Hi all,
My first post here and also my first stab at the Lego Technics range again after almost 25 years! I too had this issue with the non-engagement of the switch and initially thought I had built it incorrectly! But after reading this post, at least I know I'm not alone! Can anyone here provde the part reference to the older grey pin replacement that has been suggested?
I've now ordered all the parts for the "Ultimate 8043" build and have received all the bits except for the rechargeable battery box which is on back order with Lego. I now intend to change the blue pin to the grey one (after I get it), have a go with that and probably break it down to build the "B" model while waiting on the back-ordered battery box.