TM 5-3805-258-24-1
POWER TRAIN
S Y S T E M S O P E R A T I ON
TRANSMISSION HYDRAULIC SYSTEM
(29) and No. 6 carrier ( 18) causes No. 6 sun gear to
through No. 3 planetary gears (26), No. 4 sun gear
turn. No. 6 sun gear turns housing assembly (28) and
(11) and No. 6 sun gear (19). From the output shaft,
output shaft (22).
power goes through the output transfer gears to the
As a result, torque to output shaft (22) is divided
differentials.
SECOND SPEED FORWARD
POWER FLOW IN SECOND SPEEO FORWARD (No. 2 and No. 5 Clutches Engaged)
4. No. 2 l un gear.
9. Ring gear for No. 3
5. No. 2 clutch.
clutoh.
6. Ring geer for No. 2
10. No. 4 carrier.
olutch.
11. No. 4 eun gear.
7. No. 2 l nd No. 3 carrier.
13. Ring gear for No. 4
ciutch.
When the transmission is in SECOND SPEED
FORWARD, No, 5 and No. 2 clutches are engaged.
The No. 2 clutch holds ring gear (6) for the No. 2
clutch stationary. The No. 5 clutch holds rotating
hub (15) 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). As the No. 2 and
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)
14. No. 5 ciutch.
25. No. 2 pianetary geara.
15. Rotating hub.
25. No. 3 pianetary geara.
22. Output ahatt.
27. No. 4 pianetary geara.
23. input ahatt.
2S. Housing aaaembiy.
turns No. 4 carrier (10). As the No. 4 carrier turns,
No. 4 planetary gears (27) turn. The No. 4 planetary
gears turn ring gear (13) for the No. 4 clutch, which
is fastened to housing assembly (28) by bolts. The
No. 4 planetary gears also turn No. 4 sun gear (11).
No. 4 sun gear turns output shaft (22).
Since rotating hub (15) is held stationary by No. 5
clutch (14), power is sent through the No. 5 clutch to
rotating hub (15). Rotating hub (15) turns output
shaft (22).
As a result, torque to output shaft (22) is divided
through No. 3 planetary gears (26), No. 4 sun gear
(11) and rotating hub (15). From the output shaft,
power goes through the output transfer gears to the
differentials.
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