DEUTZ-FAHR AGROTRON 106 MK3, Workshop Manual

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2. When the operator activates the system
•
When the operator presses the switch to activate the suspension, the electronic control unit energises the solenoids
(1) and (5).
•
This allows the pressurised oil from the pump (2) to flow to line b and thus start to push the piston (4) downwards.
•
At the same time, the oil compresses the membranes of the accumulators and the oil in lines a and b increases.
•
When the pressure in line a reaches the opening pressure of the relief valve (8), the valve opens and discharges some
of the oil to the drain circuit.
•
When the position sensor detects that the suspension has attained the levelling position, the electronic control unit
de-activates the solenoids (1) and (5) and the part of the system containing the precharged accumulators is isolated
from the rest of the system.
1
5
6
4
a
b
2
H
SV1
LS
SV2
S
LS-V
BL3
DBV1 DBV2
AV
BL2
RV3
RV2
RV1
BL1
A
P
T
LS
P
T
ZSP1
ASP1 ASP2
A
B
AV2
D0004650
HYDRAULIC FRONT AXLE SUSPENSION FRONT SUSPENSION CONTROL VALVE