P O W E R T R A I NT R A N S M I S S I ONTM 5-3805-258-24-1S Y S T E M S O P E R A T I O NTHIRD SPEED REVERSEPOWER FLOW IN THIRD SPEED REVERSE (No.1 and No. 4 ClutchesEngaged)1.Ring gear for No. 19. Ring gear for No. 3clutch.clutch.2. Coupfing gear.10. No. 4 carrier.3.No. 1 clutch.11. No. 4 eun gear.7. No. 2 and No. 3 carrier.12. No. 4 clutch.When the transmission is in THIRD SPEED RE-VERSE, No. 1 and No. 4 clutches are engaged. TheNo. 1 clutch holds ring gear (1) for the No. 1 clutchstationary. The No. 4 clutch holds ring gear (13) forthe No. 4 clutch stationary. Input shaft (23) turnsNo. 1 sun gear (21). No. 1 sun gear turns No. 1planetary gears (24). No. 1 carrier (20) is in directmechanical connection with ring gear (1).Since ring gear (1) is held stationary by the No. 1clutch, so is No. 1 carrier (20). The movement of No.1 planetary gears (24) causes coupling gear (2) toturn in the opposite direction of input shaft (23).Coupling gear (2) is in direct mechanical connectionwith No. 2 and No. 3 carrier (7). As the No. 2 and13. Ring gear for No. 423. Input shaft.clutch.24. No. 1 planetary geara.20. No. 1 carrier.26. No. 3 planetary gears.21. No. 1 aun gear.27. No. 4 planatary geara.22. Output shaft.No. 3 carrier turns, No. 3 planetary gears (26) turn.The No. 3 planetary gears turn ring gear (9) for theNo. 3 clutch and output shaft (22). Ring gear (9)turns No. 4 carrier (10).Since ring gear (13) is held stationary by the No. 4clutch, planetary gears (27 ) move around the insideof the ring gear. The movement of planetary gears(27) and No. 4 carrier (10), causes No. 4 sun gear(11) to turn. No. 4 sun gear turns output shaft (22).As a result, torque to output shaft (22) is dividedthrough No. 3 planetary gears (26) and No. 4 sungear (11). From the output shaft, power goesthrough the output transfer gears to the differentials.3-37
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