Operation No. 2 - Regulation Of Main Brake - PRONAR T740 Manual

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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.
Bearing regulation should be performed according to the following instructions – figure (5.1):
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take off hub cover (1),
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take out split cotter pin (3) securing castellated nut (2),
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turning the wheel simultaneously tighten castellated nut until the wheel comes
to a stop,
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unscrew nut (not less than1/3 rotation) to cover the nearest thread groove with
alignment to opening in wheel stub axle
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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.
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.
Inspection and/or regulation of wheel axle bearings:
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5.2.2 OPERATION NO. 2 - REGULATION OF MAIN BRAKE

Brakes regulation is necessary when:
After a week of use
Every 6 months of use.
5.6