How to Adjust a Stanley Bostitch Roofing Nailer

Disconnect the air hose from the roofing nailer. Grasp the handle of the nailer with one hand and the air hose coupling with the other. While holding the nailer firmly, pull the coupling away from the nailer until it disengages from the air nipple on the nailer.

Locate the Dial-a-Depth adjuster on the front of the nailer. This is a small dial, found on the front of the nailer, with the numbers 1 through 5 on it.

Turn the adjuster to change the depth. The dial has graphic instructions showing which direction leads to deeper setting and which leads to shallower. A setting of one will leave the nail head protruding from the surface while a setting of five will set it the deepest.

Reconnect the air hose. Hold the handle with one hand and with the other hand pull the coupling away from the nailer while pushing the coupling on to the air nipple. Once the coupling is seated firmly around the nipple, release the coupling.

Test the nailer by firing a nail into a shingle. Place a piece of shingle on a scrap of wood similar to the roof decking and fire a nail into it. Check to see if the nail is seated to your satisfaction and if not, readjust the nailer.