 Towbar height adjustment
1
Locking lever
2
Split pin
3
Split pin properly inserted
4
Handle
1. Pull out the split pin and unscrew the locking lever to the stop.
CAUTION
Danger of pinching!
Severe injury to fingers is possible if they become trapped in the adjusting mechanism.
➤ Always wear protective gloves.
➤ Work carefully.
2. Adjust the towbar with the handle until it is horizontal with the coupling on the towing vehicle and
parallel to the ground.
The centre-piece can be moved up to 50° upwards and 10° downwards for height adjustment.
The parallel tie bar ensures that the overrun braking mechanism stays horizontal (Fig. 28).
3. Tighten the locking lever again and secure by striking with a hard rubber hammer.
4. Insert the cotter pin.
5. Check if:
■ The teeth in the adjustment joint are fully engaged.
■ The locking lever is tight.
■ The split pin is correctly inserted to secure the locking lever (see 3 in Fig. 28).
6. Tighten the locking lever again after 50 km.
The serrated joint will not disengage. The serrated washers are corroded.
➤ Free the serrated washers by jerking the towbar horizontally and vertically.
6.4.2 Changing the towing eye
The towbar can be fitted with various towing eyes or couplings.
6
Installation
6.4
Adjusting the chassis
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
61
