AMES Colt Series Ремонтні деталі - Сторінка 4

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Також для AMES Colt Series: Встановлення, обслуговування та ремонт (4 сторінок)

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Maintenance Instructions 8" – 10" (200 – 250mm)

Material/Tool Requirements:

• #4 Phillips screwdriver or

check, see Figures A and B.

•

– 13 x 5 fully threaded hex bolt (Service bolt).

•

" open end or socket wrench.

Instructions:

Prior to servicing any Ames valve, it is mandatory to shut down the water system by

closing both the inlet and outlet shutoff valves. After shutoff valves are closed, open

test cock #2, #3 and #4 to relieve pressure within the backflow assembly.

1. After #3 test cock has been opened to relieve pressure, remove #3 test cock from

housing. When repairing an 8" or 10" (200 – 250mm) device, remove both Victaulic

couplers from body. Slide the downstream Victaulic coupler gasket to the down-

stream side of the housing. The upstream Victaulic coupler gasket stays in place.

2. Remove check(s) to be maintenanced.

3. Locate the service hole and thread in the service bolt by hand until it contacts the

linkage. (Figure A)

4. Continue to thread in service bolt with the wrench until the service hole in the linkage is

aligned with the service notches on the spring arbors. (Figure A)

5. Insert the Phillips screwdriver through the arbors and service hole of the linkage

making sure that the tip of the screwdriver extends past the ends of the arbors by a

minimum of

" (6mm). (Figure B)

6. Back out the service bolt until load is transferred to the screwdriver. Continue to back

out the service bolt until sufficient clearance is achieved to remove the complete spring

mechanism.

7. To disconnect linkage, remove retaining clip and pin (store in a safe location

for reinstallation).

8. To remove spring mechanism, grasp the screwdriver at the center, pull complete

assembly straight out and store in a safe place.

9. Reinstall in reverse.

WARNING – While the spring mechanism is removed for check servicing; never pull

the screwdriver out or off the support notches on the arbors. Doing so may cause

bodily injuries.

" diameter rod, length sufficient to span diameter of

Service Hole

Figure A

Figure B