TM 5-3805-260-24 Most     all     the     components     inside     the     planetary transmission    turn    when    the     controls     are     in     each FORWARD or REVERSE speed. Only these components that have been made dark in the illustrations   that   follow   are   used   in   the   flow   of   power through the transmission. FIRST SPEED FORWARD T99750 POWER FLOW THROUGH TRANSMISSION IN FIRST SPEED FORWARD (No.  3 and No.  6 Clutches Engaged.) The  No.    3  clutch  ring  gear  is  held  stationary.    This causes the No.  3, No.  4 and No.  5 carriers and No.  6 clutch to turn.  Since the No.  6 clutch is engaged, torque is sent to the No.  6 clutch gear and output shaft. SECOND SPEED FORWARD The  No.    3  clutch  ring  gear  is  held  stationary.    This causes  the  No.    3,  No.    4  and  No.    5  carriers  to  rotate. The  No.    5  clutch  ring  gear  is  held  stationary  by  the engaged  No.    5  clutch.    The  No.    5  planet  gears  turn around  the  inside  of  the  No.    5  clutch  ring  gear  driving the No.  5 sun gear which in turn drives the No.  6 clutch gear and output shaft. POWER FLOW THROUGH TRANSMISSION IN SECOND SPEED FORWARD (No.  3 and No.  5 Clutches Engaged.) THIRD SPEED FORWARD POWER FLOW THROUGH TRANSMISSION IN THIRD SPEED FORWARD (No.  3 and No.  4 Clutches Engaged.) The  No.    3  clutch  ring  gear  is  held  stationary  by  the No.      3   clutch.      The   No.      4   clutch   ring   gear   is   held stationary  by  the  No.    4  clutch.    The  No.    3  sun  gear drives  the  No.    3  planet  gears  which  turn  around  the inside of the No.  3 clutch ring gear to rotate the No.  3 carrier.    The  No.    4  planet  gears  are  driven  around  the inside of the stationary No.  4 clutch ring gear and drive the No.  4 sun gear, No.  6 clutch gear and output shaft. FOURTH SPEED FORWARD The No.  1 clutch holds the No.  2 carrier to the input shaft  which  causes  the  No.    2  and  No.    3  ring  gears, carriers,  and  carrier  ring  gears  to  turn  at  transmission input  speed.    The  rotation  of  the  No.    3  and  No.    4 carriers send torque to the No.  4 ring gear and sun gear. When the No.  5 ring gear is held stationary by the No.  5 clutch, torque is sent by the No.  4 and No.  5 sun gears to the output shaft. 2-86 CLUTCH NO. OPERATION No 1 Forward Direction (fourth speed) No 2 Reverse Direction No. 3 Forward Direction No. 4 Third Speed No. 5 Second and Fourth Speeds No 6 First Speed