Zetor Major 80, Operator'S Manual, Page: 92 / 157

92
WHEEL TRACK CHANGE
C509
REAR WHEEL TRACK CHANGE
Used tires Tire width
in mm
Adjustable
wheel track
16.9-30 429 1437 - 1812
480/70R30 479 1512 - 1812
The standard factory wheel track is set to
1512 mm.
The wheel track setting of rear wheels is
done by the change of rim position and
disc with a heave rear part of a tractor. It
is necessary for wheels to spin freely.
Before heaving do not forget to
lock the tractor against
movement by making front
wheels stable!
After the change of wheel track, tighten all the screws connecting the disc with a rim
by a torque of 270 - 300 Nm and nuts of screws connecting a disc with wheel shaft
with a torque of 230 - 245 Nm.
−
Tighten the screws to a prescribed value after every release of foot joint.
−
After travelling a distance of 100 m with an unloaded tractor retighten the joints
again to a prescribed torque.
−
After loading the tractor, tighten the joints after 3 Mh.
−
Retest the tightening of disc nuts and foots of wheel rims after 10 Mh.
−
Until you travel first 100 Mh, check the disc nuts and foot of front and rear wheels
tightening often (at least 6 times in the first 100 Mh).
−
Continue retesting the disc nuts and foot rims of front and rear wheels tightening
always after working every 100 Mh.