INSTALLATION INSTRUCTIONS
DIRECT COUPLING MOUNTING
Figure 4, page 8 illustrates several positions suitable for mounting the operator including center mount with direct coupling to the torsion shaft. Direct coupling may also be used in a side mount installation. Operators intended for direct coupling require an internal speed modification and must be ordered from the factory.
Refer to Figure 2, page 6 and Figure 5, page 9 and Figure 6, Page 10 for the location of the operator mounting holes.
IT IS ESSENTIAL THAT THE OUTPUT SHAFT OF THE OPERATOR AND THE DOOR SHAFT BE CAREFULLY ALIGNED. MISALIGNMENT OF THE SHAFTS WILL CAUSE EXCESSIVE STRESS AND WEAR.
Raise the operator to a position which brings the door and operator shafts into alignment and connect them together with the flange coupling supplied with operator. Support the other end of the operator jackshaft from the ceiling with a chain or rope. Holding the operator in a vertical position, carefully measure the distance from the operator mounting plates to the wall. Lower the operator to the floor and construct a secure mounting surface using the dimension measured in the previous step. Again raise the operator to its mounting position and
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CHAIN HOIST AND FLOOR DISCONNECT INSTALLATION
If the operator is furnished with a chain hoist (Model
Fasten the chain hoist holding bracket furnished with the operator to the wall approximately four feet from the floor. This bracket is also used to hold in place the release chain for both the chain hoist equipped units (Model
107174
BEFORE PROCEEDING WITH THE
OPERATOR INSTALLATION AND
