SOURCE: Ryobi 18 Volt Cordless Chainsaw needs chain oil?...
you can use a reg bar oil or a lightweight motor oil
SOURCE: Ryobi electric chainsaw manual
Ryobi.com
http://www.gardnerinc.com/recons/disclaimer-lg.php
Lou
SOURCE: what size file do i use for a Ryobi chainsaw model pcn4545
The standard chain file should fit it. It is about 3/16 dia. I found the dremel to work 10 times better, they have a little stone bit just for chains. Eventually, you have to take it in for sharpening, it will set all the teeth the same.
SOURCE: ryobi 4450c clogged oil passage
HI There I have the same problem with the same chainsaw. I have stripped mine down and it's fairly simple to gain access to the oil pump. Mine has turned out to be the worm gear that turns the pump and possibly the pump. I am going to replace both but can't find a supplier for the pump and worm gear, if anyone can help me with a supplier that would be great. As for stripping out the pump you have to remove the gear wheel to do this you have to remove the spark plug and insert a tool to stop the engine turning while you tap the gear wheel off. there should be an arrow on the gear wheel but it will be a left hand thread. once this is off thereare a couple of collars around the shaft that will slide off then there is a couple of screws to take a plastic plate off this has to come next. once this is off there is the worm that is like a washer that sits on the shaft and rotates and has a thread on the underside that turns the pump. then there are two screws holding the pump in. Hope this helps.
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