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�� <br />�� 0 <br />Primary Piping System Installation <br />JOINT�������' <br />If the adhesive or the pipe <br />^ surfaces are cool, push and hold for <br />Bell and Spigot Joint afew seconds toallow time for the <br />THE SPIGOT MUST BE ALIGNED AND LOCKED IN edhemk/o to start flowing out of the <br />THE BELL Aoncked wrmisaligned joint will result in false tapered joint. If additional force in <br />lock upand possible joint failure either during testing mrmda needed, erubber mallet ormstrong <br />later date. piece ofwood, ormdead blow hammer iodrive the pipe <br />together imthe preferred method. <br />Brush adhesive an both surfaces. <br />To minkintas contamination, apply <br />adhesive to the bell first. Adhesive <br />should always be worked Into <br />the machined surface by applyhg <br />pressure during application. This <br />wui vet our the machined surface <br />and mainialn the required thin <br />bond line. Be sum that the adhesive is deep down <br />taper surfaces an the spigot and the cut and of the <br />pipe are uniforrrdy covered. Excess adhesive will! <br />Connections into fittings are made using the normal <br />bell and spigot method. Athneaded (r]\B.) spigot can be <br />bonded into msmooth bell (@Ung).orasmooth spigot can be <br />bonded into a threaded (T.A.B.) bell. <br />VVhemthe adhesive starts squeezing out ofthe joint, use <br />mbron0erb|owm.Proper pipe alignment iaimportant. Maintain <br />back pressure against previously assembled joints toavoid <br />shaking them loose. After the joint has started tomake up, <br />hit until nofurther engagement can be seen at the joint. <br />When emQmQommnt stopm, the joint imlocked. Always check <br />previous bonded joints toensure they have not backed out. <br />NOTE: Dmnot use this method where the spigotend would <br />be hit. Use comp-sdongeinthis case. Qn27-4^(5Omm- OD <br />mm) diameter pipe. mthmem-pound (4 hg) shop hammer is <br />adequate. <br />Allign and lock the joint For 2' <br />(50 mm) fiffirigs, inswt spigot <br />into the bell until surfaces kRich, <br />then push and tum at the same <br />time until a lock Is achieved. Only <br />a quarter turn to a half turn is <br />usWly needed. On T and 4" (75 <br />to lock ft joint is impractical. Driving force must be <br />W <br />