HYDRAULIC CONTROL UNIT
Working Pressure Regulating Valve (Line Pressure or Oper-
ating Pressure)
The wor king pressure (p-A) is regulated a t the
working pressure r egulat ing valve (4) (F ig. 112) in
rela tion t o load (modulating pressur e, p-Mod) and
gear (K1 or K2 pressure) (1). The spring in th e work-
ing p re s s ure re gulating valve s ets a minimum p re s -
su re level (basic pressur e).
Fig. 112 Working Pressure Regulating Valve
1 - PRESSURE FROM K1/K2
2 - END FACE
3 - ANNULAR SURFACE
4 - WORKING PRESSURE REGULATING VALVE
VA AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 113
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