Rolling Curtain Overhead Steel Service Door Instructions

Prepare

• 1

  Read the instructions for your overhead door. Familiarize yourself with the various parts and the order of assembly.The components names and installation procedures vary according to the manufacturer. Clean the work area by removing obstructions, debris and protruding objects from the floor. Place cardboard or a piece of cloth on the floor of the work area to prevent damage to the curtain. Wear gloves and safety goggles.

• 2

  Check the wall surfaces above the opening and on both sidewalls. Remove obstructions that might interfere with the installation of the guide angles, spring assembly or the travel route of the curtain.

• 3

  Verify that the height and width of the door jamb meet the dimension requirements for the door model. Check the level of the floor sill with the carpenter's level. Mark the high floor sill level location on the low side jamb for out-of-level sills.

Install Guide Angles

• 4

  Install a guide angle on each door jamb. Place the level against each guide angle; make the guide angles plumb (straight) and square with each other. Make sure that the tops of the guide angles are level with each other. Anchor the guide angles into wood jambs with wood screws.

• 5

  Follow the instructions for installation of the guide angles for masonry or steel jambs in lieu of wooden jambs. Secure the guide angles to masonry jambs with sleeve anchors. Some manufacturers suggest welding guide angles to metal jambs; others may recommend the use of carriage bolts or self-tapping screws.

• 6

  Install each bracket tab on each bracket into the opening in the guides and slide into place. Secure the door brackets to the door guides on the right and left side. Use the bolts provided with the door.

Install Barrel

• 7

  Identify the right-hand side and left-hand side of the head-plate brackets and the barrel assembly and match them. The barrel assembly is the cylindrical mechanism that supports the curtain and rolls into an open or closed position. Match the drive bracket properly; for example, use a right-hand bracket with a right-hand dive barrel for a right-hand side door operation. This step prevents torsion spring failure in the barrel, which could lead to the curtain free falling and causing serious injury or death.

• 8

  Insert the drive end of the barrel assembly through the opening in the drive bracket bearing. Guide the tension end of the barrel through the tension bracket. Connect the tension wheel to the barrel's shaft with the pin or key.

• 9

  Employ a forklift or other lifting mechanism to raise the barrel, with the brackets secured, to the top of the guides. Secure the head-plate brackets to the inside of the guide angles with the carriage bolts. Insert the bolt heads from the interior side of the brackets. Center the barrel between the brackets. Use the carpenter level to ensure that the barrel assembly is level.

Install the Curtain

• 10

  Lift the coiled curtain into place. Tie two or three slings made from heavy rope capable of supporting the curtain's weight to support the curtain. The slings will keep the curtain from rolling and possibly damaging the door. Center the curtain between the brackets. Follow the instructions for securing the curtain. Some slats have slots that screw in place; other curtains may attach to rings.

• 11

  Insert the ends of the bottom bar into the guide angles and lower the curtain into place. Lubricate the guide angles with paste wax to ease the travel of the door.

• 12

  Read the instructions carefully for applying the spring tension. Typically, the installer uses a winding or long, steel bar to wind the door's tension wheel. Some doors have dual-tension systems or may require a helper to wind the tension wheel.

• 13

  Install or adjust the manual chain hoist per the guidelines. Some doors may have optional hand cranks or electric motors. Check the door to ensure that the curtain travels freely. Attach the hood over the door and secure it with screws.