Sony SJ700-015 Handbuch Seite 21

(2) Checking of mounting position and tapping
Check that the parallelism for mounting scale meets
the specifications, and then tap for M4 screws of 10
mm (0.39") depth referring to the Dimensions on page
20.
(3) Mounting of scale
Mount the scale loosely with M4×10 hex socket head
cap screws and plain washers (M), and leave it for 30
minutes for the scale to reach ambient temperature.
Then firmly mount the scale.
(4) Measuring parallelism of scale with machine table
movement
Place a dial gauge directly where the alignment mark
(Fig. 3-7 1 in the figure below) is positioned on the
side of the scale, and check that the scale is surely
mounted parallel to the machine table movement.
Alignment mark
1
2
Fig. 3-7 Parallelness check of scale and machine table movement
Adjust the parallelism of the length between the two
alignment marks to within 0.15 mm (0.006") and tighten the
setscrews. For the scale with a measuring length of 1250
(49.21") or more, adjust the parallelisms of the lengths
between the alignment mark and those on both sides of it to
within 0.15 mm (0.006").
Note
Since alignment marks are not provided on scales with a
measuring length of 250 mm (9.8") or less, place the dial
gauge on the scale unit and ensure that the allowance at
the two ends of the machine travel is within 0.15 mm
(0.006").
Plain washer (M)
M4×10
Fig. 3-8 Parallelism check by alignment marks
Alignment marks
Unit: mm (inch)
11