P O W E R T R A I N
T R A N S M I S S I ON
TM 5-3805-258-24-1
S Y S T E M S O P E R A T I O N
THIRD SPEED REVERSE
POWER FLOW IN THIRD SPEED REVERSE (No. 1 and No. 4 Clutches Engaged)
1. Ring gear for No. 1
9. Ring gear for No. 3
clutch.
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. The
No. 1 clutch holds ring gear (1) for the No. 1 clutch
stationary. The No. 4 clutch holds ring gear (13) for
the No. 4 clutch stationary. Input shaft (23) turns
No. 1 sun gear (21). No. 1 sun gear turns No. 1
planetary gears (24). No. 1 carrier (20) is in direct
mechanical connection with ring gear (1).
Since ring gear (1) is held stationary by the No. 1
clutch, so is No. 1 carrier (20). The movement of No.
1 planetary gears (24) causes coupling gear (2) to
turn in the opposite direction of input shaft (23).
Coupling gear (2) is in direct mechanical connection
with No. 2 and No. 3 carrier (7). As the No. 2 and
13. Ring gear for No. 4
23. 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 the
No. 3 clutch and output shaft (22). Ring gear (9)
turns No. 4 carrier (10).
Since ring gear (13) is held stationary by the No. 4
clutch, planetary gears (27 ) move around the inside
of 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 divided
through No. 3 planetary gears (26) and No. 4 sun
gear (11). From the output shaft, power goes
through the output transfer gears to the differentials.
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