3-8 Clutch Applies

VFS S3-8 Solenoid C 

The VFS S3-8 solenoid C is energized allowing RANGE FEED fluid to enter the S38 VFS SIGNAL fluid circuit. S38 VFS SIGNAL fluid is directed to the S38 VFS accumulator, mode 1 ETRS valve, and 3-8 clutch regulator valve.

3-8 Clutch Regulator Valve 

S38 VFS SIGNAL fluid is directed thru orifice #5 and into the 3-8 clutch regulator valve where it applies pressure against the 3-8 clutch regulator valve spring force. This allows DRIVE 2 fluid to enter the 38 CLUTCH fluid circuit. 38 CLUTCH fluid seats ball check valve #3 then is forced thru orifice #31 and #30 to the 3-8 clutch assembly.

3-8 Clutch Assembly 

38 CLUTCH fluid is directed to the 3-8 clutch assembly. 3-8 CLUTCH fluid moves the piston against spring force to apply holding of the 3-8 clutch plates.

Mode 1 ETRS Valve 

S38 VFS SIGNAL fluid is routed to the mode 1 ETRS valve applying pressure against mode 1 ETRS valve spring force. This allows RANGE FEED fluid to be directed into the FEED 1 fluid circuit. FEED 1 fluid is then directed to the #17 ball check valve and the mode 2 ETRS valve.

#17 Ball Check Valve 

FEED 1 fluid seats the #17 ball check valve against the REVERSE fluid circuit. The FEED 1 fluid seats the #16 ball check valve and is routed thru orifice #60 into the PARK OFF fluid circuit. PARK OFF fluid is directed to the park release servo piston.

Park Release Servo Piston 

PARK OFF fluid is directed to the park release servo piston applying pressure against park release servo piston spring force. The park inhibit solenoid is then energized on.