Volvo ECS - Page 65

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3. Air drain via silencer
11. Air supply from drive axle valve block, port 21
12. Air supply from drive axle valve block, port 22
13. Air supply to bogie lift
14. Air supply to drive axle load sensor
21. Air to and from trailing (or pusher) LH air bellows
21. Air to and from trailing (or pusher) RH air bellows
23. Air to and from trailing (or pusher) lifting bellows
LV. Limiting valve
RV. Retention valve
SID 8. Blocking valve
SID 9. Draining valve
SID 10. Lifting valve
ECS Gen. 1
Solenoid valve
block - bogie