Solenoid Valve Blocks - Volvo ECS Training Tips And Tactics

57
Solenoid valve
blocks - 6x2 or
8x2 - ignition off
Note: Illustration
spread across 2
pages
1
4 4
1
3
Y29
21
Note that, with ignition off, air cannot pass through any
valve.
So, on Gen. 2 system, when the ignition is switched off, the
lifting axle does not drop down.
PORT NUMBERS
1. Air supply from wet tank
3. Exhaust
21. To LH/RH trailing/pusher bellows
22. To lift axle bellows
2 4 3
23. Plugged
23
22
58
57
141