Question about alignment
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Today, while checking the axial alignment of the compressor shaft, I found that when the gauge was mounted on the pump’s rear pulley, it was positioned radially with respect to the motor; in this case the motor was more than 60 teeth above the pump. When the gauge was mounted in the opposite orientation, the motor was 12 teeth above the pump. What’s going on here? No matter how the gauge was positioned, the gap at the upper end remained the same, at 25 teeth. Please give your advice
It’s possible to tell who is taller or shorter just by looking at the micrometer with the lower end showing; this is the true measure of height. Without photos, it’s impossible to know how you carried out the operation, nor can it be analyzed
When the motor drives the pump, and the pump in turn drives the motor, this is considered single-meter calibration. For a detailed explanation, you can go to Baidu
Coupling deformation~ You can fix the gauge block and measure separately the radial runout of the pump side as well as its end face, as well as the radial runout of the motor and its end face. Check the degree of deformation of the coupling.
I’m not sure how the original poster carried out the timing process – were the 60 and 12 values read directly or calculated? The conclusion should be the same no matter how it’s calculated; it could also be due to errors.