Malfunctions - Causes and Remedies
278
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15.3
Malfunctions on the knotter
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15.3.1
Single knotter
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Note
The most frequent knotter malfunctions are caused by minor problems that you can eliminate
yourself in most cases. The errors may often be found in twine quality, twine guide, twine
tension, position of the tying needles or twine bar. The following illustrations of faults are
intended to help you recognise the causes of malfunctions.
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Malfunction
Cause and/or remedy
Knotter coil:
(twine has wound around the knotter hook and is
torn)
1.
Readjust the twine brake. Clean or replace if
necessary.
2.
Readjust the knotter shaft brake.
3.
Remove wound up twine.
4.
Check and readjust the twine bar.
BP 380-7-138
Knot tied:
one end of the knot is longer than the other or
the longer end is tied into the knot.
1.
Sharpen or replace dull or nicked twine blade.
2.
Not enough tension on the closer — tension the spring
with the hexagonal head screw (do not tighten on
block).
3.
Not enough tension on the twine retainer — tension
the spring with the hexagonal head screw (do not
tighten on block).
4.
Replace worn twine drivers or twine retainer parts.
5.
If the packing density is too great — reduce the baling
pressure.
6.
If twine tension is too great — loosen twine brake on
the twine box.
Knot too loose with two cleanly cut ends.
1.
Increase the tension on the knotter hook or replace it.
Ends of knots frayed.
Knots only in the twine strand guided up by the
knotter needle.
1.
Dull twine blade — sharpen the cutting edge of the
twine blade or replace the blade.
2.
Not enough tension on the twine retainer — tension
the spring by tightening the hexagonal head screw (do
not tighten on block).
3.
If the packing density is too great — reduce the baling
pressure.
4.
Replace worn twine driver or twine retainer parts.
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