PRONAR RC3100 Operator's Manual page 123

Maintenance
6.4 ADJUSTMENT OF AXLE BEARING SLACKNESS
Figure 6.5 Bearing
principle
(1) cap (2) cotter pin
(3) nut (4) cone bearing
2
1
3
4 4
526-I.16-1
slackness adjustment
• Dismantle hub cover (1).
• Take out cotter pin (2) securing cas-
tellated nut (3)
• Tighten castellated nut in order to
eliminate looseness.
Wheel should rotate with insig-
nificant resistance.
• Undo nut (3) (not less than 1/3 ro-
tation) to align the nearest thread
groove with the opening in wheel axle
pin (cotter pin opening is indicated
by black arrow in the figure). Wheel
should rotate
resistance.
The nut must not be excessively
tightened. Otherwise, operating
conditions of the bearings will
deteriorate.
• Secure castellated nut with cotter pin
and mount the hub cap (1).
• Delicately tap hub cap with rubber or
wooden hammer.
ATTENTION
Adjustment of bearing slackness may only be con-
ducted when the trailer (without load) is hitched to
the tractor.
PRONAR RC3100
Section 6
without excessive
J.3.1.526.03.1.EN
6.7