A common part to replace on a Hufcor paired-panel operable wall is the socket and/or roll pin between panels.
When these sockets, sometimes called couplers or cogs, are engaged with each other it allows both the panels’ seals to be set at the same time when operating only the one on the trail edge of the trail panel.
Sockets can get damaged when one seal of a pair is extended and the other is not and then the panels are forced into position.
Within the last 20 years or so, Hufcor has only used two different styles of sockets. The 5000 & 5000R products used a single socket which engaged with a single roll pin on the adjacent panel (socket part #34-702 & roll pin part #53-265), pictured on the right. Hufcor’s old 6000 series panel used the same socket that is used today in the 600 series panel which was released in 2005/2006 (socket part #12-667 & roll pin part #53-265), pictured on the left.
Hufcor Old 5000/5000R Series
Socket #34-702 & Roll Pin #53-265
Bull Nose Removal: You will likely need to remove a bull nose to access the horizontal shaft and socket. The bull nose is the full height vertical tongue-and-groove piece on the edge of the panel. Remove the bull nose by removing the screws. On 5000/R series panels, if there are no screws, it will pop off by squeezing the sides.
Removal of existing part:Use a hammer & a steel punch that is slightly a smaller diameter than the roll pin to push the old roll pin through the socket. Once there is enough of the old roll pin protruding through the other side of the socket/shaft, grip it with pliers. Use the hammer to strike the pliers effectively pulling the roll pin the rest of the way through. Once the roll pin is removed, the socket will slide off the square shaft.
Installation of New Part: On a different surface (work bench, floor, etc), start the roll pin in the socket by tapping it with a hammer, or on 5000/R models, gently tap the roll pin into the horizontal shaft. The roll pin is a snug fit into the hole, so it is important to not hit the roll pin so hard that the end of it splays or flattens. Slide the new socket with roll pin onto the shaft so that the roll pin holes line up (on 5000/R models, you will need to install the socket before installing the roll pin). Place channel lock pliers on the end of the roll pin and on the opposite side of the socket. Squeezing the pliers will push the roll pin through the shaft until the roll pin in centered on the shaft/socket. When complete, reinstall all parts that were removed.