Husqvarna 445 oiler replacement 

Excellent video; it gives me the reassurance I need to attempt it myself. My Husqvarna is a model 445 as well, so this video is spot on for my situation. My oiler quick working and I realized it when the chain would no longer rotate on the bar because it had frozen on due to a lack of lubrication. I bought a new bar and chain and used it for a short time when I realized that the oiler was not working (I thought I had just run out of oil the first time around). I will take it apart to see if I need a new oiler pump or I just need to clean out the worm gear. Thanks again!

Just like the other commenter, I noticed my oiler doesn't seem to be working. I bought my 445 used, it ran fine for a tank of gas. With the second tank, I noticed the chain bogging, the clutch assembly overheating, and excessive chain tension. Tried loosening the chain and it popped off. Tried putting it back together and the bar is squeezed too tight so I have to open the groove with a screwdriver. But I noticed it all seems too dry. Tried cleaning the oiler outlet but I don't think that's enough. I have a new chain ready to go since I want to upgrade to full chisel but I'll examine the oiler mechanism and replace if needed before I try using it again. Seems as though oiler issues might be a thing with these chainsaws. Or the previous owner noticed the problem and that's why I got it for $150. I probably should have been suspicious that the oil tank is completely full and I haven't had to add any oil! How dumb is that?