Maintenance - hydraulic system
314
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21.2
High-pressure filter
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The filter takes up depositions of solid particles of the hydraulic system. The filtering of the
hydraulic circuit serves as a prevention of damages on components of the circuit. The filter is
equipped with an optical contamination indicator (7). The contamination indicator (7) informs
optical about the degree of contamination of the filter
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Note
Check the contamination indicator before the machine is used and exchange the contaminated
filter element if necessary.
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When starting in cold condition the button on the contamination indicator (7) could hop out. Only
press the button back in after achieving the operating temperature. In case it immediately hops
out again, the filter element needs to be changed.
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1
2
5
3
4
EIN
AUS
Fig. 229
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Replacing the Filter Element
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The filter (6) of the on-board hydraulic system is located in front of the twine box on the left side
of the machine.
The filter (6.1) for the work hydraulics is located in the front area of the drawbar.
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ENVIRONMENT! - Disposal and storage of used lubricants and oil filters
Effect: Environmental damage
Store or dispose used oil and oil filters according to statutory provisions.
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Collect escaping oil in a suitable container.
• Relieve all pressure from the hydraulic system.
• Unscrew the bottom part of the filter (4) from the top part of the filter (1), clean it and make
certain that it is not damaged.•
• Remove the filter element (3) and replace it by a new one with identical properties.
• Push a new filter element (3) onto the valve sleeve (5).
• Check the O-ring seal (2) and, if necessary, replace it by a new one with identical
properties.
• Screw the bottom part of the filter (4) onto the top part of the filter until the stop is reached
and turn it back one quarter of a revolution.
• Charge the hydraulic system with pressure and check it for leaks.
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