Series 756 FireLock
®
European Dry Valve Stations
22
8.
After all pressure is released from the system, remove all
cover plate bolts slowly. Remove the cover plate and cover plate
gasket.
9.
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.
10.
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 23.
11.
Re-install the cover plate by following the “Installing Cover
Plate Gasket and Cover Plate” section, starting on page 25.
12.
Place the system back in service by following the “Placing
the System in Service” section, starting on page 11.
WARNING
• Make sure the valve is depressurized and drained
before removing the cover plate bolts.
The cover plate will blow off if these bolts are
removed while the valve is pressurized, resulting in
serious personal injury and/or property damage.
CAUTION
• DO NOT use solvents or abrasives on or near the valve body seat ring.
Failure to follow this instruction could prevent the clapper from sealing prop-
erly, resulting in improper operation, valve leakage, and/or property damage.
