horsch Joker RT Series, Owner'S Manual

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Setting/Operation
Cultivation discs:
The serrated discs of the machine cut the harvest residues and the soil and mix the residues in to the soil
down to working depth.
Maintenance:
The bearings are oil filled and therefore, maintenance free. However a bit of penetrating lubricant may
be applied to the backside of the bearing hub to lubricate the hub seal. The picture below will identify
where to spray any type of sufficient penetrating oil for lubricating the seal.
Check the discs regularly for clearance, leaks, tightness and unrestricted rotation.
Notes on cleaning:
The mechanical seals of the disc hubs are very sensitive. If water has entered them and the machine is
then parked over a longer period of time, damage may occur.
This can cause corrosion, and both mechanical seal rings may stick together. The mechanical seal rings
will then rotate around the O-ring and damage it. Oil would run out of the hub and the bearing would be
damaged after a short while with no lubrication.
• Bearings must therefore not be cleaned with high pressure cleaning equipment.
• Before longer periods of rest, the bearing locations should be sprayed with a rust dissolver/inhibitor,
or similar lubricant.
Before resuming operation, the discs should be turned by hand and checked for unrestricted rotation.
The disc hub is oil filled as mentioned above. If the seals or O-rings are damaged and further service is
required, replace the seals and O-rings and fill the hub with 1.3 ounces 75w140 synthetic gear oil.
Apply penetrating oil
to backside of hub to
lubricate the seal.