Control Valve Pressure, Function - GF27.60-P-3017ANN

Transmission 722.9 05 in model 166 

as of model year 2016 

Transmission 722.9 05 in model 292 

Function requirements for control valve pressure, general 

• Circuit 15 ON
• Internal combustion engine running 

Control valve pressure, general 

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

• Supply pressure regulating valve 1 
• Supply pressure 2 regulating valve 

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)
• Torque converter lockup clutch control solenoid valve (Y3/8y8)

Supply pressure 2 regulating valve 

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)

By using two supply pressure regulating valves, the control solenoid valve groups are isolated from each other and the control solenoid valve groups do not influence each other during any shift operation.