water tractor help
 

Hi.
I recently picked up a "Pope Water Tractor" at a car boot sale it works a
treat but as any one familier with this machine will know part of the
system is a device for turning the machine off at the end of its run.
This part was missing so I am interested in details of this part in the
hope that I may be able to make one.

Can any one help, the model can be viewed here

http://www.javelinwater.co.uk/html/C...er_tractoc.htm

Thanks

Chris Selwyn-Smith