Leveling; For All Box Way Vmcs - Siemens SINUMERIK 840D Maintenance Manual

3.4 LEVELING

3.5.1 FOR ALL BOX
WAY VMCS
OCTOBER 2005
Leveling is an important first step in setting up the VMC. All calibration and squareness
performed on the assembly line is done with the machine leveled. It is important to
follow the sequence below precisely to ensure proper results.
Tools Required
Precision Level, such as the Starrett 12", P/N 199Z
WARNING!
Verify that the scale reads the same when rotated 180 degrees.
If using a flashlight to see the bubble, do not place the flashlight on the level, as it
will warm the bubble and give an incorrect reading.
1. The VMC should be positioned on one solid concrete slab (see Pre-Installation,
section 2, MAN-0126 R1). Do not straddle any cracks or seams.
2. Center the leveling pads under the leveling screws.
3. Level the VMC as close as possible to the leveling pads. The leveling screws
should be extended as little as possible to reduce vibration through the sheet
metal.
NOTE
Make sure that machines with the chip conveyor option are raised high enough so that the chip
conveyor tank fits under the sheet metal of the VMC.
4. Verify the Cold Start indicators, then cold start the VMC.
5. Clean the level with alcohol.
6. Jog the Y axis to the Y+ limit.
7. Clean the outer base ways with alcohol.
INSTALLATION PROCEDURE
SIEMENS MAINTENANCE MANUAL
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