WARNING
Incorrectly coupled machine
If the machine is not correctly coupled and locked it may break away from the towing vehicle and
cause an accident.
➤ Check correct coupling.
➤ Check correct location of the security pin.
3. Place the open coupling over the towing vehicle ball hitch.
The weight on the coupling will cause it to audibly close. The coupling locks automatically. Closing
and locking is automatic.
4. Push the handle down to be certain of locking.
The coupling is fully locked when the handle is fully down and can be pushed no further.
5. Insert the security pin in the ball coupling fixing opening.
12.2.1.3 Tasks to be performed after coupling
Fig. 88 Release the parking brake.
a
Parking brake with gas spring assistance
1
Parking brake lever
2
Dead point zone
b
Parking brake with ratchet and spring load‐
ing
3
Brake lever release button
Height-adjustable chassis:
1. Check that the towbar is adjusted to the correct height. See also chapter 6.4.1.
Check that:
■ The teeth in the tow bar height adjusting joints are fully engaged
■ The locking levers are tightened
■ The security pin is fully inserted.
2. Wind the jockey wheel to its uppermost position.
3. Check that the wheels are securely fitted and the tyres are in good condition.
4. Check the tyre pressures.
5. Connect the cable for the lighting and indicator systems and carry out a function check.
6. Release the parking brake:
(see Fig. 88/a).
■ Pull the brake lever a little further on and press the release button.
■ Hold the release button in and push the lever down past the dead point zone.
7. Remove the chocks.
12 Decommissioning, Storage and Transport
12.2 Transport
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
163
Option sa