Title: TFP340_03_2007.pdf
When installing wax coated sprinklers with the adjustable Crescent wrench, additional care needs to be exercised to prevent damage to the wax coating on the sprinkler wrench flats or frame arms and, consequently, exposure of bare metal to the corrosive environ- ment. The jaws of the wrench should be opened sufficiently wide to pass over the wrench flats without damag- ing the wax coating. Before wrench tightening the sprinkler, the jaws of the wrench are to be adjusted to just con- tact the sprinkler wrench flats. After wrench tightening the sprinkler, loosenPage 4 of 6the wrench jaws before removing the wrench.