PLANETARY TRANSMISSION
SYSTEMS OPERATION
TM 5-3805-263-14&P-2
Power goes through the No. 1 clutch (FOR-
WARD) or the No. 2 clutch (REVERSE) to the
No. 3 and No. 4 carrier (1). The planet gears (4)
are turned by the No. 3 and No. 4 carrier (1). The
planet gears (4) are engaged with the ring gear (6)
for the No. 4 clutch and make it turn, The No. 4
clutch (5) is not engaged but the ring gear (6) for
the No. 4 clutch is connected to the No. 5 carrier
(7) with a spline. Because the No. 5 clutch (9) is
engaged and holding the ring gear (8) for the No. 5
clutch, the planet gears (25) (turned by the No. 5
carrier) make the sun gear (24) turn shaft (20).
As the sun gear (24) turns shaft (20), it gives
resistance to the planet gears (25) and to the No. 5
carrier (7). The ring gear (6) for the No. 4 clutch is
connected to and has resistance to turning by the
No. 5 carrier (7). Because the ring gear (6) for the
No. 4 clutch has a resistance to turning, the planet
gears (4) (turned by the No. 3 and No. 4 carrier)
make the sun gear (23) turn the shaft (20). Power
is divided between the sun gear (23) and the ring
gear (6) for the No. 4 clutch.
Shaft (20) turns hub (16) for the No. 7 clutch.
The No. 7 clutch (18) is engaged and makes the
ring gear (15) for the parking brake turn with hub
(16). The ring gear (15) for the parking brake is
connected to the output flange (17) and power is
sent to the differential.
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