5.3
•
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, it is necessary to 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.
Bearing regulation should be performed according to the following instructions – figure
(
5.1A
):
•
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 was cotter pin and mount hub cap.
The wheel should turn smoothly without faltering or detectable resistance not originating from
abrasion of brake shoes in brake drum.
TABLE 5.1
HYDRAULIC LIFT REQUIREMENTS
PARAMETER
MEASURED
AS
VALUE
Lift capacity
kg
2 500
Height of lift ram in retracted state
mm
300
Inspection and regulation of bearings may only and exclusively be conducted, when the
trailer is hitched to a tractor and trailer load box is empty.
Bearings replacement, lubrication and repairs connected with brake system and wheel axle
should be entrusted to specialist service provider. For axle technical service, the user may
only inspect the technical condition of the axle system, inspect bearing slack and their
regulation.
Summary of Contents for T644/1
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