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0 0 <br /> PLLD Site Prep and Installation Guide Transducer Installation- 1 <br /> 2. Ensure that the sealing surface for the valve's external O-ring is smooth and free from corrosion,pitting,and any <br /> material build-up [Figure 4-1]. <br /> IMPORTANT! Failure to ensure a smooth seal surface can result in false line leak alarms. <br /> \ <br /> J <br /> 1` <br /> { <br /> Sealing surface <br /> of pump por l <br /> Figure 4-1. Sealing surface for SwiftCheck Valve's external 0-ring <br /> 3. Lubricate the external O-ring on the valve using mineral oil or other suitable lubricant. <br /> IMPORTANT! Do not overtighten the SwiftCheck valve when installing it into the pump. Overtightening the valve <br /> can cause a flow restriction in the line! <br /> 4. Install the SwiftCheck valve[Figure 4-2]in the mechanical LLD pump port. <br /> IMPORTANT! Seal the NPT threads only with a UL-classified,nontoxic pipe sealant suitable for the fuel involved. <br /> 0 0 <br /> PLLD <br /> Sensor <br /> I <br /> SwiftCheck <br /> ® Valve <br /> LPumps\rdikswfv.eps <br /> Figure 4-2. SwiftCheck Valve and PLLD Transducer Installation <br /> INSTALLING THE PLLD TRANSDUCER <br /> 1. Thread the PLLD transducer into the SwiftCheck Valve [Figure 4-2]. <br /> IMPORTANT! Seal any pipe threads using a UL-classified,nontoxic pipe sealant suitable for the fuel involved. <br /> 2. Feed the PLLD transducer cable through the watertight cord grip on the PLLD transducer junction box.Tighten the <br /> nut on the cord grip to ensure a watertight seal. <br /> 4-2 <br />