Farmtrac 555dt timing angle and valve clearance

[zyznos321]

Can somene tell me which timing angle should I set for this tractor (24, 25 or 26 degree)?
What valve clearance should be in this "ford" motor?
Have someone workshop service manual for farmtrac 555dt?

 

[zyznos321]

I have this.

- inlet valve: 0,36  0,46 mm,
- exhaust valve: 0,43  0,53 mm,