TM 5-3805-258-24-1
P O W E R T R A IN
T R A N S M I S S I O N
FOURTH SPEED FORWARD
S Y S T E M S O P E R A T I O N
POWER FLOW IN FOURTH SPEED FORWARD (No. 2 and No. 3 Clutchee Engaged)
4. No. 2 l un gear.
7. No. 2 and No. 3 carrier.
10. No. 4 carrier.
25. No. 2 planetary geara.
5. No. 2 clutch.
8. No. 3 clutch.
22. Output ehatt.
2S. No. 3 planetary geara.
0. Ring gear for No. 2
9. Ring gear for No. 3
23. Input shaft.
olutch.
clutch.
When the transmission is in FOURTH SPEED
FORWARD, No. 2 and No. 3 clutches are engaged.
The No. 2 clutch holds ring gear (6) for the No. 2
clutch stationary. The No. 3 clutch holds ring gear
(9) for the No. 3 clutch stationary. Input shaft (23)
turns No. 2 sun gear (4). No. 2 sun gear turns No. 2
planetary gears (25).
Since ring gear (6) is held stationary by the No. 2
clutch, planetary gears (25 ) move around the inside
of the ring gear. The movement of planetary gears
(25) causes No. 2 and No. 3 carrier (7) to turn in the
same direction as input shaft (23).
Since ring gear (9) is held stationary by the No. 3
clutch, the movement of No. 2 and No. 3 carrier (7)
causes No. 3 planetary gears (26) to move around the
inside of the ring gear. The No. 3 planetary gears
turn output shaft (22). From the output shaft, power
goes through the output transfer gears to the
differentials.
3-34
