BS78
(E)
9
M4
×
8
Reference plate
Plain washer (nominal 4)
Scale clamp
M4
×
8
Reference plate
Plain washer (nominal 4)
Scale clamp
2
Attach the scale clamps loosely (1 or 2 full turns looser than the semi-tightened position) by using the
mounting screws, as shown in the figure.
Fig. 3-10
3
Check the mounting surface and the datum surface of the scale for dust and dirt. If the surfaces are dirty,
wipe them clean with gauze moistened with alcohol.
Fig. 3-11
BS78-40N/NS/R/RS
BS78-70N/NS/R/RS, 270N/NS/R/RS, 320N/NS/R/RS
Mounting surface
Datum surface
BS78-120N/NS/R/RS, 170N/NS/R/RS,
220N/NS/R/RS, 370N/NS/R/RS, 420N/NS/R/RS
Reference plate
Spacer