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Chapter 6
6.3 ADJUSTING THE CELARANCE OF THE AXLE BEARINGS
• Remove the hub cover (1).
• Remove the cotter pin (2) securing
the castellated nut (3).
• Tighten the castellated nut to remove
slack.
The wheel should rotate with
slight resistance.
• Unscrew the nut (3) (not less than 1/3
of a turn) to cover the nearest groove
of the nut with a hole in the journal
of the axle (the pin's hole is marked
with a black arrow in the drawing).
The wheel should rotate without ex-
cessive resistance.
The wheel should rotate without
excessive resistance. Too much
pressure is not recommended
due to deterioration of bearing
operating conditions.
• Secure the castellated nut with
a cotter pin and mount the hub cover
(1).
• Gently tap the hub with a rubber or
wooden hammer.
PRONAR T672ECO
6.4
Figure 6.3 The
clearance adjustment
1) hubcap (2) cotter pin
(3) nut (4) tapered roller bearing
CAUTION
Adjustment of bearing looseness may be performed
only when the trailer (without load) is connected to
the tractor.
Technical Support
4
4
526-I.16-1
principle
of
bearing
J.3.4.622.04.1.EN
2
1
3
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