Series 751 FireLock
®
European Alarm Check Valve Stations
11
5. Rotate the clapper out of the valve body. Inspect the clap-
per seal and seal-retaining ring. Wipe away any contaminants,
dirt, and mineral deposits. Clean any holes in the valve body
seat ring that are plugged. DO NOT USE SOLVENTS OR
ABRASIVES.
6. Inspect the clapper for freedom of movement and physi-
cal damage. Replace any damaged or worn parts by following
the applicable instructions in the “Maintenance” section, starting
on page 12.
7. Re-install the cover plate by following the “Installing Cover
Plate Gasket and Cover Plate” section, starting on page 14.
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