PRONAR RC2100, Translation Of The Original Copy Of The Manual

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SECTION 5 Pronar RC2100
5.5
CHECK WHEEL AXLE BEARINGS LOOSENESS
Turning the wheel slowly in both directions check that movement is smooth
and that the wheel rotates without excessive resistance.
Turn the wheel so that it rotates very quickly, check that the bearing does not
make any unusual sounds.
Turning the wheel try to detect looseness.
You may use a lever placed under the wheel supporting the other end
on the floor.
Repeat procedure to each wheel individually, remembering that the jack must
be on the side opposite to the chocks.
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, or cleaned and greased again During inspection of bearings
ensure that possibly detected looseness comes from the bearing and not from the
suspension system
TIP
Damaged hub cover or lack of hub cover causes penetration of contamination and
dampness to hub, which causes significantly faster wear of bearing and hub seals.
Bearing life is dependent on working conditions of trailer, loading, speed of travel and
lubrication conditions.
Check condition of hub cover, if necessary replace with new cover. Inspection of bearing
slackness may only be conducted when the trailer is hitched to tractor and the load platform
is empty.
Check wheel axle bearings for slackness:
•
after passing the first 1,000 km,
•
after intensive use of trailer,
•
every six months use or every 25 000 km.