Husqvarna TE 250-310 2012 I.E. Workshop Manual page 187

ENGINE REASSEMBLY
TE 250 - 310 2012 I.E. / TE 250 - 310 2012 I.E. USA
TC 250 2012 - TC 250 2012 I.E. USA
TXC 250 - 310 2012 I.E. USA
Insert the selector drum (6) into its seat.
Install the fork shafts (7) and (8) and make sure the forks move freely.
Make sure the fork bushings (5) are correctly located in the drum grooves (6).
Insert the circlip (9) of the input shaft fork shaft.
Rotate the selector drum to test operation.
Workshop Manual Ed. 12-2011
H.25