Great Plains DTX300 P16315 - Manual (Page 27)

27 DTX 300
Operating Instructions
5. Servicing and Maintenance
5.5 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.
5.4.2 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.
Chamfered Seal
Fig. 5.02: Correct Seal Orientation
3 6
4
5
9 8
7
2
14.00
IT EM PAR T N O D ESCR IPT ION
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 BEARING 32008 40x68x19
9 BEARING 32206 30x62x21
P12415
Fig. 5.01: Checking Disc Bearing Adjustment
5.6 Preparation for
Storage
If you need to store the machine for a longer
period, observe the following points:
„ Park the machine undercover if
possible.
„ Protect the roll / discs against rust. If you
need to spray the implements with oil,
use light biologically degradable oils,
e.g. rape oil.
Cover any rubber sections before
using oil sprays. These sections
must not be oiled.
Remove any traces of oil with a
suitable cleaning agent.