Step 12: The release valve

Picture of The release valve
First photo--I have a dental pick I can use to remove old seals. This "O" ring shows cracks from age when stretched a little.  Match the new "O" ring from the parts kit to the old "O" ring.  Coat it with jack oil.  Install the new "O" ring.  

Second photo--Install the conical metal seal in the hole for the release valve.  The pointed end goes in first.  Tamp on it with a small screwdriver to make sure it seats at the bottom of the hole.  Thread the release valve into the hole.