Power Flow (cont'd)

In 5th Gear

  • Hydraulic pressure is applied to the 5th clutch, then the 5th clutch engages the mainshaft 5th gear with the mainshaft.
  • The mainshaft 5th gear drives the countershaft 5th gear and the countershaft.
  • Power is transmitted to the final drive gear, which in turn drives the final driven gear.

R Position

  • Hydraulic pressure is applied to the servo valve to engage the reverse selector with the countershaft reverse gear and the reverse selector hub while the shift lever is in R.
  • Hydraulic pressure is also applied to the 4th clutch, then the 4th clutch engages the mainshaft reverse gear with the mainshaft.
  • The mainshaft reverse gear drives the countershaft reverse gear via the reverse idler gear.
  • The rotation direction of the countershaft reverse gear is changed by the reverse idler gear.
  • The countershaft reverse gear drives the countershaft via the reverse selector, which drives the reverse selector hub.
  • Power is transmitted to the final drive gear, which in turn drives the final driven gear.