Technical Specifications

9
USE TWO OR MORE HELPERS TO ASSIST
YOU IN LOWERING THE DOOR. SOME
LARGE DOORS MIGHT WEIGH AS MUCH AS
500 POUNDS WHEN THE SPRING TENSION
IS REMOVED. THE WEIGHT OF THE DOOR WILL NOT BE APPARENT
WHEN YOU FIRST BEGIN TO CLOSE THE DOOR. THE DOOR WILL FEEL
PROGRESSIVELY HEAVIER AS IT IS LOWERED UNTIL ITS FULL WEIGHT
IS REALIZED ABOUT ONE FOOT FROM THE FLOOR. TO AVOID INJURY,
KEEP HANDS AND FINGERS CLEAR OF SECTION JOINTS, TRACK AND
OTHER DOOR PARTS WHILE THE DOOR IS CLOSING.
STEP 5: Proceed to weigh the door.
SPRING REMOVAL EXTENSION SPRINGS
EXTENSION SPRINGS CAN BE VERY DANGEROUS AND MAY CAUSE SERIOUS INJURY OR DEATH IF THEY
ARE IMPROPERLY INSTALLED OR MISHANDLED. DO NOT ATTEMPT TO REMOVE THEM YOURSELF UNLESS
1) YOU HAVE THE PROPER TOOLS AND REASONABLE MECHANICAL APTITUDE OR EXPERIENCE AND 2)
YOU FOLLOW THESE INSTRUCTIONS VERY CAREFULLY. SERIOUS INJURY COULD RESULT IF SPRING
TENSION HAS NOT BEEN RELEASED BEFORE OTHER WORK BEGINS.
WARNING
EXTENSION SPRING
HOW TO REMOVE TENSION FROM REMAINING SPRINGS IN ORDER TO WEIGH DOOR
If the door has two extension springs and only one is broken, always replace both springs. Replacement spring(s) must be
identical to each other.
TOOLS NEEDED: (Qty. 2) C-clamps or locking pliers
STEP 1: Disconnect the garage door opener; carefully raise the door to fully
open position. Place C-clamps or locking pliers on both sides of the track
below the bottom rollers to keep door from falling closed (Illus. 1).
STEP 2: With the door in the fully open position the tension will be removed
from the springs and the lift cable can be removed from the garage door
bottom bracket button (Illus. 2). If your door is equipped with a safety
containment cable, this also must be removed at this time from the track
assembly (Illus. 3).
STEP 3: Wood blocks should be placed under the door before closing to
prevent finger from being trapped.
STEP 4: Remove the C-clamps from the track and carefully close the door.
Illus. 1
Illus. 2
Illus. 3
WARNING