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Sun, Sep 3, 06 at 17:13
| I have a Liftmaster GDO that is now 12 years old. I have had no problems with it - yet. I notice the chain is sagging about 2.5 - 3 inches below the rails when closed. It is also "less smooth" in opening and closing. I have used the tensioner bolt to make it as tight as possible - but that is the best it will do. Does anyone know how or if links can be removed from the chain. It isn't intuitively obvious to me how but I am guessing it can be done. |
Follow-Up Postings:
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| Wear increases with chain tension. Some sag in a long span is going to occur. If the unit is working leave the chain alone. |
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| A chain can be shortened or lengthened by removing or adding links but a special tool is required. Your door may just be closing too far causing the chain to sag but it sounds like you have additional problems. I think a call to a door technician is in order. |
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