Description
this part replaces an easily broken piece on the ad400 pro that holds the umbrella in place. overtightening of the set screw creates extreme pressure on this piece and can cause it to break. to prevent breakage, only tighten the set screw down enough so that it simply touches the umbrellas shaft. the clip inside will hold the umbrella in place, the set screw simply stabilizes it and does not need to apply much, if any, pressure the umbrella shaft.
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