Husqvarna TE 250 - 310 2011 I.E. Workshop Manual page 225

FRONT SUSPENSION
Loosen the cap nut at the top of each outer tube.
(Note: it is good practice to moderately slacken the cap nuts before removing
the fork legs from the motorcycle).
Loosen the fork cap nut and the nut with a wrench.
Remove top cap nut, spring retainer, spring and rebound adjuster rod.
Drain the oil.
Pump the piston rod up and down to drain oil from the cylinder.
I.19
Ed. 07-2010