Ames Fire & Waterworks 1000SS Stainless Steel Detector Check Valves - Manual (Page 2)

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NOTICE
A. The installation and maintenance of any Ames Detector Check
Valve should be performed by a qualified licensed technician.
Failure to do so may result in a malfunctioning assembly. All
instructions should be read thoroughly by the technician before
installation or performing any maintenance on the assembly.
B. Before installing an Ames Detector Check Valve, flush the lines
thoroughly to remove all debris, chips and other foreign objects.
Failure to do so may make the assembly inoperable.
C. Allow sufficient clearance around the installed assembly to conduct
testing, servicing and inspection. Allow a minimum of 12” from the
flood level to the bottom of the assembly.
Installation Instructions
WARNING !
Depressurize valve before servicing.
Removing Cam-Check
Place yourself so that the water flow through the valve is left to
right.
1. Shut down water system by closing two gate valves and lock out
system if possible. Slowly open bleed port to relieve internal pressure.
After pressure is relieved, loosen bolts on groove coupler and remove
groove coupler and copper plate from valve body.
2. Unscrew (counterclockwise as viewed through the port facing the
check) the Cam-Check. Insert the two grooved coupler bolts into
the holes in the face of the seat. Be sure that the pins or bolts are
installed with one on each side of the cam bar as shown. Insert a long
screwdriver or pry bar between opposing pins and loosen the check
counterclockwise) until it comes free to turn by hand. Finish unscrew-
ing the Cam-Check by hand using the support ears for the clapper
and cam bar to turn the check. (See Fig 1A)
3. Lift the Check straight up and out of the port access hole.
Cam-Check Removal
4" and 6" (100 and 150mm)**
Cam-Check Installation
4" and 6" (100 and 150mm)**
Install the Cam-Check
Prior to installing the Cam-Check, ensure that all threads are clean
and free of debris, grit, or other particles. Thoroughly clean O-rings
grooves and lubricate O-rings with an FDA approved lubricant.
1. Insert the Cam-Check through the cover port with the clapper
facing down. Align the threads of the Cam-Check with the
threads in the body and start to thread the Check in by hand
- using the ears which extend from the seat ring to turn the
check assembly. DO NOT use the clapper or the cam bar to
turn the check assembly.
2. Tighten the Cam-Check. Insert grooved coupler bolts into
the holes in the face of the seat (or use the bolts from the lid
groove coupler). Be sure that the pins or bolts are installed
with one on each side of the cam bar. Insert a long screw
driver or pry bar between opposing pins and tighten the check
(clockwise as viewed through the port facing the check) until
it comes to a solid stop. The back the check out about 15
degrees or from the 1:00 position to the 12:00 position. (See
Fig 1B).
START UP: After re-installation of the cover plate and groove
coupler — the downstream shutoff valve should be closed. Open
upstream gate slowly, fill the valve and bleed the air through bleed
port. When valve is filled, open the downstream shut off slowly.
Failure to bleed air from assembly may cause water hammer or
shock damage to the water system.
Figure 1A
Figure 1B