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GPA20 rear wheels / hubs
C . Changing wheel track spacing
Preliminary operation
1. Engage the parking brake in order to immobilise
the tractor. Thoroughly chock the front wheels.
Removing the wheel
2. Unlock the wheel nuts (1)
vant side of the tractor.
3. Remove the nuts and the wheel.
Adjustment
4. According to the wheel track required for the
flanged shaft, change the position of the rim and/or
disc:
- rim with welded disc and spacer: 4 positions
(Fig.
2)
- rim with brackets: 8 positions
Reminder
The rim spacer (2) (if fitted) can be positioned in
different ways
(Fig.
2):
- either on the outside of the rim disc,
- or for functional purposes between the shaft flange
and the disc.
5. Refit the wheel and tighten the nuts (see §B).
Tightening torques
Rim on hub: 400 - 450 Nm
Rim on disc (wheel with brackets): 180 - 250 Nm
(Fig.
3).
06H01.4
(Fig.
2) and lift the rele-
(Fig.
3).
(Fig.
2).
Massey Ferguson 5400 - Issue 1.a
Fig. 2
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