Questions & Answers for: chamberlain liftmaster tighten chain

...tighten the outer nut on the trolley to increase tension. The outer nut on the trolley is closest to the garage door. The chain tension should be 1/2 inch off the rail at midspan. (The chain is ...

how do I adjust the chain on Chamberlin 1/3hp The chain adjustment is on the trolley. Don't over tighten. Some slack is necessary.

...tighten the chain The adjustment for the chain is on the trolley. That is the part the chain and the door are connected to. Your chain is sagging entirely too much. Have you done any other work to ...

...go back and forth on track. if this is a chain drive,is the chain so loose that the chain is jumping on the sprocket? this would cause a lot of noise. if this is the problem just tighten the

...Chamberlain Lift Master Pro Formula 1 garage door opener stopped working suddenly. When you try to activate it the unit makes a click noise but nothing else happens (no light, no motor noise). Is the ...

tighten the chain on a liftmaster There are adjusting nuts on the trolley. The chain should have a little slack. Do not overtighten. One side will always hang a little lower than the other. The lowest

...tighten sagging garage door chain? The chain on my liftmaster garage door opener is sagging. When I press the button to open or close the door, it just hums. How do I tighten the chain? I think you ...

the other. When it is closing it will be just the opposite. It is important that you do not over tighten the chain. I suppose the wrong chain could be shipped with the opener but it wouldn't be common

...too loose. how tight should it be? Chain should be approximately 1/4 inch above the bottom of the rail. If you over tighten the chain will make a clicking noise when the opener runs. This is not

garage door opener. i need to tighten the chain, can anyone tell me how this is done? The adjustment for the chain is done at the back side of the trolley. A 1/2 inch open end wrench will do the trick