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Husky PV Vent Installation/Maintenance Instructions Page 1 of 1 <br /> PRESSURE/VACUUM VENT MODEL 4620 AND 4885 <br /> INSTALLATION AND MAINTENANCE <br /> INSTRUCTIONS <br /> INSTALLATION <br /> The PN Vent is designed to fit on top of a 2"vent pipe.Remove the P/V Vent from <br /> the carton and visually inspect for any shipping damage. <br /> Model 4620 SIip On P/V Vent <br /> The Model 4620 can be installed on <br /> either a threaded or not threaded 2" <br /> pipe.Hold the P/V Vent upside down <br /> e o Er screws and place the seal into the vent <br /> m m opening. Using an Allen wrench, back <br /> DRAi1 ROLE -_--_. the 4 set screws out so that the P/V <br /> Vent will slip over the vent pipe. <br /> (set screws&seal for Model 4620 only) <br /> Place the P/V Vent on top of the vent pipe and push or pull down on the P/V Vent to <br /> slightly compress the seal. Tighten the 4 set screws fmnly.Periodic maintenance is <br /> recommended(see below). <br /> Model 4885 Thread On P/V Vent <br /> Apply pipe sealant to the threads on the 2"vent stack.Screw the P/V Vent onto the <br /> vent stack and tighten snugly with a suitable wrench_DO NOT OVER-TIGHTEN. <br /> Periodic maintenance is recommended(see below). <br /> screw MAINTENANCE <br /> To clean or inspect the P/V Vent for foreign <br /> objects without removing the P/V Vent from the <br /> vent pipe: <br /> Remove the screws that holds the top <br /> cover on. <br /> Remove any debris that might be sitting <br /> inside the lower cover. <br /> Check the drain holes in the lower cover <br /> for blockage: _ <br /> The two (2) screens should not be <br /> removed. <br /> Reinstall the top cover and retaining <br /> screws. <br /> 6. Tighten the screws firmly. <br /> MOTE: DO NOT ALTER OR COVER TfM P/VVENT <br /> http:/ wvp.rv.huslky.yore/9041.htin 7/27/01 <br />