Hi Rodger

Yes the 5758 is attached by two screws to the factory baseboard. So you need to take the second board off the original so as to get to the screw heads.
Re-aasembleing is always a fiddle as the baseboard has to align with the holes on the underside of the loco. Small screw drivers are used with the up turned loco and baseboard to align everything . Take the screw drivers out when aligned and then put the screws in.

Lovely set of crocodiles.

David

Get a silver marker pen and mark alignment marks on the baseboard of the location of all the loco's axles before you remove it off the baseboard. Makes reattaching the baseboard so much easier - I have done this with all my G1 locos. I also mark 'F' for the front and 'R' for the rear of the loco.

The other way of mounting a loco on a baseboard is to lay the baseboard on a flat surface. Line the loco up with the alignment marks, put any spacers in and thread the bolts through the holes and spacers. Run one end of the baseboard over the edge of the flat surface (table or whatever) up to where the first bolt hole is and lining everything up screw the bolt home finger tight only. Repeat for the other end then repeat for any intermediate bolts. Make sure you hold on to the baseboard and everything else and make sure no Heffalumps come charging past knocking you and everything to pieces while you are doing this.

When done tighten the bolts up with a screwdriver again moving the baseboard over the flat surface edge - I recommend no more than quarter of a turn past finger tight otherwise you run the risk of warping the loco's chassis. Make sure all wheels are inside the cut grooves, as you don't want a wheel at a different level to all the others when you tighten bolts up, doing that will surely warp the chassis.




Carefully!

Check the loco's manual, I don't think 5758 has electric piezzo motors to raise the pantographs, which brings with a whole set of instructions.

The pantographs will have a clip holding them down, often one on each side. You need to carefully get the clip released from the bottom rail of the pantograph so that the pantograph can freely move.