1. Place a carpenter square on the playing surface of the pool table.
2. Place the level at the inside corner of the carpenters square snugly.
3. Rotate the level and carpenters square in a circle until the level bubble reads center.
4. Holding the square so as to not move it, rotate the level 180 degrees and place back in the inside corner of the carpenters square.
5. If the bubble no longer reads center, look at the bubble and determine if its going away from the leveling nuts or toward them.
6. For example: after rotating the level, it now reads 4 lines out, which at .005 thousands of an inch per line, that's a .020 thousand of an inch elevation increase/decrease per foot of elevation.
7. If the bubble is going away from the leveling nuts, then slightly loosen the top nut, then tighten the bottom nut the same amount. If the bubble is going towards the leveling nuts, then do the opposite.
8. Only adjust the bubble by half of the distance showing out of level, Once you've done this, return the level to the carpenter square, turning it again in a circle until reaching level again, then reverse the level once again checking for the same dead center bubble.
9. If still off, then repeat steps 7 and 8 until there is no deflection of the bubble from one direction to the other.
10. Once the level reads the same in both directions you are done.
11. Keep in mind that temperature effects the size of the bubble, but not its ability to find center level.
Glen
2. Place the level at the inside corner of the carpenters square snugly.
3. Rotate the level and carpenters square in a circle until the level bubble reads center.
4. Holding the square so as to not move it, rotate the level 180 degrees and place back in the inside corner of the carpenters square.
5. If the bubble no longer reads center, look at the bubble and determine if its going away from the leveling nuts or toward them.
6. For example: after rotating the level, it now reads 4 lines out, which at .005 thousands of an inch per line, that's a .020 thousand of an inch elevation increase/decrease per foot of elevation.
7. If the bubble is going away from the leveling nuts, then slightly loosen the top nut, then tighten the bottom nut the same amount. If the bubble is going towards the leveling nuts, then do the opposite.
8. Only adjust the bubble by half of the distance showing out of level, Once you've done this, return the level to the carpenter square, turning it again in a circle until reaching level again, then reverse the level once again checking for the same dead center bubble.
9. If still off, then repeat steps 7 and 8 until there is no deflection of the bubble from one direction to the other.
10. Once the level reads the same in both directions you are done.
11. Keep in mind that temperature effects the size of the bubble, but not its ability to find center level.
Glen
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