A friend has given me this old clock to look at. I said I could only try and see how I get on. I’ve not done a clock up to now. I’ve no idea what’s wrong with it, it will only run for a very few seconds. It looks as if someone has drenched it in oil, it is dripping off in some places. Hoping this may be the main problem. Any advice or info on these would be welcome before I set to. All 3 barrels are wound up hard. How strong are the springs, is it safe enough to use the winding key to hold and r