Subaru impreza 2002 Service Manual page 48

Manual Transmission and Differential
3. INTERLOCK MECHANISM (DOUBLE-MESHING PREVENTION MECHANISM)
The interlock mechanism makes it impossible to shift the transmission into two gears at once.
When the interlock arm selects the shifter arm corresponding to the gear into which the driver is
going to make a shift, the interlock blocks also move in the same select direction, preventing the
other shifter arms from being selected.
The gap between the two blocks is adjusted such that only one shifter arm can enter it, so the inter-
lock blocks prevent the other two shifter arms from being selected even if the driver operates the
shift lever in a way that otherwise would cause simultaneous engagement of two gears.
D
When shift lever is properly operated
(1) Interlock arm
(2) Interlock block
(3) 5th-6th shifter arm
SHIFT AND SELECT MECHANISM
6MT-10
(4) 3rd-4th shifter arm
(5) 1st-2nd shifter arm
(6) Reverse interlock block
NF0605