Thanks Grumpy. I haven't worked out how to engage the drive. The wheels are free turning, but the cylinder won't turn quite as freely. When I take off the gear cover or grease pot cover just to the rear of the drive housing, everything looks good. I found a great brochure here: http://museumvictoria.com.au/collec...r-eagle-heavy-duty-gang-mower-circa-1950 and it says something about 3 pawls on each wheel which you use to engage, but I'm buggered if I can see them. Maybe if I take a photo of the wheels or soemthing???