Maintenance and repairs
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14.6 Hydromatic overload protection - depressurising the hydraulic sys-
tem
The hydraulic system must always be de-
pressurised if service or repair work needs
to be carried out, for example. To do this,
the control unit of the tractor must be
switched to floating position with the
plough lowered and the relief valve (5),
which is located behind a protective cap,
must be opened.
Before the implement is put back into op-
eration, the relief valve (5) must be closed
again and the system pressure built up to
at least 50 bar.
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