GASKET-PAN-LH. 4B4644 - Caterpillar

Fourth Speed Forward
Refer to Illustration 2 for a typical example of power flow in the forward direction.When the transmission is in fourth speed forward, the Number 2 clutch and the Number 3 clutch are engaged. The Number 2 clutch holds ring gear (6) for the Number 2 clutch stationary. The Number 3 clutch holds ring gear (9) for the Number 3 clutch stationary. Input shaft (24) turns Number 2 sun gear (4). The Number 2 sun gear turns Number 2 planetary gears (26) .Because ring gear (6) is held stationary by the Number 2 clutch, planetary gears (26) move around the inside of the ring gear. The movement of planetary gears (26) causes Number 2 carrier and Number 3 carrier (7) to turn in the same direction as input shaft (24) .Ring gear (9) is held stationary by the Number 3 clutch. Because the ring gear is stationary, the movement of Number 2 carrier and Number 3 carrier (7) causes Number 3 planetary gears (28) to move around the inside of the ring gear. The Number 3