Manaras Opera MGT - Page 8

8
Fi
g
ure
6
Installing chain
Note: All trolley operators are designed to mount directly over the center of the door, and the operator tracks
should clear the door by approximately 2.5" (6.4 cm). If it is not possible to mount the operator exactly
centered, it is possible to install it slightly off center for torsion spring doors.
5. Establish center line of door by measuring door width and marking a vertical line on the wall directly above the
door.
6. Open the door manually to determine the high arc (highest point) of door travel (see Figure 7). Using a
carpenter's level draw a line so that it will intersect with the vertical line determined earlier.
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7
Highest arc of travel
7. The wall mounting bracket has three bolt holes for mounting the front end of the trolley tracks. The bracket
should be attached to the wall with these holes 2.5" (6.4cm) above the high arc of door (Figure 8). Wood blocking
or angle iron framework may be installed on the wall to provide for the attachment of the front bracket.
Fi
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ure 8 Wall mount bracket
HIGH ARC POINT