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Testing and Maintaining the Garage Door Opener

There are routine safety and maintenance steps that should be performed at least once a month. Review your owner’s manual for the door opener. If you do not have an owner’s manual, look for the door opener model number on the back of the power unit and request a manual from the manufacturer or alternatively contact us and we will do our best to provide one for you.

Remember routine maintenance can prevent tragedies and also ensure your complete garage door system maintains an efficient and effective operation.

Make monthly inspection and testing a part of your regular routine. Safety is everyone’s responsibility.


Garage Door Opener

  • Reversal Test

Make sure your opener has a reversing feature. If a reversing feature is not present it should be replaced with an opener with this important feature. Test the reversing feature every month.

  1. First, test the balance of the door (see bottom of page). If the door is properly balanced, then proceed.
  2. With the door fully open, place a 1½” thick piece of wood (a 2”x4” laid flat) on the floor in the centre of the door.
  3. Push the transmitter or wall button to close the door. The door should reverse when it strikes the wood.
  4. If the door does not reverse, have a qualified individual check the operation and make any necessary adjustments or repairs.
  • Force Setting Test

Test the force setting of your garage door opener by holding the bottom of the door as it closes. If the door does not reverse readily, the force may be excessive and need adjusting. See your owner’s manual for details on how to make the adjustment. Test the reversing feature after any adjustment.

  • Additional Safety Devices

Many garage door openers can be equipped with additional safety devices. Consider adding a photo electric beam or edge sensor as an extra measure of safety to prevent against entrapment. Keep in mind that adding more safety devices will not make an old opener meet the current standards.

Make sure the additional safety devices, such as photo electric beams or edge sensors, are properly installed and adjusted (see owner's manual).

Garage Door

  • Visual Inspection- Springs, Rollers, Pulleys, Cables and Track

Look at the garage door springs, cables, brackets, and other door hardware for signs of wear. If you suspect problems, have a qualified professional make the necessary repairs.

Garage door springs, cables, brackets, and other hardware attached to the springs, are under very high tension and, if handled improperly, can cause serious injury. Only a qualified professional or a mechanically experienced person carefully following the manufacturer’s instructions should adjust them. A professional should only adjust the torsion springs above the door. Do not attempt to repair or adjust the torsion springs yourself.

A restraining cable or other device should be installed on the extension spring (the spring along the side of the door) to help contain the spring if it breaks.

Never remove, adjust or loosen the screw on the bottom brackets of the door. These brackets are connected to the spring by the lift cable and are under extreme tension.  

  • Lubrication

Regularly lubricate the moving parts of the door. However, do not lubricate plastic parts such as plastic rollers and plastic idler bearings. Use white grease (Low temperature grease) on the opener rail. KAJ Installations & Services recommends the Auto Drive chain be lubricated at least once a year to ensure maximum working efficiency. There are many varieties of penetrating sprays available on the market for the overall lubrication of all moving parts however we personally use and recommend Inox MX3 Formula. Inox will not harm metal points, surfaces, plastics, paints, enamels or finishes, fibreglass, formica or neoprene seals. It does not dry out, gum up, become gooey or sticky or wash off with water.Inox is non-conductive, non-static, non-corrosive, non-staining and non-toxic.

  • Door Balance

Periodically test the balance of your door.

  1. Start with the door closed.
  2. If you have a garage door opener, use the release mechanism so you can operate the door by hand when doing this test.
  3. You should be able to lift the door smoothly and with little resistance. It should stay open around three or four feet above the floor. If it does not, it is out of adjustment. Have it adjusted by a qualified service person.

KAJ Installations & Services guarantees your garage door for 24 months against faulty materials, workmanship and installation. However, please note:


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