Gason NT8000, Operator'S & Parts Manual

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Maintenance & Service
20
ScariTILL Tine Assembly
Caution: Extreme care must be taken when dismantling the tine. The amount of stored energy in
the tine due to the compressed spring is potentially very dangerous.
To dismantle the tine assembly, the following procedure must be adhered to:
1.
Fit the washer, thrust bearing and self-aligning cone through the dismantling bolt. Refer to
“Scari-Maxx Tine Assembly” in the “Spare Parts Manual” for an illustration.
2.
Apply grease to all friction areas, i.e. bolt thread, self-aligning cone and thrust bearing. Molyb-
denum Disulphide extreme pressure grease such as MOLYBOND OPAL HI-LOAD (TPG) is recom-
mended. This will dramatically improve the wear life of these components.
3.
Fit the bolt through hole in top plate of the tine tower and screw it into the spring retainer by
hand as far as possible.
4.
Continue to screw bolt with a suitably large spanner until the bolt takes the spring load off the
tine’s primary pivot, the spring should only need compressing a few millimetres.
5.
Remove the primary pivot pin and lever the lower end of the spring rearwards with a crow bar,
or the like.
6.
Whilst keeping the pressure on the crow bar, rotate the pivot bracket down and outwards to al-
low the spring to freely extend. This may require another lever to do so.
7.
Begin to unscrew the bolt, i.e. allow the spring to extend in length.
8.
Nearing the end of the bolt engagement with the spring retainer, ensure that the spring has
reached its free uncompressed length before removing the bolt completely.
The procedure for assembly of the tine is reverse of dismantling.