Doosan DBC 130 II, Installation Manual

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DBC 130II DBC130II ISE41
※
The above sample is the common instruction for reading the absolute value. As
straightness is a general concern when installing the boring machine, it is easier for you
to read only one-end gradation and compare five measuring points.
▪ In the table above, if the right side is 30μ higher, draw a right arrow and type in "30" in
the table. Repeat this for other two positions. From the three values, deduct the
smallest value from the largest, which will be the measurement.
②
The
measurement
may vary depending on your view position due to the distance
between gradation of the level and water bubble tube. So you must read the
gradation vertically at 90 degrees against the level.
8) If the level measurement falls below the target, perform the static accuracy inspection of
the machine before locking the anchor nut. If you find an error, use the level to correct
it. (refer to "static accuracy inspection and correction" below)
9) When the static accuracy of the machine falls
below the specified tolerance, tighten the
anchor nuts starting from the X axis. (The
leveling target above is the measurement after
the machine static accuracy inspection)
▪
To tighten the anchor nut
①
Tighten the already tightened level-block
adjusting bolt by another 1/4 turn
(approx. 90
˚) before locking the nut with
an appropriate torque. (starting from the
X axis)
②
Inspect the accuracy again and, if an error persists, use the level-block adjusting
bolt to correct the error.
※
If you tightened the bolts evenly at first, the error is not so great if any.
10) Repeat the steps above for the Z axis and tighten the anchor nut.
11) While measuring the levels of both X and Z axes again, tighten up the anchor nuts.