Maintenance and Adjustment
84
410/420/430 - 001 8903 U1
UZEL
Rear track adjustment - pressed steel
wheels
WARNING: When changing, repairing
or transferring wheels observe the
following precautions:
*Use a jack that has adequate capacity to lift your
tractor and is in good repair.
*Ensure that both the tractor and jack are on firm
level ground.
*Use axle stands or other suitable blocking to
support the tractor at all times when changing
wheels and tires.
*Never use concrete blocks, bricks or old rotted
timbers for support. They can collapse - even under
light loads.
*DO NOT put any part of your body under the
tractor or start the engine while the tractor is on
the jack.
*Tractor wheels are heavy, handle with care and
ensure, when stored, that they cannot topple and
cause injury.
*Where tires with liquid ballast are used, a crane
may be required to maneuver the wheels, due to
their considerable weight.
The different track widths are obtained by altering
the position of the rim in relation to the disc, or by
reversing the wheels and transferring them from one
side of the tractor to the other (Fig. 127).
Adjustment is as follows:
1. Select the required track settings
2. Slightly slacken either the wheel to axle, or the rim
to disc nuts, or both according to requirements.
3. Using a jack capable of lifting 1500 kg (3300 lb)
raise the rear wheels just clear of the ground.
NOTE: If the wheels are reversed, they must be
transferred to the opposite side of the tractor so as
to maintain the correct tire tread direction.
4. Remove the rim from the disc or the complete
wheel, or both and assemble them with the rim and
disc in their new positions.
Disc to Axle Hub - 325 Nm (240 lbf ft).
Rim to Disc - 240 Nm (177 lbf ft).
IMPORTANT: Recheck the wheel nut and rim bolt
torques after 10 hours (or 2 hours if on loader work)
and then recheck, and if necessary, re-tighten twice
more at ten-hourly intervals. This protects against
the loosening that occurs from assemblies settling.
Track settings below 1328 mm (52 in) may not be
obtainable due to insufficient clearance between
wheel and inside of fender. Minimum track setting
cannot be obtained on tractors fitted with wide tires.
1223
1434
1333
(default)
1545
1630
1841
1741
1951
1288
(default)
1201
1376
1394
1564
1607
1776
1694
1882
1413
1309
(default)
1520
1501
1830
1726
1938
W11X28
WHEEL
W12X24
WHEEL
W11X28
WHEEL
Fig.127
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