More front weight, higher tyre pressure.

[LesLock]

I read somewhere that for each front weight attached to the tractor there should be an increase of 3psi in the front tyre pressures. This applies for up to 3 weights at least. Can anyone confirm that please and possible tell me where it is stipulated?

[Billy26F5]

Don't know what manual you're looking at, the NP instruction book is on the FFCN and has different information (there's a Super Major one somewhere too with similar information). With pressed wheels the std pressure assumes wheel weights are fitted. To add extra weight to 7.50-16 tyres requires no extra pressure, but 6.00-19 tyres need 28 psi if an extra 100-200lbs is added, with the pressure going up to 32 psi for 200-300lbs extra weight. I recommend visual checks too as if you add lots more weight there's no Ford spec (Ford limited it to 300lbs), comparing it with the normal setup at std pressure.
Sandy