If i had a spinfisher here i could have done some photos/walkthrough but there was an article in last months Hotbite i believe or may have been month before that had a page on spinfisher maintainence which outlined the most problems faced with the spinfisher reels and how to fix.

If your game, just open her up and take a look and you will see which bits are already greased/oiled and you should be able to see any salt/sand buildup which are easily cleaned off.
Generally speaking just a wash down after each use should be enough provided you don't submerge your reels or leave them in sand.

http://www.scottsbt.com/catalog/store/images/pennparts/manuals/omssm.pdf

Just a pdf for an outline.

As for lubricant, the daiwa combo with the Pen like lube and blue grease, good for the money and does the job.