IMPACT 4.07.
11 6/5/2019
Chassis ID Path
A 716431 56/Schematic diagrams//Brake circuit diagram
Model Identity
FH 144017463
Publish date ID/Operation
12/19/2018
Brake circuit diagram
RSS-AIR, TRBR-HCF, AIRDRY1, TRACTOR
For information on colours, numbering and abbreviations respectively, see Coloured code for the pneumatic diagram,
Full component list and Abbreviations.
Component legend
1. Contact switch, brake light
2. Pressure sensor, front brake
3. Pressure sensor, rear brake
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.11 6/5/2019
4. Contact switch, rear brake
5. Contact switch, rear brake light
6. Boost air intake
7. Air compressor
8. Air drier pipe
9. Test nipple
10. Safety valve
11. Air drier
12. Air regenerator
13. Relay valve, trailer
14. Service brake valve
16. Parking brake valve
17. Blocking valve
18. Contact switch, trailer brake
19. Quick release valve
20. Front brake cylinder (single membrane)
21. Trailer connections
22. Contact switch, parking brake
23. Air distributor (collector)
24. Contact switch, parking brake
25. Contact switch, parking brake
26. Drain valve
27. Air reservoir, moist
28. Pressure retaining valve for trailer
29. Four-way protection valve
30. Pressure sensor, air suspension
31. Air distributor (collector)
32. Contact switch, air suspension
34. Pressure limiting valve
35. Air reservoir, front
36. Air filter
37. Relay valve, parking brake
38. Air distributor nipple
39. 2–way valve
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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IMPACT 4.07.11 6/5/2019
40. Retaining valve
41. Air reservoir, parking
42. Level control valve
43. Air distributor
44. Air reservoir, rear brake
45. Load sensing valve
46. Air distributor nipple
47. Air bellows, rear suspension
48. Rear brake cylinder (double membrane)
A Air for seat suspension
B Air for gear selector lever
Copyright to this documentation belongs to the Volvo Group. No reproduction, copying, change, amendment or other similar disposal is entitled without prior written consent by
the Volvo Group
The information contained herein is current at the time of its original distribution, but is subject to change. The reader is advised that printed copies are uncontrolled.
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