Hello, to anyone that needs to take this end of their reel apart. I have just worked it out.
Item 10786 has two 2.5mm shallow holes, at 180 degrees apart. Get two 2.5mm drill bits and place the shanks into the recessed hole, hold in tight and get someone to turn item 10786 the end cap, turn it anti clockwise, its a lefthand thread. Remove the 3 clips 8881, then everything comes out easily, clean and re-grease the friction washers and reassemble. I have just do this and its transformed the d-rag on my reel.