Control Valve Pressure, Function - GF27.60-D-3017HAG

TRANSMISSION 722.9 in MODEL 906

Function requirements for control valve pressure, general 

• "Circuit 87 ON"
• "Circuit 61 ON" (engine running)

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 K2 control solenoid valve (Y3/8y3)
• Brake B2 control solenoid valve (Y3/8y6)
• Torque converter lockup clutch control solenoid valve (Y3/8y8)

Supply pressure regulating valve 2 

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

• Clutch K1 control solenoid valve (Y3/8y2) control solenoid valve groups do not influence each other
• Clutch K3 control solenoid valve (Y3/8y4) during any shift operation.
• Brake B1 control solenoid valve (Y3/8y5)
• Brake B3 control solenoid valve (Y3/8y7)

By using 2 supply pressure regulating valves, the control solenoid valves groups are isolated from each other and the control solenoid valve groups do not influence each other during any shift operation.