7.0.11 Use the finger on one hand to fully depress the Oval Button (3) so that the Button’s Stem passes
through the center of the Selector Valve (36) and the Selector Valve is pushed firmly against the Exhaust
opening. Use the other hand to place the new self locking Nut (37) over the Stem’s threads (See Photo 30)
7.0.12 Use the 1/4” Nut Driver to tighten the locking Nut onto the Stem threads. Stop tightening the Nut as
soon as you feel it bottom on the threads. (See Photo 31)
23
Photo 31
Photo 30