The main drive gear is the plastic gear that comes in direct contact with the worm drive gear on the motor.
Garage door track issue.
One of the more difficult problems for do it yourselfers to diagnose is a worn cable pulley on an extension spring door.
The metal track your door runs on needs to be aligned properly in order for your door to move.
Replace the main gear drive if the garage door opener makes a grinding noise but the door doesn t move your main drive gear is probably toast.
Garage door openers offer convenience and security for our vehicles and our homes.
A loose track could allow the door to fall.
On a positive note it is not that hard to fix.
However like any mechanical product issues are bound to arise and years of use can take their toll.
Garage door opener won t open all the way fix.
If your garage door track is out of alignment it can be a serious issue.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
While many problems that keep the door from opening are caused by broken springs a lot of other parts could be keeping your door from functioning properly.
This could be a serious problem.
If you have.
If you see gaps between the rollers and rail or bends in the rails themselves you have a problem.