PRONAR NV161/1, Operator'S Manual

Page: 90 / 132

Pronar NV161/1
│
NV161/2
│
NV161/3
│
NV161/4
│
NV161/5 SECTION 5
5.6
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
on the floor.
Repeat the procedure for each wheel individually, remembering that the jack
must be on the side opposite to the chocks.
Checking wheel axle bearings for slackness:
•
after travelling the first 500 km,
•
after travelling next 1 500 – 2 000 km,
•
before intensive use of manure spreader,
If slackness is felt, adjust bearings. Unusual sounds coming from bearing may be the
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.
TIP
If hub cover is damaged or missing, contamination and dampness enter the hub, which
causes significantly faster wear of bearing and hub seals.
Bearing life is dependent on working conditions of manure spreader, loading, speed of
travel and lubrication conditions.
Check condition of hub cover, if necessary replace it with a new cover. Inspection of bearing
slackness may only be conducted when the manure spreader is hitched to a tractor and the
load box is empty.