Wayne Dalton Prodrive 3220C Instrucciones De Instalación Y Manual Del Propietario página 8

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Positioning and Installing Reinforce with 2" x 6" as required to
insure rigid mounting.
Front Wall Bracket
NOTE: It is recommended that the door
Tools Needed:
opener be installed 7 feet or more above the
garage floor.
Carpenter's Level
REINFORCE THE HEADER WALL
7/16" Socket
Reinforce the header wall (wall above door
Driver
opening) as required, to ensure rigid
mounting of the front wall bracket.
Power Drill
Vertical Center Line
WARNING
Tape Measure
DO NOT ATTEMPT TO LOOSEN OR
1/8" Drill Bit
REMOVE ANY PORTION OF DOOR SPRING
SYSTEM IN ORDER TO REINFORCE
Header Carpenter's Level
HEADER WALL OR TO MOUNT WALL
BRACKET. SPRING SYSTEM IS UNDER
EXTREME TENSION AND CAN CAUSE
SEVERE OR FATAL INJURY. SUCH WORK
SHOULD BE DONE BY A QUALIFIED
High Arc Point
SERVICE PERSON.
Top Section
Locate the vertical center line of the garage
door and mark it on the header above the
door.
Sectional Door
Curved Track
Raise the door slightly until the top section
reaches the highest point of travel (High Arc
1/4" X 1 1/2"
Point); using a carpenter's level, transfer
Lag Screws
and mark the highest point of travel onto the
header wall and close the door.
1/2" - 1" Above
High Arc Mark
Mount the front wall bracket with its lower
Front Wall
edge approximately 1/2" -1" above the
Bracket
mark showing the highest point of travel and
centered on the vertical center line.
NOTE: For low headroom torsion
Center of
counterbalance, hold the wall bracket's
High Arc
Door
bottom edge typically at 1/2" - 1" (room Mark
permitting) above the torsion spring center
1/2" - 1" Above
bracket and centered on the vertical line, see
Center Bracket
illustration.
Front Wall
(Room Permitting)
Bracket
Top Edge Of
Mark the two mounting holes and pilot drill
Torsion Spring
Center Bracket
with a 1/8" drill bit. Mount wall bracket using
the 1/4" x 1-1/2" lag screws supplied to
ensure rigid mounting.
Center Bracket
Center Line
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