Fixing up a Mendel90

I recently received a Mendel90 dibond with pretty much all original parts. Since everything is pretty old and fairly heavily used, what parts should I consider replacing and/or upgrading to get this thing working to the best of it's ability? I'm pretty new to 3d printing and fixing up an old machine is a bit intimidating, but I'm looking forward to the challenge. Any advice to point me in the right direction would be greatly appreciated. I'm hoping to use it for mostly ABS prints with a makeshift enclosure.

I would suggest that you download the Mendel90 manual, available here [github.com] , and go through it making sure that all of the printed parts are in good order, the fixing screws are tight and that the electrical connecrtions are all making good connections. If anything is not in good condition then replace it. You will need to level the bed, set the Z-axis home height and e-steps in the software, instructions are in the Manual, and then try a test print.

Best of luck
Richard