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Flexible Underground Piping Manual envirOn � l (1). Apply pipe dope to the threads of the 12.3.4 Upper Riser Pipe Assembly steel riser pipe. Hand tighten the steel riser pipe into the 1.5" coax riser plug. NOTE: If the jacketed riser pipe assembly is to be Then tighten until secure using a installed underneath and through the bottom of a deep plumbers wrench and pipe vise. dispenser pan,then loosely install the appropriate sized flexible entry boot over the riser jacket with the bolts facing up. (1). Insert a riser pipe nut facing upward (2). Insert the coax riser plug into the the first,then the riser jacket rubber bushing full 36" with taper facing upward and finally the coax fitting. Now insert the shear valve adapter with the female length of the yellow riser jacket over the threads facing upwards. Allow all steel riser pipe until it bottoms out on the inside of the coax riser plug. these components to rest on the bottom of the riser pipe assembly. (2). Install a shear valve (must have external NPTthreads) to the steel riser (3). Mark at the cut point on the outside pipe, applying pipe dope to the steel of the riser jacket 1-1/4" below the top riser pipe threads. There must be 4" of edge of the riser steel pipe contained steel pipe extended beyond the riser inside. jacket to allow the pipe wrench to grab the steel riser pipe. ]it (3). Now temporarily mount the riser (4). Remove and cut riser jacket to the pipe assembly as described in section t� pre-measured length (1-1/4" below the (12.3.5). top edge of the riser) and then reinstall NOTE: Overtightening of the shear the cut jacket over the steel riser pipe. valve adapter to the steel riser pipe or shear valve could damage the shear valve adapter. (5). Place lubricant (white Lithium (4). Apply pipe dope(soft set type)to the external threads of the installed grease or 0-ring lubricant) generously shear valve. Now slide up the shear around the riser jacket, 1/2" above the valve adapter and thread it onto the coax riser plug. base of the shear valve. NOTE: For coaxial fitting NPT threads, use only UL®classified thread sealant specifically formulated for gasoline and petroleum products. Do not overtighten coax type (6). Insert the riser jacket rubber bushing fittings. over and down the yellow riser jacket. Position the bushing securely into the coax riser plug. (5). Place lubricant Iwhite lithium grease or 0-ring lubricant) generously around 1 the riser jacket, 1/2" below the shear �.. valve adapter as shown. (7). Insert the coax riser nut (extra-long) over and down the yellow riser jacket. Tighten the nut securly onto the fitting so (6). Position the rubber bushing securely that the rubber bushing is fully compresed.Do not use any tools to secure into riser pipe adapter. Tighten the riser coax riser nut. pipe nut securely onto the shear valve adapter so that the rubber bushing is fully compressed. Do not use any tools ki to secure the coax riser nut. 14