Great Plains P12720 - Manual (Page 33)

33 X-Press
Operating Instructions
5. Servicing and Maintenance
5.3.1 Bearing Seals
It is important when replacing the labyrinth
type bearing seals in X-Press disc hubs that
the seal is fitted the right way round. The
chamfered lip side should be at the outside
of the bearing housing (see Fig. 4.06). This
chamfered lip prevents dirt ingress into the
housing and also allows grease to be flushed
though when greasing.
Chamfered Seal
Fig. 4.06: Correct Seal Orientation
Fig. 4.07: Spindle w/Bearing & Seal
5.3.2 Reassembly
Simba recommend that the seal and
outermost bearing are assembled on the
spindle (as per Fig. 4.07) before inserting it
into the housing and reassembling the unit.
5.4 Double Disc Axles
The axles on this roller are tensioned by the
main axle through the centre of the rings and
bearings.
Specialist equipment is required
for the disassembly of Double Disc
axles. Please consult your dealer
under any circumstances that
require disassembly of these
axles.
Maintenance of these rollers is limited to daily
greasing of the bearings to flush out dirt, and
regular inspection to ensure the assemblies
are tight, and scrapers are correctly set. The
axles can be tightened provided the bearing
pillar ‘U’ bolts are loosened to avoid
preloading the bearings as they move
sideways to each other. Ensure the bearing
pillars are re- tightened to the mainframe after
this.