PRONAR 663/4 SILO, Operator'S Manual, Page: 97 / 135

SECTION 5 Pronar T663/4 T663/4 SILO
5.5
Raise the wheel (opposite to the side where chocks are placed).
The lifting jack should be placed between U bolts (2) - figure (5.1)
securing axle (1) to leaf springs, or as near as possible to leaf spring
mounting. Recommended support points are marked with arrows.
Lifting jack must be suitable for the weight of trailer.
Checking wheel axle bearings for slackness:
•
after travelling the first 10,000 km,
•
after intensive use of trailer,
•
every six months use or every 25,000 km.
Checking wheel axle bearings for slackness
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.
Holding the wheel above and below, try to feel any slackness.
You may use a lever placed under the wheel supporting the other end
of the lever on the floor.
Repeat the inspection procedure on the other wheels.
If slackness is felt, adjust bearings. 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.
DANGER
Before commencing work the user must read the instructions for lifting and adhere to the
manufacturer's instructions.
The lifting jack must be stably supported by the ground and so must the axle.
Ensure that trailer shall not move during inspection of axle bearing slackness.