Pressure Control Valve - Volvo ECS Training Tips And Tactics

ECS Gen. 1
1. Supply from 2-way valve
Pressure control
2. Supply to bogie valve block
valve
41. Signal from drive axle air bellows RH
42. Signal from drive axle air bellows LH
56. Drive axle air bellows
57. Non-drive axle air bellows
6035C. Drive axle valve block
6045. Bogie valve block
A pressure control valve is fitted only to early trucks with a
pusher axle bogie - up to and including ʻElectronics ʻ98.
The valve controls the pressure in the non-drive axle air
bellows, in proportion to the pressure in the drive axle air
bellows.
In this way, the weight distribution between the axles
ensures optimum traction.
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