Subaru Impreza 2003 Service Manual page 1593

5) Remove the oil filter and plate.
(A)
(A) Oil filter
(B) Plate
6) Remove six steel balls from middle valve body.
(A) Steel ball
(B) Middle valve body
7) Remove the middle valve body.
8) Remove upper separator plate from middle
valve body.
( A )
(A) Upper separator plate
(B) Side plate
9) Remove valve springs and four steel balls from
upper valve body.
10) Place a shop cloth to the piston removal hole.
CONTROL VALVE BODY
(B)
AT-00068
( B )
( A )
AT-00069
( B )
AT-00070
11) Using an air compressor, apply air slowly to
each piston hole and remove the pistons.
12) Remove the seal ring from piston.
D: ASSEMBLY
1) Install a new seal ring to piston.
2) Apply ATF to the seal ring.
3) Insert the piston fully into upper valve body.
4AT-61
AUTOMATIC TRANSMISSION
AT-00071
AT-00072
AT-00072
AT-00073