PRONAR T669XL, Руководство оператора, Страница: 92 / 135

Pronar T669XL, Pronar T700XL SECTION 5
5.6
The lifting jack should be placed under the absorber plate (3) fixing the
axle (1) to the suspension spring (2) - figure (5.2). Recommended
support point is marked with an arrow. Lifting jack must be suitable for
the weight of trailer.
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.
Moving the wheel try to detect
slackness.
You may use a lever placed
under the wheel supporting the
other end of the lever on the
floor.
Repeat the procedure for each
wheel individually, remembering
that the jack must be on the side
opposite to the chocks.
.
FIGURE 5.3 Checking bearings for
slackness
If slackness is felt, adjust bearings. Unusual sounds coming from bearing may be symptoms
of excessive 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 slackness comes from the bearing and not from the
suspension system (e.g. slackness of leaf spring pins etc.).