Solenoid Valve Blocks - Design And Function - Volvo ECS Training Tips And Tactics

ECS Gen. 1
ECS Gen. 1
solenoid valve
blocks - design
and function
Three types of solenoid valve block are used in
ECS Gen.1:
A. Front axle valve block
B. Drive axle valve block:
- variant 1 for 4x2 tractor
- variant 2 for other than 4x2 tractor
C. Bogie axle valve block:
- variant 1 for trailing axle
- variant 2 for pusher axle
All valve blocks contain solenoid operated air valves, which
control air flow to and from the air bellows.
The solenoids are energised or de-energised by signals
from the ECS ECU.
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