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STEP 20: PREPARE FILL RISER FOR VALVE INSERTION IMPORTANT: Inspect the riser pipe for any foreign material , Over spray from tank relining or any internal burrs inside of pipe must be removed prior to Installa- tion. Failure to have an unobstructed riser pipe may prevent proper installation or operation of the valve. Thoroughly clean top of riser pipe. STEP 21 : REMOVE ELASTIC SAND Remove the elastic band securing the float to the valve body. The float will move into an outward position. STEP 22: INSERT DROP TUBE Make sure the upper O-Ring gasket is under the flange of the inlet tube. Hold the float down against the valve body and slowly insert the drop tube overfill valve into the riser pipe, Do not force valve into the riser pipe, If Figure r'3 any obstruction or foreign matter interferes with Make sure that the float is aligned along the length of smooth insertion of the valve, the riser pipe must be the tank. The length of the tank can easily be deter- cleared. mined by locating other manholes or pump boxes that are installed around other tank fittings. Look into the WARNING drop tube and align the deflector with the length of the Failure to follow the assembly tank. and installation Instructions or use of excessive force to insert Far testable rno-&& only: Unthread the socket adap- the OPW 71 SO will VOID THE tar assembly from the inlet tube (a 3/8" square drive WARRANTY. extension will attach to the socket adaptor, secure all tools to ensure they don't fall into the tank or valve) and Difficulty in removing the existing ensure float and poppet move freely when socket adap- fill tube (if there is one) means tar assembly is pulled on. When looking down into the there may be an obstruction in the upper tube ensure poppet is visible when socket adap- riser pipe. Look for burrs, deform tar is pulled and resets properly when socket adaptor is mations, excess tank lining rnateri- released. See page 17 for full testing details. If poppet al or other projections that may does not actuate freely take appropriate steps to correct interfere with easy insertion of the before proceeding. OPW 71 SCI. The 71 SO is designed for insertion into schedule 44 pipe, If figure 22 CAUTION: No obstruction in the tank can be within schedule 80 pipe has been used for the 14" from the center of the riser pipe or the valve riser, the 71 SO cannot be installed . If seamed pipe has may not operate properly (See Figure 24). been used, the internal weld bead may interfere with the OPW 71SO and prevent installation . If the OPW STEP 24; ALIGN VALVE 71 SO won 't slip in easily DON? FORCE IT! Damage to Install the OPW Jack Screw Kit and a 4" NPT nipple to the valve may result if excess force Is used . Examine the lock the valve In place, Refer to the Installation instruc- riser pipe carefully; determine the nature of the obstruc- tions supplied with the Jack Screw Kit. Fortestable tion; take appropriate steps to remove It, models ensure that the socket adaptor is aligned so It does not interfere with tha jack screw kit. (see F€g � STEP 23: CHECK INSTALLATION ure 24A). Install the Rotatable Product Adaptor (Refer Insert the drop tube all the way Into the tank until the to Installation Instructions supplied with the Product flange and gasket seat onto the top of the Face Seal Adaptor.) Make sure that the valve does not rotate Adaptor. The float will swing out into the operating while tightening the adaptor by observing the position position as it passes Into the tank. of the deflector, The valva must remain aligned along the laneSith nt the tank as in Step 23 . niapeat this stcp as necessary to assure proper valve alignment. 14