Great Plains P17897B Operator Manual - Manual (Page 33)

33 X-Press
Operating Instructions
5.5 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.
5.6 DD Light Roll
The spacers and rings on the DD Light Roll
are held under tension by the end plates at
the outer ends of the roll tube.
Specialist equipment is required
for the disassembly of DD Light
rollers. Please consult your
dealer under any circumstances
that require disassembly of these
rollers.
Maintenance of these rollers is limited
to yearly/end of season greasing of the
bearings and regular inspection to ensure
the assemblies are tight, and scrapers are
correctly set.
The scraper is intended to clear dirt from
blocking between adjacent DD rings. If
adjustment to the scrapers is required
ensure that the scraper cannot contact the
spacer even under load. Regularly inspect
the spacers for signs of wear and adjust any
scrapers to ensure no contact can be made.
5.4 Brakes & Wheel Hubs
The brakes should be tested before using for
the first time and after the first laden journey.
Check that the road and parking
brakes operate and release
correctly before using the
machine.
Check for hydraulic fluid and air
leaks.
Brake and hub maintenance and
servicing should be carried out by
an authorised Simba dealer.
5.3.2 Bearing Seals
It is important when replacing the labyrinth
type bearing seals in disc hubs that the seal
is fitted the right way round. The chamfered
lip side should be at the outside of the
bearing housing, nearest the disc arm (see
Fig. 5.02). This chamfered lip prevents dirt
ingress into the housing and also allows
grease to be flushed though when greasing.
Fig. 5.02: Correct Seal Orientation
ITEM PART NO DESCRIPTION
1 --- DISC ARM
2 P12900 NIPPLE - GREASE M8
3 P14593 HUB CASTING
4 P14594 HUB CAP
5 P12908 SPRING PIN
6 P12907 NUT CASTLE M27x1.5
7 SEAL 64x45x9.5
8 P12415 BEARING 32008 40x68x19
9 BEARING 32206 30x62x21
Chamfered Seal
5. Servicing and Maintenance