Chamberlain 7710CB 7710CB FOR CHAIN DRIVE OPERATORS - Page 2

ADDING AN ADDITIONAL HANGING BRACKET: Cut the enclosed hanging bracket (cross brace) to fit across the installed hanging brackets. Fasten the cross brace to the top and bottom hole of the hanging brackets (Figure 3 and Figure 4) using 5/16" -18x7/8" hex bolts, 5/16 lock washers and 5/16" -18 nuts. To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to structural supports of the garage. Concrete anchors MUST be used if installing any brackets into masonry. Figure 3 Lock Washer 5/16" Nut 5/16"-18 Lock Washer 5/16" Nut 5/16"-18 Hanging Bracket (Cross Brace) Bolt 5/16"-18x7/8" Figure 4 Lock Washer 5/16" Nut 5/16"-18 Lock Washer 5/16" Nut 5/16"-18 Hanging Bracket (Cross Brace) Bolt 5/16"-18x7/8" HARDWARE SHOWN ACTUAL SIZE REPLACEMENT PARTS Part No. Description Qty 183C158-14 Header Rail Extension 1 41A5807-2 10' Chain/Cable Assembly 1 Hex Bolt 5/16"-18x7/8" Nut 5/16"-18 Lock Washer 5/16" 183C157-10 Center Rail Section 1 41A3021 Rope 1 4A1008 Master Link Kit 1 Hanging Bracket (Cross Brace) Not shown actual size 114A2747F © 2013, The Chamberlain Group Inc. All Rights Reserved