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JDC/JHDC Installation (continued)
Mount the Operator
The wall or mounting surface MUST provide adequate support for the operator.
The surface must:
•
Be rigid to prevent play between the operator and the door shaft.
•
Provide a level base.
•
Permit the operator to be fastened securely and with the drive shaft parallel to the door shaft.
1.
Place the door sprocket on the door shaft so it can be moved to align vertically with the operator drive shaft.
2.
Insert the keys and fasten the sprockets with the set screws (recommended torque for the set screws is
34-45 in/lb).
3.
Hold the operator in the desired mounting position so the door sprocket and the drive sprockets are vertically
aligned.
4.
Mount the operator to the wall or mounting plate where the operator can be moved to aligned with the appropriate
hardware (not supplied).
5.
Wrap the drive chain around the door sprocket and the drive sprocket, then secure with the master link.
NOTE: Chain links may need to be removed to achieve appropriate chain length.
NOTE: It is highly recommended to add a thread adhesive to secure the set screws in place.
Secure the Chain Hoist
1.
Fasten the door retaining bracket 4 feet (1.2 m) above
the floor.
NOTE: If the position of the operator causes the hand
chain to hang in the door opening hook the chain to
the side near the top of the door jamb.
1
20
2
5
Door retaining bracket
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