JUKI RS-1 Maintenance Manual page 176

5-11-4 Placing the Support Table Surface Horizontally
Use the HMS to measure the values at around the centers of the round marks shown below, and
adjust the flatness of the support table so that difference at three locations is 0.02 mm or less.
(Four locations for XL)
Figure 5-11-4-1 Support Table Flatness Measurement Positions
<Adjustment Procedure>
1) Loosen three screws of each round mark on the support table and secure them temporarily.
Do not loosen one screw at the center. Tighten this screw so that the ball screw does not
turn even when the table is raised.
2) Select [Manual Control] → [Transport Control] to set the support table to a position of −27mm.
Adjust the height using a block with a height of approx. 25 mm to measure the height with the
HMS.
3) Based on the lowest point of three measured points, turn the adjustment screw (one screw at
the center) in the down direction (screw tightening direction) to make the adjustment so that
the difference among three measured points is 0.02mm or less.
∗ If all of three screws (screws around the adjustment screws) fixing the ball screw are
loosened, the table may be lowered. To prevent such trouble, always tighten the screws
temporarily after the adjustment with the adjustment screws has been completed.
∗ After the adjustment has been completed, make sure that the center of the rail guide shaft
is aligned with that of the side beam.
(A-dimension is 1mm±0.5.)
Maintenance Guide
Figure 5-11-4-2 Rail Guide Shaft and Side Beam
5-28