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Something which I have learned whilst converting my HGM Fruit Deuce from old to new 10p's last night, and it's something that I feel is common on all Coin Controls (Possibly other S10 based mec's too, like from Coin Mec INC, etc) S10 based mech's. There is the counterweight arm and also it's neighbouring locking arm, at the top entry of the mech, and for quite some time I have been having 10p token acceptance issues, and found that the two pins which these arms are mounted on, was actually bent quite badly (No idea how they came to be!), and I discovered this, when I was messing about with the old 10p mech, with a view of converting it to token use and was giving it a full clean whilst stripped down (The main counterweight arm needed to be swapped over, due to differing weights). Pic here of one of the new 10p mech's Phil sent over to me, side by side with the old 10p mech, and you will note on the new 10p mech, the locking arm is not present (Something which seams common when converting to new coinage it seams), but you can clearly see on the new mech, the two posts this counterweight / locking arm assembly sits on, and it's these two posts which seam to give rise to coins which jam at the top of the mech. Way I cured the token problem, was to take both of these arms off (There is a very tiny circlip holding on, be careful NOT to loose these!), clean the area (I used Silvo, but standard polish will work just as well), straiten VERY CAREFULLY with a pair of thin nose pliers (Bend the posts too much, you run the risk of snapping them), and very lightly grease the posts (I've got some Lithium bearing grease I used on a BFM gear box which was good enough), re-assemble and calibrate the rest of the mech as needed. Needless to say, the token mech that was running at about 40% acceptance, is now working at over 99%, so can safley assume it worked and a job well done