SAWZ
ArboristSite Lurker
I searched the threads and could not come up with this information. I have a JD CS 62 Rebadged Efco 62 saw,been told it is also an Olympk 962. It came with an 18" .325 .50 gauge bar and chain with what appears to be a small splined .325 7 tooth rim/drum. It seems the .325 chain is at it's recommended limit at a 62cc saw and this original set up doesn't seem to take advandage to this saw's 4+ HP. I wanted to switch to 3/8 chain but I was told you would have to replace the oil drive gear to change over to a regular sized 3/8 rim&drum. I wanted to go with the standard rim/drum so I could run the same rims I run on my Stihl 460's. Oregon's fit chart only lists 7 tooth rim .325 gauge. I believe the Olympk and Efco 62cc versions come with 3/8 chain. Any help appreciated.