a. Refer to Figure 2-50 and adjust relief valve as follows:
(1) Turn lock handle (5) clockwise to unlock handle assembly (6).
(2) Turn handle assembly (6) clockwise to increase relief valve pressure setting. Turn handle assembly (6)
counterclockwise to decrease relief valve pressure setting. Adjust so the valve relieves at 45 psi ± psi.
(3) Turn lock handle (5) counterclockwise to lock handle asembly (6) in place.
a. Reinstall gaskets (4) and valve assembly (3) on piping.
b. Secure with two clamps (2). Tighten with two thumbscrews(1).