Garage door speed changes randomly

[Garagedoorguy]

Originally Posted by fishingcacher

I have an overhead door opener that came with the house when it was new. It is over 30 years old now. I have replaced the drive belt a couple of times and the cable once. The plastic limits switches design is on it's last leg but it has lifted a very heavy door 16X7 door so I can't complain.

Overhead door was a good product back in the day but as all else they are now built as cheap as possible. Sad the quality anf craftsmanship of things nowdays.

[WoundedMinnow]

I worked as a garage door tech for 2 years during college. Genie door openers are not the best but inconsistencies in opening speed with any opener can be attributed to changes in the function of the door. Weather has a lot to do with the function of the door. The following is a step by step process of preventive maintenance for garage doors and openers 1)unlatch the door from the opener and shoot some lubricant on the screw shaft while running it. 2.) Manually raise and lower door to ensure it goes up and down on its own. 3) Spray lubricant on all hinges, roller bearing wells, torsion springs, and rails. 4) Make opener safety eyes are aligned. 5) Hook opener back up and run with door. 6) Check opener pushing pressure going down by holding pressure up against door. 7) Check pulling pressure by placing pressure down while door is going up. 8) Adjust pressure of opener using settings on side of motor. Any questions PM me.