Great Plains P18140C Operator Manual - Manual (Page 34)

8-10m Press Range
Operating Instructions
34
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
6 Try to shake/rock the outer edge of the
hub/spindle: play of 0.1 / 0.2mm will
not reduce the bearings’ life and, in
addition, prevents overheating. If the
adjustment is correct the hub should
turn freely with the only friction being
from the seal.
Е
Е
Е
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Fig. 5.01: Checking Disc Bearing Adjustment
5. Servicing and Maintenance
5.4 Tines
When performing maintenance
work on tines extreme care
should be taken. Wear goggles
and gloves at at all times when
maintaining tines.
Safely support unfolded machine
in raised position using taps
and stands before attempting
maintenance work on tines.
Do not attempt to assist fitting tine
points with a steel headed hammer,
this can lead to splintering of the
metal due to its hardness, which
can cause injury. If tine fitting
requires assistance, a copper/
hide or plastic mallet should be
used.
Fig. 5.03: Knock-on Tine Point Removal Tool

STRIKE WITH
MALLET
ENGAGE POINT
REMOVAL TOOL