Automatic Transmission
System Description (cont'd)
Power Flow (cont'd)
D4 or D3 Position in 3rd gear
• Hydraulic pressure is applied to the 3rd clutch, then the 3rd clutch engages the mainshaft 3rd gear with the
mainshaft.
• The mainshaft 3rd gear drives the countershaft 3rd gear and the countershaft.
• Power is transmitted to the final drive gear, which in turn drives the final driven gear.
MAINSHAFT
COUNTERSHAFT
SECONDARY
SHAFT
14-26
3RD CLUTCH
COUNTERSHAFT
3RD GEAR
TORQUE CONVERTER
MAINSHAFT
3RD GEAR
FINAL DRIVE GEAR
FINAL DRIVEN GEAR