Davit-launched Self-righting Inflatable Liferaft Release Hook :

　　Operation Instruction:

　　1.hoist hanging hook:take out the pin,pull the hook,Iet Spring housing and handle

　　get to "hook" position.hoist the life when hook locked.

　　2.hoist releasing hook:when hook is loaded,pull the handle of spring housing with

　　pin to "releasa" position,When hook is nonleaded,handle of spring housing can

　　auromatically reach the " releasingn hook"position,then the life raft releases the hook.

　　Checking list

　　1.The junction between hook and pin shaft should be flexible.

　　2.Positions on the operating handle(hitching,releasing,discharging)should be exact and flesible.

　　3.The junction between roller and pin shaft should be flexible.

　　Maintaining and repairing:

　　After being used,the release hook should be checked periodically,

　　all the moving parts should always being filled with enough grease:

　　since some parts wore,bent,or the coutractility of spring cannot meet

　　the requirement.the relesing motion not flexible or being locked

　　deadly,then these relatingparts should be changed.

　　Periodical maintaining plan

　　The release hook must be checked every three months to ensue it's flexible

　　and not being locked,so that it can be released smoothly when working.