Viking F-1 Manuel de service télécharger pdf (Page 9)

TECHNICAL DATA

March 28, 2013

Dry 120i

DRY VALVE

MODEL 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

Replace and tighten hex-head screw (17). DO NOT over-tighten.

9. To Remove Clapper Assembly (5):

While holding spring loaded clapper arm assembly (8) down, remove a retaining ring (7) from one end of the clapper

rod (6a).

Release the spring-loaded clapper arm assembly (8) and allow it to latch in the open position.

Slide the rod (6a) out of the clapper arm assembly (8) to free the clapper assembly (5).

Remove the clapper assembly (5) for inspection or replacement.

10. To Re-install Clapper Assembly (5):

Reverse disassembly procedures a through d in step 9 above.

11. To Remove the Latch (2):

Remove the ½” NPT pipe plug (4) (outside of the valve) to expose the latch pin (3).

While holding the latch (2) with one hand, remove the latch pin (3).

Remove the latch (2).

12. To Re-install the Latch (2) and Latch Pin (3), reverse disassembly procedures a through c in step 11 above.

The internal member assembly of the dry valve consists of several sub-assemblies. To service these sub-assemblies, it is necessary

to disassemble the dry valve.

13. To Disassemble The Dry Valve:

Disconnect the trim and remove the valve from the system piping.

Use dry valve reset bar/wrench, part number 02977BM, to remove hand-hole cover bolts (21) from the base (22).dry valve reset bar/wrench, part number 02977BM, to remove hand-hole cover bolts (21) from the base (22).to remove hand-hole cover bolts (21) from the base (22).

Remove the housing (1) from the base (22). Member assembly components (5-15), and (17-19, 21, 25) are accessible for

replacement.

When inspection and/or replacement of member assembly components is complete, re-assemble the dry valve.

14. To Re-assemble the Dry Valve:

Reverse disassembly procedures a through c in step 13 above.

The socket-set screw (23) will need adjustment. After the valve has been completely reassembled, latch the clapper in

place. With a 1/4” (6.35 mm) Allen wrench, turn the screw clockwise until it contacts the hook assembly (15). Then, turn

the screw one complete turn counter-clockwise. Set the system and trip test the valve to verify proper operation of the

valve.

15. To Remove the Hook Assembly (15):

Remove a retaining ring (7) from one end of the hook rod (6b).

Slide the rod (6b) out of the bushings in the air plate assembly (11) to free the hook assembly (15).

Remove the hook assembly (15).

16. To Re-install the Hook Assembly (15):

Reverse the disassembly procedures a through c in step 15 above.

17. To Remove the Clapper Arm Assembly (8) and Spring (9):

Remove a retaining ring (7) from one end of the clapper arm rod (10).

Slide the clapper arm rod (10) out of the bushings in the air plate assembly (11) to free the clapper arm assembly (8),

taking care to retrieve the spring (9).

Remove the clapper arm assembly (8), and spring (9).

18. To Re-install the Clapper Arm Assembly (8):

Reverse disassembly procedures a through c in step 17 above.

19. To remove the Diaphragm (12) and Diaphragm Retainer (13):

Use a 9/16” wrench to remove the hex-head screws (14).

Remove the diaphragm retainer (13) and diaphragm (12) for replacement. If the diaphragm rubber shows signs of wear,

such as cracking or cuts, replace the rubber diaphragm.

20. To Re-install the Diaphragm (12) and Diaphragm Retainer (13):

Reverse disassembly procedures a and b in step 19 above.

When re-installing the diaphragm retainer (13), cross tighten hex-head screws (14) to 20 ft. lbs. of torque for even com-

pression of the diaphragm (12).

When assembling the base (22) to the housing (1):

i. Invert the housing (1) on a work bench so the holes for the hand-hole cover bolts (21) are facing up.

ii. Position the complete member sub-assembly (5-15 & 17-19, 21, 25) with the screw holes in the diaphragm (12),

aligned with the screw holes in the inverted housing (1). Use care to align the screw holes so the hook assembly

(15) properly aligns with the set screw (23).

iii. Position the base (22) over the inverted housing (1) with the member assembly (5-15 & 17-19, 21, 25). Align the

screw holes so the ½” (15 mm) NPT trim connection in the base (22) aligns with the ½” (15 mm) NPT trim connec-

1 2 3 4 5 6 7 8 9 10 11 12

Commentaires sur ces manuels

Pas de commentaire

Viking F-1 Manuel de service Page 9

Commentaires sur ces manuels

Produits connexes et manuels pour Outils de jardin Viking F-1