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Not familiar with a 270, but with my 273 - first thing to check on starting to miss ties when things have been working okay, except for a timing problem, is to make sure the twine fingers are able to function properly, assuming everthing is in correct adjustment. Problem is most noticeable if in some 'dry' grass, ie.. drought conditions or past frost, where there is a lot of dry chaff buildup from the already dead grass coming apart, at the bottom of the knotter assembly where the twine fingers are located. Second thing I would check would be 'twine quality', have come across some that will have bad areas that extend for several feet within the ball/bale/spool (whatever ya call it!) Broke needle - tight place that can't pass.....sounds like the plunger headlock activated -- timing problem!! If the 270 is like a 273, the small shear bolt at the knotter assembly 'can' shear but not fall out and release. Mine done that once, held in at an angle and let the knotter get just enough out of time it broke a needle and then activated the headlock. (Added a few 'grey hairs' finding that problem) Could be for the price of a new shear bolt at the knotter assembly, be up and running, but then it is a baler -- maybe not!! Tight place could be a bearing out and locked up, knives out of clearance and clashing, or something in the feeder area.....????? good luck Garry
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