3003 W CASINO RD BLDG 40-58 2025-09-29

Page 3 of 7 Ar ® EASY RISERO SWING MAW CHECK VALVE MODELS E-1 & F-1 The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058 Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com Visit the Viking website for the latest edition of this technical data page: www.vikinggroupinc.com A CAUTION NEVER apply any lubricant to seats, gaskets, or any internal operating parts of the valve. Petroleum-based grease or oil will damage rubber components and may prevent proper operation. 7. When internal inspection of the Easy RiserO Swing Check Valve is complete,perform step 5 of paragraph 6-B.MAINTENANCE to re-install cover and clapper assembly (2-11). 6-13. Maintenance (Refer to Figure 1.) 1. Perform steps 1 through 5 of paragraph 6-A, FIVE-YEAR INTERNAL INSPECTION. 2. To replace clapper assembly(3, 6-11): a. Remove the cover screws (14)from the cover (2) using a Socket Wrench with a 9/16"socket. b. Remove the cover and clapper assembly(2-11)from the valve. c, Remove the cover gasket(13) by sliding it over the clapper assembly. d. Remove the existing clapper assembly(3, 6-11)from the cover assembly(2): i. Remove one of the retaining rings (5)from the clapper hinge pin (4) using a flat head screwdriver. ii. Remove the clapper hinge pin (4)from the cover and clapper assembly.This will allow the clapper assembly(3, 6-11) to be removed from the cover assembly (2). e. Install the new clapper assembly(3, 6-11)onto the cover assembly (2): i. Make sure the clapper rubber(9) is facing opposite the direction of the flow arrow on the inside of the cover(2). ii. Line up the holes of the cover assembly (2)and the clapper assembly (3, 6-11) and insert the hinge pin (4). iii. Install the retaining ring (5)onto the hinge pin (4). iv. Install the cover gasket(13)onto the new cover and clapper assembly(2-11)by sliding the cover gasket(13)over the clapper assembly (3, 6-11) and lining up the holes with the cover(2). v. To install the new cover and clapper assembly(2-11) into the valve, slide the clapper assembly into the valve with the clapper rubber (9) lined up with the water seat (12). Ensure the rubber retainer (10) fits inside the seat of the valve (pull back slightly and there should be some resistance). vi, Line up the holes of the cover (2) and cover gasket (13)with the valve body (1) and replace the cover screws (14) using a Socket Wrench with a 9/16" socket. 3, To replace the clapper rubber(9): L Remove the cover screws (14)from the cover(2)using a Socket Wrench with a 9/16"socket. ii. Remove the cover and clapper assembly(2-11)from the valve. iii. Remove the cover gasket(13)by sliding it over the clapper assembly (3, 6-11). iv. Use a 7/32"Allen wrench to hold the button head socket screw(11)in place and remove the jam nut(6)from the clap- per rubber(9) using a Socket Wrench with a 9/16"socket v. Remove the button head socket screw(11)and sealing washer(7)from the clapper assembly(3, 6-11). vi. Remove the clapper rubber retainer(10) from the clapper(8)to free the clapper rubber(9). vii. To install the new clapper rubber(9), position the clapper rubber(9) on the clapper assembly so the grooved edge is facing down.This will allow the clapper rubber retainer(10)to fit up into the grooved edge of the clapper rubber (9). viii.lnstall the button head socket screw (11) and sealing washer assembly (7) and the jam nut (6) using a 7/32"Allen wrench and a Socket Wrench with a 9/16"socket. ix. Install the cover gasket(13)onto the cover(2) by sliding it over the clapper assembly (3, 6-11). x. Re-install the cover and clapper assembly(2-11)back into the valve,with the clapper rubber(9)lined up with the water seat (12). Ensure the clapper rubber retainer (10)fits inside the seat of the valve (pull back slightly and there should be some resistance). A. Line up the holes of the cover (2) and cover gasket (13) with the valve body (1) and replace the cover screws (14) using a Socket Wrench with a 9/16"socket, 4. To replace the cover gasket (13): i. Remove the cover screws (14)from the cover(2) using a Socket Wrench with a 9116"socket. ii, Remove the cover and clapper assembly(2-11)from the valve. iii. Remove the cover gasket(13)by sliding it over the clapper assembly (3, 6-11). iv. Install the new cover gasket(13) by sliding it over the clapper assembly (3, 6-11), onto the cover(2). 5. Reinstall the cover and clapper assembly (2-11) into the valve: i. Line up the clapper rubber(9)with the water seat (12), Ensure the clapper rubber retainer(10) fits inside the seat of the valve(pull back slightly and there should be some resistance). li. Line up the holes of the cover (2) and cover gasket (13) with the valve body (1) and replace the cover screws (14) using a Socket Wrench with a 9/16" socket. Form No. F_011189 18.10.11 Rev 18.1.P65