Yes, that front element is easy to remove. But underneath that element is a second element that must be unscrewed, also, And that is a bit harder because there is no spanner wrench slots to turn that disk with. I usually drill tiny holes into that metal disk and then unscrew it. Doing that, you will finally expose the shutter and aperture blades. The rear lens elements (two) are also removable and doing that is probably the most sensible thing because drying will be far quicker and you get to clean those elements' innards.
But, watch out and be careful: I honestly do not know if you are doing the right thing here. Certainly, the Ronsonol will dluite that grease but, WATCH OUT: that fluid will also travel down onto the helicoid and that means trouble because that helicoid (which determines focus) is full of grease and you do not want ANY grease coming to touch those aperture blades (which are guided by a very delicate wire spring. All I can say is 'only a few drops' onto those shutter blades and let it dry thoroughly (after firing a few times to get it worked in) before replacing the two front lens elements and rear elements.
NB: to remove the ENTIRE lens/shutter assembly in the GIII 17 one has to use a spanner wrench on the large disk surrounding the REAR lens set. IMPORTANT: to loosen this large disk one has to turn that large disk CLOCKWISE which is counter to what is usual. After many turns, the lens/shutter assembly will be able to be removed, BUT...the wires are so closely tied to that assembly that you will not be able to remove it more than about one inch. THAT means that you cannot work on that assembly unless you cut those wires (or use amazing dexterity to cut, then resolder those damn wires).
ALL smaller screws and disks turn normally to loosen (ie, turn counter clockwise to loosen).
If you have questions, contact me either PM or 215.569.4949 - David Lyga
Last edited by David Lyga; 01-24-2014 at 05:49 PM. Click to view previous post history.