New Holland T7030 Operator's Manual page 256

Tighten all six wedge retaining bolts in increments of
68 Nm (50 ft.-lbs.) until the final torque setting is
achieved.
6 x M20 Bolts (Cast centre)
6 x M22 Bolts Steel centre)
IMPORTANT: The wedge bolts must be tightened
evenly.
Repeat the procedure on the other wheel, making
sure that both rear wheels are the same distance
from the ends of the axle shafts.
NOTE: Check the torque of all wedge retaining bolts
on each wheel hub after driving the tractor for 200 m
(200 yards), after 1 hour and 10 hours operation and
thereafter at the 50-hour service intervals.
3--138
SECTION 3 - - FIELD OPERATIONS
300Nm (221 ft.lbs.)
500Nm (369 ft.lbs)