Coleman HS400UTV-2 Owner's Manual page 56

4-31 Control Functions
Spring travel setting(Front)
Minimum(soft): 375mm(14.76 in)
Maximum(hard): 490mm(19.29 in)
Spring travel setting(Rear)
Minimum(soft): 402mm(15.83 in)
Maximum(hard): 490mm(19.29 in)
3. Tighten the locknut.
NOTE:
Always tighten the locknut against the
adjusting nut, and then tighten it to the
specified torque.
Rebound damping force
Turn the rebound damping force adjusting
screw in direction S to increase the rebound
damping force and thereby harden the
damping, and in direction F to decrease the
rebound damping force and thereby soften
the damping.
1.Rebound damping force adjusting screw