Hello everyone. I just purchased a house with a great 30 x 30 shop/garage. It has 2 roll up doors with a pull chain to operate. My question is on maintenance - where do I oil and/or grease it to get smooth operation and not have problems down the road? Right now they operate fairly smoothly with some effort in spots, but they squeak VERY loudly. So I'm guessing they need some lube. Any suggestions?
