My new trigger mech. showed up last night. I was concerned that it might be tricky having to deal with corroded metal & plastic with brutal force. However nothing could have been further from the truth - it was quick and easy.
The RA trigger mechanism is a suprisingly small plastic cassette. When I say plastic, this is not some flimsy packing plastic but thick, fancy fibre reinforced tough stuff.
The mech. is held in place by a single straight plastic pin behind the trigger & below the safety catch. To pop-this out use a long thin punch or long, straight 2.5mm Allen key(/wrench) and simply push with your hand using a slow, steady push -- no need for a hammer. The cassette can then be gradually manipulated out by hand - a small, flat screw driver might help get it moving.
Wash it out (there was some fine grit/sand around mine). Insert the new cassette & re-insert the plastic pin. That's really all there is to it. Had I known, I might have occasionally removed the cassette for cleaning (e.g. after particularly gritty seas).
Piece of cake
