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Dimmu, Handyman
Category: Home Improvement
Satisfied Customers: 18398
Experience:  10 years as a handyman
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I have a &d control a Door 4. The lift chain is dragging a

Customer Question

I have a B&d control a Door 4. The lift chain is dragging a bit . Should I use oil or RP7?
Thanks, Fay
Submitted: 2 years ago.
Category: Home Improvement
Expert:  Dimmu replied 2 years ago.
Hello my name is***** look forward to assisting and am very sorry to hear that you are having this problem.
You are going to want to lubricate the trolly itself rather than just the chain.
Do not use oil or WD-40 if you do wipe it off right after, You would want a lubricant like this:
Follow the steps in this video:
This should help with it dragging, it should also help if it is making a lot of noise.
If this did not work, please come back and let me know what happened when you tried it by clicking on reply to expert so we can continue.
If it did work, please don’t forget to leave a positive rating - it is greatly appreciated.