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1/2 HP Chain Drive Garage Door Opener
5. Attach the curved bracket to the door bracket with the clevis pin (Ø8-35) and split pin as shown:
6. Raise the trolley safety release lever to the up/locked position, and slide the outer trolley onto the inner
trolley so they lock into position as shown:
7. Attach the straight door arm section and attach with clevis pin (Ø8-25) and split pin as shown:
Trolley Safety Release Lever