Control valve pressure, function - GF27.60-P-3017AHX

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TRANSMISSION 722.930 up to 31.5.11, 722.931 as of 1.6.11 in MODEL 212.0/2

Function requirements for control valve pressure, general

Status "Circuit 87 ON"
Circuit 61 ON

Control valve pressure, general

The control valve supply pressure is drawn from the working pressure and is limited to a maximum pressure of 8 bar. 2 supply pressure regulating valves are used.

Supply pressure regulating valve 1
Supply pressure regulating valve 2

Supply pressure regulating valve 1

Supply pressure regulating valve 1 supplies the following control solenoid valves:

Working pressure control solenoid valve (Y3/8y1)
Clutch control solenoid valve K2 (Y3/8y3)
Multidisk brake control solenoid valve B2 (Y3/8y6)
Wet clutch control solenoid valve (Y3/8y9)

Supply pressure regulating valve 2

Supply pressure regulating valve 2 supplies the following control solenoid valves:

Clutch control solenoid valve K1 (Y3/8y2)
Clutch control solenoid valve K3 (Y3/8y4)
Multidisk brake control solenoid valve B1 (Y3/8y5)
Multidisk brake control solenoid valve B3 (Y3/8y7)

Using 2 supply pressure regulating valves means that the control solenoid valve groups are isolated from each other and when no gear is shifted a reciprocal influencing of the control solenoid valve groups occurs.

Overview of system components for automatic transmission (AT)

GF27.10-P-9992AHX