BAG0175.3 07.18
5.4.1 Coupling the brake and supply lines
WARNING
Risk of contusions, cuts, dragging, catching or knocks from
incorrectly functioning brake system.
• When coupling the brake and supply line, ensure that:
ο the sealing rings on the hose couplings are clean.
ο the sealing rings of the hose couplings form a proper seal.
• Always replace damaged seals immediately.
• Drain the air tank before the first journey each day.
• Only move off with the machine connected when the pressure
gauge on the tractor shows 5.0 bar.
WARNING
Risk of being crushed, cut, caught or struck by the machine un-
intentionally rolling away when the operating brake is released.
Always couple the hose coupling of the brake line (yellow) first, fol-
lowed by the hose coupling of the supply line (red).
The operating brake of the machine moves out of the brake position
immediately the red hose coupling has been coupled.
1. Open the tractor coupling head caps.
2. Remove brake line coupling head (yellow) from the dummy cou-
pling.
3. Check coupling head seals for damage and cleanness.
4. Clean dirty seals, replace damaged seals.
5. Fasten the brake line coupling head (yellow) as directed in the
tractor coupling with the yellow marking.
6. Remove the supply line coupling head (red) from the dummy
coupling.
7. Check coupling head seals for damage and cleanness.
8. Clean dirty seals, replace damaged seals.
9. Fasten the supply line coupling head (red) as directed in the
tractor coupling with the red marking.
→ On coupling the supply line (red), the supply pressure coming
from the tractor automatically pushes out the button for the re-
lease valve on the trailer brake valve.
10. Release the parking brake and/or remove the wheel chocks.
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