Husqvarna TC 250 2010 Workshop Manual page 236

FRONT SUSPENSION
Push down the inner tube.
Slip the tool shown in the figure between wheel axle carrier and cartridge nut.
Insert the rebound adjuster rod into the piston rod and tighten the adjuster
screw.
Be careful not to hurt your fingers.
Tighten the adjuster screw all the way in.
Make sure that there is some play between the bottom edge of the adjuster screw
and the upper edge of the nut.
Tighten nut and adjuster to 28 Nm (20.6 ft/lb) using a wrench.
I.16
Part. N. 8000 H1489 (10-2009)