If there is a next time I'd reverse the jaws of a sash cramp to force the
tubes apart, the 2 inches or so to release the cross tie tube. I wonder if
the chassis of those disability/mobility scooters are built the same way.

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/