Sport Systems recommends always locking these systems out using a customer-supplied padlock to prevent unauthorized height adjustment of these systems (see attached photo). 

Follow all safety and operational directions when changing the height of these basketball units.  Torquing the height adjustment actuator beyond he upper and lower limit will result in damage to the worm gear. 

Product warranty does not apply to these actuators when they have not been locked out in an unsupervised  play area such as a park, private club, campsite or school yard.