Adjust the shuttle bed is in fact the adjustment on the axis and the axis with the best position, in principle, can only be in the form of a line can take the bottom line, in this process involves three positions, 1 points. 2 stop point. Three Line position. Is also the needle bar to run to the top point, the bottom line of the bottom line and shuttle bed. In these positions, the most important is to take the line. Usually we say that the adjustment of the shuttle bed is actually adjust the line position, adjustment must be put on the upper and lower stop point. Needle must be positive.
Adjust line position
1 first, the scale of the dial to take the line level (different models about different)
2 the needle bar is pressed, the nose is the nose, oblique angle of 45 degrees can see the best position of the needle bar half a pinhole.
3 adjust the shuttle bed and needle tip position, the needle tip is to the shuttle bed to take a line hook tip, locking screw around the tip of the hook can cover the shuttle bed hook tip for the best position.
4 adjust the shuttle bed with the needle tip of the distance (distance is too wide, can not afford the bottom line).
When the clock is 4000, the rotation speed of the rotary spindle is 8000 per minute. Many domestic hook are not up to the speed. At this time hook if not a good amount, if after unloading the backspin shuttle, traces of oil becomes larger, that is rotating shuttle is clogged with dust, need to clean up, especially rail oil hole felt, if the rotating shuttle wear is too large to be replaced with new ones, if the traces of oil is still very small, unloading shaft copper oil plug, check the filter is blocked, exclusion to operate the machine, check shaft and whether there is oil spray, oil if the normal at this time will a lot of oil outflow. If still no oil outflow, should pump check whether it is normal, oil pump and aluminium tubing between the rubber connecting is broken or bent, if there is no problem, should remove shaft gear screws and the baffle, take out shaft before operation sewing machine, when the sleeve should be a lot of oil outflow, the axial oil hole and the axis hole are not aligned. The simple method is to check whether there is a trace of friction in the shaft oil hole, the standard position should be no trace of the oil hole, at this time the shaft Kong Zheng
Good is sleeve oil hole, according to the friction marks adjusted axial position and then check out the amount of oil, after a good tune should ensure the shaft to move left and right.