Kubota T1880 Operator's Manual page 23

8 MOWER MOUNTING
7. Loosen the nuts.
Adjust the link, lift link and lift rod length so that the
difference between measurements (Left) and (Right)
is less than 3 mm (1/8 in.).
(1) Link
(2) Nut
(1) Lift link
(2) Lift rod
(3) Nut
8. Adjust the blade height so that the rear blade is 5 mm
(0.2 in.) higher than the front blade.
A Make sure the rear blade is higher than the front
blade; otherwise beautiful finish cut can't be
obtained.
9. Tighten the nuts.
(A) Front
(B) Rear