Mercedes-Benz 2005 Sprinter Service Manual page 967

VA
ELECTROHYDRAULIC UNIT (Continued)
Lubrication Pressure Regulating Valve
At the working pressure regulating valve surplus
oil is diverted to the lubrication pressure regulating
valve (1) (Fig. 106), from where the lubrication pres-
sure (p-Sm) is used in regulated amounts to supply
the transmission lubrication system including the
torque converter.
Fig. 106 Lubrication Pressure Regulating Valve
1 - LUBRICATION PRESSURE REGULATING VALVE
Shift Pressure Regulating Valve
The shift pressure is determined by the shift pres-
sure regulating solenoid valve and the shift pressure
regulating valve (3) (Fig. 107). In addition, pressure
from the clutch K2 (1) is also present at the annular
surface (2) of the shift pressure regulating valve (3).
This reduces the shift pressure in 2nd gear.
Fig. 107 Shift Pressure Regulating Valve
1 - PRESSURE FROM CLUTCH K2
2 - ANNULAR SURFACE
3 - SHIFT PRESSURE REGULATING VALVE
AUTOMATIC TRANSMISSION - NAG1 21 - 91
Regulating Valve Pressure Regulating Valve
The regulating valve pressure (p-RV) is set at the
regulating valve pressure regulating valve (1) (Fig.
108) in relation to the working pressure (p-A) as far
as the maximum pressure.
Fig. 108 Regulating Valve Pressure Regulating
1 - REGULATING VALVE PRESSURE REGULATING VALVE
Shift Valve Pressure Regulating Valve
The non-constant regulating valve pressure (p-RV)
is regulated to a constant shift valve pressure (p-SV)
at the shift valve pressure regulating valve (1) (Fig.
109) and is used to supply the 1-2 and 4-5 / 3-4 / 2-3
solenoid valves and the torque converter lockup
clutch PWM solenoid valve.
Fig. 109 Shift Valve Pressure Regulating Valve
1 - SHIFT VALVE PRESSURE REGULATING VALVE
Valve