zetor crystal 8011 brake problem

hi zetor world readers , i have recently bought a 1979 crstal 8011 with no brakes , upon closer inspection it turned out that both brake lines from the master cylinders were shot so i replaced them only to find out the main master cylinders themselves were also shot so i replaced them as well , now there were two new wheel cylinders fitted to the the tractor when i got it and she does have a fairly good handbrake but after replacing all the pipework and two new master cylinders and bleeding the brakes fully i now have a great hard pedal but alas no brakes of any kind , any suggestions guys ???

If you could bleed it OK at the slave cylinders then it shouldn't be the master cylinders or pipework at fault. If the handbrake works then its probably not internal so that only leaves the slave cylinders. So try adjusting up the brake rod bolt that comes out of the axle while slackening the barrel bolt on the handbrake rod .