2

When the gear selector is placed in the 2−position, the second coast brake (B1) is applied by way of the manual valve. When the second coast brake is applied, it holds the sun gear from rotating in either direction. Power flow is the same with the selector in 2," as when the selector is in D" because the second coast brake is parallel to the second brake and No. 1 one−way clutch. However, when the transmission is being driven by the wheels on deceleration, the force from the output shaft is transmitted to the front carrier, causing the front...

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L

When the gear selector is placed in the L−position, the first and reverse brake (B3) is applied through the position of the manual valve. The first and reverse brake performs the same function as the No. 2 one−way clutch (F2) does in the forward direction. When the first and reverse brake (B3) is applied it holds the rear planetary gear carrier from turning in either direction, whereas the No. 2 one−way clutch holds the carrier in the counterclockwise direction only. The advantage that the first and reverse brake has, is that engine braking can...

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D range 3 gear

The forward clutch (C1) is applied in all forward gears and connects the input shaft to the front planetary ring gear as it does in all forward gears. The direct clutch (C2) connects the input shaft to the common sun gear. By applying both the direct clutch and the forward clutch, we have locked the ring gear and the sun gear to each other through the direct clutch drum and the input sun gear drum. Whenever two members of the planetary gear set are locked together direct drive is the result. Notice that the second brake (B2) is also applied in...

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D range second gear

The forward clutch (C1) connects the input shaft to the front planetary ring gear. The sun gear is driven in a counterclockwise direction in first gear and by simply applying the second brake (B2) the sun gear is stopped by the No. 1 one−way clutch (F1) and held to the case. When the sun gear is held, the front pinion gears driven by the ring gear walks around the sun gear and the carrier turns the output shaft. The advantage of the No. 2 one−way clutch (F2) is in the automatic upshift and downshift. Only one multiplate clutch is applied or released...

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D.2

First gear is unique because it uses both the front and rear planetary gear sets. The forward clutch (C1) is applied in all forward gears and drives the ring gear of the front planetary gear set. When the ring gear rotates clockwise, it causes the pinions to rotate clockwise since the sun gear is not held to the case. The sun gear rotates in a counterclockwise direction. The front planetary carrier, which is connected to the output shaft, rotates, but more slowly than the ring gear; so for practical purposes, it is the held unit. In the rear...

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