TM 10-3930-671-24 TA18 Transmission Pressure Specifications • Regulator Valve Pressure: ............................................................ 150-195 psi - 1800 rpm (1034-1172 kPa) Check Point: Oil supply line at converter • Converter In/Lube Pressure:......................................................... 30 psi minimum - 1800 rpm (206 kPa) Check Point: Return from cooler • Converter Safety Valve Pressure:................................................. 120-130 psi - 1800 rpm (827-896 kPa) (Reference only) (Trans in NEUTRAL) .................................................................. with line to cooler blocked Check Point: None • Clutch Pressure:............................................................................ 135-155 psi - 600 rpm idle (930-1068 kPa) (Forward, Reverse applied)........................................................ Normally 15 psi less than regulator pressure (135 psi min) Check Point: At control valve (1/8 NPTF) • Clutch Pressure:............................................................................ Same as regulator valve pressure (in NEUTRAL) Notes: 1.    All rpm's noted are engine speed. 2.    All clutch pressures are at engine idle speed with clutch engaged, unless otherwise noted. 3.    IMPORTANT - Oil at operating temperature 180-200°F (82-93°C) 4.    Refer to following illustrations for check point locations. TA18 Transmission Pressure Check Points F-349