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344940 REV2 03/17/2020
©
Copyright 2020 Wayne Dalton, a division of Overhead Door Corporation
20
Install the chain from the slotted sprocket to the idler sprocket, and if crank operated, install the chain from the drive sprocket on the awning crank to the door sprocket.
Adjust each chain so that there is 1/4” to 1/2” of
slack as shown for proper operation and automatic
closure functionality. The idler sprocket and chain
tension is adjustable by loosening the mounting
bolts on the opposite side. (If the idler sprocket
location is adjusted, the centrifugal clutch chain
tension will also require adjustment). Re-tighten all
bolts & nuts.
Now, the push-down spring (connected to the 3/4” diameter shaft) must be wound. The shutter must be in the
CLOSED
position. Install the test handle, fusible links, turn-
buckles and cable and attach to the release lever (per Step 11). Rotate the release lever upwards and secure it so that the ratchet tooth engages the tension wheel
NO CHAIN OR CRANK
FOR LIFT-UP DOOR
CHAIN INSTALLATION FOR LIFTUP AND CRANK DOORS
INSTALL CHAIN
IDLER SPROCKET
IDLER SPROCKET
MOUNTING BOLTS
CENTRIFUGAL CLUTCH MOUNTING BOLTS
STOPS ON CLUTCH DISKS (MUST BE ORIENTED AS SHOWN)
NUT (FACTORY INSTALLED ON SLOTTED SPROCKET)
ROTATE THE SLOTTED SPROCKET COUNTERCLOCKWISE
(LOOKING AT END OF OPERATOR BRACKET)
UNTIL ALL THE NUTS ON THE TWO SPROCKETS
AND CLUTCH DISKS ARE IN CONTACT.
SLOTTED SPROCKET
NUT (FACTORY
INSTALLED
ON SPROCKET)
LEFT HAND OPERATED
BRACKET SHOWN
CUT AWAY
WARNING
EXERCISE CAUTION WHEN APPLYING, ADJUSTING, AND SECURING SPRING TENSION. CONTACT WITH RAPIDLY ROTATING TENSION WHEEL OR EXPELLED WRENCH CAN
CAUSE SERIOUS INJURY OR DEATH.
WARNING
ACTIVATING THE TEST HANDLE WILL RELEASE SPRING FORCES, CAUSING THESE PARTS TO SPIN RAPIDLY AND CAN POTENTIALLY CAUSE SEVERE INJURY TO ANY PERSON
IN CONTACT. ENSURE RELEASE LEVER AND TEST HANDLE ARE IN THE LOCKED POSITION AND SECURED BEFORE AND DURING THE TIME YOU PERFORM THIS STEP.