Claas MEDION 310, Руководство по ремонту

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299 216.0 - RHB MEDION 340 - 310
1.3.3
General repair instructions
Pre-assembly:
1. Cut off the tube at right angles. Do not use a pipe
cutter! This will slant the tube wall, causing heavy
inside and outside burrs. Slightly deburr the inside
and outside tube end (do not touch!) and clean it.
In case of tube bends, the straight tube end up to
where the bending radius starts must be at least
twice the height of the union nut.
2. Push the union nut and the ferrule on the tube.
3. Press the tube against the stop in the connector
and tighten the union nut until the ferrule grabs the
tube (the tube is not allowed to turn along). This
point can be felt because increased power is
needed from here.
4. Tighten the union nut half a turn beyond the point
where resistance is felt.
5. Check the cut at the cutting edge: A visible collar
must fill the space ahead of the ferrule face end.
The ferrule may rotate, but axial displacement
must not be possible.
Final assembly:
Place the pre-assembled tube in the well-oiled
threaded joint, tighten the union nut until a higher
power requirement is clearly felt and then by another
half turn beyond this point.
Repeated assembly:
Every time the ferrule fitting has been loosened,
retighten the union nut without using increased force.
Ferrule fitting leaks:
If a fitting leaks, first loosen the union nut until some oil
escapes and then tighten it as specified.
Profiled ring fittings on hydraulic lines
When pre-assembling the unit and for pre-assembled
factory-delivered profiled ring fittings, the following
applies: installation is in the associated, well-oiled
threaded joint with half a turn of the union nut beyond
the point where resistance is clearly felt.
Pre-assembly:
1. Cut off the tube at right angles. Do not use a pipe
cutter! This will slant the tube wall, causing heavy
inside and outside burrs. Slightly deburr the inside
and outside tube end (do not touch!) and clean it.
In case of tube bends, the straight tube end up to
where the bending radius starts must be at least
twice the height of the union nut.
2. Push the union nut and the profiled ring on
the tube.
3. Press the tube against the stop in the connector
and tighten the union nut until the profiled ring
grabs the tube (the tube is not allowed to turn
along). This point can be felt because increased
power is needed from here.
4. Tighten the union nut half a turn beyond the point
where resistance is felt.
5. Check the cut at the cutting edge: A visible collar
must fill the space ahead of the profiled ring face
end. The profiled ring may rotate, but axial dis-
placement must not be possible.
Final assembly:
Place the pre-assembled tube in the well-oiled
threaded joint, tighten the union nut until a higher
power requirement is clearly felt and then by another
half turn beyond this point.
Important: Back up the threaded joint with
a spanner!
Repeated assembly:
Every time the profiled ring fitting has been loosened,
retighten the union nut until resistance is felt and then
continue for half a turn beyond that point.
Important: Back up the threaded joint with
a spanner!
Profiled ring fitting leaks:
If a fitting leaks, first loosen the union nut until some oil
escapes and then tighten it as specified.
Attention!
Any deviating tightening torques reduce the
rated pressure resistance and the service life
of the screw fitting. This results in leaks and
the tube slipping out.