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    How To Adjust The Fuel Supply Of Sewing Machine For Sewing Machine

    2012/9/27 16:57:00 685

    Sewing MachineRotary ShuttleOil Quantity

    The sewing machine is running at a high speed for a long time. When the speed is 4000 revolutions per minute,

    Spinning shuttle

    The speed is 8000 revolutions per minute.

    Many domestic spinning shuttles do not reach this speed. At this point, if the rotary shuttle fails to supply oil well, it will cause serious faults such as serious wear, noise and so on.

    Especially when it comes, the temperature rise of the shuttle can be very high, and even the shuttle can not get out of the shuttle shell, so it is necessary to adjust the fuel supply of the shuttle.


    Find a piece of cardboard under the shuttle and run the machine for at least 1 minutes. Then check the oil stains on the board.

    If there is little oil or oil stains on the board, pfer the fuel adjusting screw to the head of the screw completely and block the oil return hole. Then check the oil quantity. If there is still little oil trace, there is something wrong with the oil circuit.


    First, unload the rotary shuttle, then check the oil volume. If the oil traces after unloading the rotating shuttle are bigger, that is, the rotary shuttle is blocked by dust and needs to be cleaned, especially the oil hole felt at the track. If the shuttle is worn too large, the new one should be replaced. If the oil stain is still small, the lower shaft copper oil plug is removed, and the filter element is checked for blockage. After removing the machine, the machine is run, and if there is any oil ejection on the lower shaft, if there is normal oil passage, there will be a lot of oil outflow.

    If there is still no oil flow, check whether the oil pump is normal and whether the rubber connection between the oil pump and the aluminum tubing is damaged or bent. If there is no problem, the lower shaft gear bolt and the retaining ring should be unloaded, the lower shaft should be drawn, and then run again.

    Sewing machine

    At this time, there should be a large number of oil outflow in the axle sleeve, which indicates that the oil hole of the lower shaft is not aligned with the axle sleeve hole.

    A simple method is to check whether there is friction trace in the oil hole of the lower shaft. The standard location should be the frictional trace of the oil hole. At this time, the shaft of the lower axle is exactly aligned with the oil hole of the positive axle sleeve, and the right axle position is adjusted according to the friction trace, and then the oil quantity is checked. After adjusting, the situation of the lower axle is not guaranteed.


    If the shaft is still out of the oil after unloading the lower shaft, it is necessary to check whether the oil hole of the oil pump, tubing and shaft sleeve is blocked or damaged, especially the oil hole felt at the track.

    If the shuttle wear is too large, new shuttle should be replaced; if oil stains are still small, it is also necessary to note that the rise in food prices and living prices has played a major role in promoting the rise of CPI, and the impact of imported inflation can not be ignored.

    Therefore, we say that although the CPI growth is still high, the controllability and structural characteristics are outstanding.

    From the point of view of balance of payments, because our international balance of payments is lagging behind, we have to discuss it from the trade situation.

    China's trade surplus in the first five months of this year was US $78 billion, down 8.6% from the same period last year. We unloaded the lower shaft copper plug and checked whether the filter core was blocked. After removing the machine, we checked whether there was any oil ejection on the lower shaft. If the oil circuit was normal, there would be a lot of oil outflow at this time, and we should pay attention to whether the oil pipe was inserted in the wrong hole.


    After adjustment, the

    Oil quantity

    The adjusting screw is adjusted to the right position to prevent contamination of the fabric when the oil volume is too large.

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