4 - 4 0 . RELAY VALVE REPLACEMENT (Con't).
Install relay valve (4) on studs (7) with three nuts (5) and new Iockwashers (6).
Apply antiseizing tape to all male threads.
Install four straight adapters (3) in relay valve (4).
Connect tube (1) to straight adapter (3) and tighten nut (2). Repeat for three remaining tubes. Remove tags.
Use a soap solution to check for leaks. No leaks are permissible.