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A rule of thumb with springs is that four quarter turns equals a full revolution and the spring needs to be tightened a full revolution for every foot of door height (e.g. 7-1/2 foot door = 7 revolutions +2 (30 quarter turns).
How many turns on a 8ft garage door spring?
A) The amount of turns required on your springs depends on the height of your garage door. If your door is 7ft high then we recommend starting off at 31 Quarter turns on each springs. If you have an 8ft door then start at 34 Quarter turns.
How many turns on a 8ft garage door?
If you didn’t get a recommendation, perform 30 quarter turns for a 7-ft. -tall door and 36 quarter turns for an 8-ft. -tall door.
How many turns on a garage door spring chart?
A rule of thumb with springs is that four quarter turns equals a full revolution and the spring needs to be tightened a full revolution for every foot of door height (e.g. 7-1/2 foot door = 7 revolutions +2 (30 quarter turns).
How do you measure a garage door spring?
Measure the circumference of the cable drum, and measure the height of the garage door in inches. Divide the height of the garage door by the cable drum circumference, then add one. This is the number of turns that are on your spring. For example, a 14′ high door is 168″ high.
Can I use a different size garage door spring?
When you add everything up, you have the exact weight once done; you can then use two different size springs if it yields optimal balance. If you are a homeowner and the technician used two different size springs, don’t be alarmed. What matters is that the garage door is balanced.
Can I put a bigger spring on my garage door?
If your garage door springs have lasted less than five years, or if you plan to live where you are for many years, you may want to try the extra long life torsion springs. By using larger springs, you can, in most cases, quadruple your spring life while only doubling the cost of the springs.
How do you balance a garage door?
Performing a Balance Test Close the door from the inside. Detach the garage door from the opener using the red manual release rope. Move the door open and closed manually. Then lift the door halfway and release. If it stays in one place, it is properly balanced. If it closes or snaps open, the door is off-balance.
Do torsion springs work in both directions?
Torsion springs are helical springs that exert a torque or rotary force. Depending on the application, a torsion springs can be designed to work in a clockwise or counter-clockwise rotation, thus determining the direction of the wind.
What do the colors mean on torsion springs?
The color code on a torsion spring indicates whether it is a “right wind” or “left wind” spring, with black indicating right wind and red indicating left wind. Beyond that the torsion spring is color coded so that technicians can determine the thickness, or gauge, of the wire.
How do you tell a right and left spring on a garage door?
Look at the end of the spring to determine the wind direction. If the end of the spring points in the clockwise direction it is left-wound and if the end of the spring points in the counter-clockwise direction, it is right-wound.
How do I know if my garage door springs need to be adjusted?
More Noise Than Usual. A balanced garage door should be relatively quiet when traveling up or down the door tracks. If your garage door is making excessive creaking, grinding, or squeaking noises when opening or closing, your springs may be strained and most likely need to be replaced.
How do you measure a high lift garage door?
Measure from the floor to the nearest obstruction on the ceiling (ex. 144 inches) Measure the rough opening height of your door (ex. Subtract 12 inches from that figure to account for the spring line (144-96-12=36 inches) The most high lift you can use in the example above is 36 inches or 3 feet of high lift.
How do you size a spring?
How to Measure a Compression Spring Measure the spring wire diameter, preferably to 3 decimal places for accuracy using calipers. Measure the outside diameter of the coils. Measure the length in its free condition (uncompressed). Count the number of coils. Note the winding direction of the coils.
What size garage door extension springs do I need?
For extension springs, you’ll need to know the length of the spring, the weight that it’s intended to hold and the outside diameter. It is common that most residential garage doors are either seven or eight feet tall. Seven-foot doors usually use a 25-inch spring, and eight-foot doors use a 27-inch spring.
What is the color code on garage door springs?
Garage Door Extension Spring DASMA Color Code Chart Color Pounds Kilograms Brown 60/160/260 xxx Orange 70/170/270 30/75/120 Gold 80/180/280 35/80/125 Light Blue 90/190/290 40/85/130.
How many torsion springs do I need?
As a rule of thumb, a single garage door takes one torsion spring. A double-wide garage door takes two springs. However, if you have an exceptionally heavy single door, you may need two torsion springs. It is easy to tell whether you have one or two springs.
What happens if garage door spring is too strong?
Strong Springs If your springs are too strong, and if you wind the springs the correct number of turns or adjust the cables and S-hooks correctly, the door will not stay on the floor when closed. It will usually not stay in the middle when opened halfway. However, it will stay up when opened fully.
What weight garage door springs do I need?
This is determined by the pitch with which the springs are wound. On sectional garage door springs, this normally is 15 percent. For example, a 100-pound pull spring requires 15 pounds of weight to separate the coils; when a door is open, the two springs will support 15 pounds of door weight without any stretch.
