Join Date: Mar 2014
Location: South Australia
Mentioned: 0 Post(s)
Quoted: 130 Post(s)
Ford 7700 Steering orbital
I have a Ford 7700 tractor that was leaking from the steering orbital. I fitted a new shaft seal and brass ring to the input shaft, and a new cylindrical rubber sleeve to the rotor end. One of the o-rings was not supplied and didn't exist in my o-ring kit, but it looked okay and so I re-used the old one with a tiny smear of gasket silicone. Shaft was rather worn, but there wasn't much I could do about that.
I refitted it to the tractor, and the leak is fixed. However, the steering wheel is now slightly stiffer than it was before. Steering effort is the same in both directions. The hoses were marked before removal and are connected to the same ports. I've used it enough now to think that all the air should be out of the system. I didn't remove the torsion bar and so the setting of that shouldn't have been upset.
It's usable as it is, but it's just not quite how it should be.