Undo the 2 bolts that hold the chain bar plate in place on the right hand side of the saw and remove the plate. The chain bar complete with chain can then be lifted clear. Clean everything up, and take note of the screw mechanism that retensions the chain bar when you put the new one back on.
John
July 2009
I can answer this question...
How do I change the chain on a McCulloch MAC 120 chain saw?