PRONAR T130, Operator'S Manual

Page: 68 / 90

5.4
•
Grasp wheel above and below and try to feel any slack play, this may equally
be checked with the aid of a jack placed under the wheel supported on the
floor/ground.
If slack is felt, adjust bearing. Unusual sounds coming from bearing may be symptoms of
excess wear, dirt or damage. In such an event the bearing, together with sealing ring, should
be replaced with new parts.
FIG. 5.2A Adjustment of road wheel axle bearings
(1) hub cover, (2) castellated nut, (3) securing split cotter pin
Bearing adjustment should be performed according to the following instructions – figure
( 5.2A ):
•
take off hub cover (1),
•
take out split cotter pin (3) securing castellated nut (2)
•
turning the wheel simultaneously tighten castellated nut until the wheel comes
to a stop.
•
Unscrew nut (not less than1/3 rotation) to cover the nearest thread groove with
alignment to opening in wheel stub axle.
•
secure castellated nut with cotter pin and mount hub cap.