Shift Pressure Shift Valve
Each shift group possesses one shift pressure shift
valve (Fig. 94). The 1-2 / 4-5 and 2-3 shift pressure
shift valves are installed in the shift valve housing;
the 3-4 shift pressure shift valve is installed in the
valve housing. It assigns the shift pressure (p-S) to
the activating actuator and the overlap pressure
(p-Ü) regulated by the overlap regulating valve to the
deactivating actuator.
Lubrication Pressure Regulating Valve
The lubrication pressure regulating valve (Fig. 95)
is located in the valve housing of the electrohydraulic
control module. The valve controls the fluid to lubri-
cate and cool the mechanical part of the transmis-
sion, and limits the pressure in the torque converter.
Fig. 94 Shift Pressure Shift Valve
1 - 1-2/4-5 COMMAND VALVE
2 - DRIVING CLUTCH K1
3 - HOLDING CLUTCH B1
4 - 1-2/4-5 SHIFT PRESSURE SHIFT VALVE
Fig. 95 Lubrication Pressure Regulating Valve
1 - LUBRICATION PRESSURE REGULATING VALVE
21 - 86 AUTOMATIC TRANSMISSION - NAG1 VA
ELECTROHYDRAULIC UNIT (Continued)
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