AMES SILVER BULLET 3000SS Series Installation Instructions - Page 3

Browse online or download pdf Installation Instructions for Control Unit AMES SILVER BULLET 3000SS Series. AMES SILVER BULLET 3000SS Series 4 pages. Double check valve, assemblies & double check detector assemblies

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Maintenance Instructions

NOTE: Ames assemblies require minimum maintenance. All

assemblies must be retested once maintenance has been

performed. Before servicing be certain shutoff valves are closed.

Shut down water system and lock out system if possible.

Slowly open all ball valves to relieve air and water pressure.

Loosen bolts on groove coupler and remove groove coupler

and cover plate from valve body.

Remove #1 Cam-Check assembly by using your hands to

unscrew (turn counter clockwise) Cam-Check and remove

through top access port. Do not use Cam Arm as a handle to

unscrew Cam-Check. If Cam-Check cannot be loosened by

hand, insert a long screwdriver between valve body and Cam-

Check (see figure 3). Slowly apply pressure against the Cam-

Check until loosened. Finish unscrewing by hand. Unscrew

#2 Cam-Check (turn counter clock-wise) by placing a long

screwdriver between lugs and applying pressure to loosen #2

Cam-Check. Finish unscrewing by hand.

To clean #1 Cam-Check, (except 2

the Cam Arm opening stud on the outlet flange of the valve

assembly. Slide the Cam Arm over the stud with the check

threads facing downward (figure 1). Tighten

to secure cam bar. Slowly pull the assembly outward to open

check allowing exposure of the seat and clapper contact area

for cleaning. To clean #2 Cam-Check, lift Cam Arm and hold

in open position. Raise clapper so that the end of the Cam

Arm rests between roller and clapper (figure 2). Thoroughly

clean the seat area and clapper sealing surfaces of both

Cam-Checks. Rinse Cam-Checks and O-rings thoroughly.

Inspect seats, clapper sealing surfaces, Cam Arms, and O-

rings for damage. If not damaged, gently close the clapper. If

damaged, install a new Cam-Check assembly and/or O-ring.

Before reinstallation of Cam-Checks thoroughly clean O-ring

groove and lubricate O-ring with FDA approved lubricant.

Insert and thread #2 Cam-Check first and then #1 Cam-

Check. #2 Cam-Check should be tightened by inserting a

long screwdriver between lugs to tighten firmly (see figure 1

on reverse side). Do not over tighten. Tighten #1 Cam-

Check firmly by hand only. Replace cover plate, clean

groove coupler gasket and groove, replace groove coupler.

Close ball valves.

" – 4" DC check) locate

" nut on stud

Figure 3

Cam Arm Open Pin

Cleaning Position

#1 Cam-Check 2

O-ring Seal

& Groove

Seat

O-ring Seal

& Groove

#2 Cam-Check DC & RP

O-ring Seal

& Groove

Lug

Seat

Figure 1

Valve Outlet Flange

Threaded Stud on Flange

6" & 8" 1st Check DC

6" & 8" 2nd Check DC

Figure 2

" – 6"

Spring

Cam Arm

Roller

Hole –

6" & 8" Only

Clapper

Spring

Cam Arm

Roller

Hole –

6" & 8" Only

Clapper

O-ring Seal & Groove