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Installation Instructions for Snap Seal Inclinometer Casing <br /> 5.2 Installing an End Cap <br /> Before installing the first section of casing in the borehole, an end cap must be installed as indicated in <br /> Figure 2. <br /> INSTRUMENT <br /> ALIGNMENT <br /> GROOVES <br /> ALI GN M EN T KEY <br /> Figure 2—End Cap Joint <br /> Align the notch on the cap with the key on the casing. Slide the cap on to fully engage the notch and key <br /> (you will hear a"snap" as the lock ring is seated). Visually ensure proper assembly. Typically, a grout <br /> tube will be attached to the first section of casing. Additional grout tubes may be added during installation <br /> for multistage grouting. In some situations, a special grout cap will be required instead of the standard <br /> end cap. Installation is the same, except for the fact that the grout cap has a provision for a grout tube. <br /> The casing, with attached cap, can then be lowered into the hole. If applicable, attach a safety line, and a <br /> grout tremie line. <br /> 5.3 Assembling Casing Sections <br /> Subsequent casing sections in a borehole should be assembled in the same manner as the end cap <br /> (described above). Remove the protective caps and check that the O-ring and lock ring are greased. <br /> Align the key and the keyway of the two sections. Push the sections together until the joint snaps closed. <br /> In some cases, the user may find it easier to push the sections together using a twisting motion. In each <br /> case, the alignment button should be aligned with the notch in the female end (Figure 1). <br /> Some practitioners use a 2-inch wide waterproof duct tape over the joint. Just a single wrap of this tape <br /> will improve the lateral strength of the joint by more than 100%and in tension by 50%. <br /> 7 <br />