Step 1 of the motor cylinder measurements: first, select the outer diameter of the tank size suitable for measurement, then rotate the microscopes to contact the end of the calibration pole to see if there is a gap and if the calibration of the calibration is directed to the "0" position if there is an error. The correction method is: maintain the correct position of the calibration pole by curing the calibrated microclinic to the nut, aligning its “0” line with the “0” line of the fixed tube, and finally tighten it to the nut;2 touch the table core axis 2-3 times with a small hand, checking the pointer sensitivity; insert the percentage core axis into the upper end of the measuring pole and, in contact with the inner rod, rotate the large pointer around 10 blocks, with a bolt-tight bolted nut; and, with the appropriate measurement pole, insert the inner diameter table into the lower end of the pole to the lower side of the pole, to the lower part of the gauge, to the lower part of the gauge, to the lower part of the chart, to the lower part of the chart, to the “0”, to the lower part, to the lower part, to the lower point, to the lower point, to the lower pointer position, and to the lower point, and to the lower point, to the lower point, to the lower point, and to the lower point, to the lower point, and to the lower point, and to adjust to the next to the placing the transversal activity poles adjusted on the inner diameter table between the two measuring surfaces of the calibrated diameter at a thousand-foot radius, turning their microcentres to align the position of the large percentage and small pointer with the position just measured, i. E. The smallest diameter of the cylinder. At this point, the size of the 1,000-minute outer diameter is the standard size of the inner diameter of the cylinder. When the measurement dimensions of the outer diameter in thousands are determined, the measuring poles are locked in order to prevent a change in size; 4. The calibrated internal diameter gauge activity rods are inserted into the cylinder, in the direction of the centre line of the cylinder and parallel to the axis of the curve, at three positions above, medium and lower, and the minimum value in the swing is the measurement data required by measuring the front, rear and back swing poles; then the active rod level is rotated at 90°, measuring the upper, middle and next three positions of the cylinder and recording the data. The measured data are organized according to the order of the cylinders and the values of diameter, circle, column and wear are calculated separately for each cylinder; 5. The key to measurement is to find the largest and smallest places where the cylinders are worn. The maximum extent of normal wear and tear in the cylinders is usually at the upper point of movement of the front, back, back and first piston ring; the smallest is generally at the bottom of the cylinder at 10-20 mm. When measured, the large pointer of the percentage table leaves the "0" position in the direction of the clockwise, indicating that the diameter of the measurement point is smaller than the standard size of the inner diameter of the cylinder; and, conversely, that the diameter of the measurement point is greater than the standard size of the inner diameter of the cylinder。
