Scale Mounting; Bs78-10N/Ns; Bs78-40N/Ns/R/Rs To 420N/Ns/R/Rs - Sony BS78 Series Instruction Manual

3-2. Scale Mounting

3-2-1. BS78-10N/NS

Check that there is no dust or other foreign substances on the mounting surface, and mount the scale parallel
to the machine guide as shown in the figure. (Fastening torque: 0.8 N . m)
The reference surface is shown by the dotted and dashed line in the figure. Adjust the parallelism with the
dial gauge or prepare an abutment on the mounting surface.
Note: "M" refers to the machine guide.

3-2-2. BS78-40N/NS/R/RS to 420N/NS/R/RS

1
Check that there is no dust or other foreign substances on the mounting surface, and mount the reference
plate parallel to the machine guide as shown in the figure. (Fastening torque: 1.4 N . m)
The reference hole is located on the left, as shown in the figure. Adjust at the right side while observing
the parallelism with the lever type dial gauge.
n
The scale is pressed against the reference plate for parallelism when mounting. The reference plate is vital to
accurate scale mounting. Be sure to always use the supplied screw and mount it exactly as described in the
specifications.
BS78-40N/NS/R/RS, 120N/NS/R/RS, 170N/NS/R/RS,
220N/NS/R/RS, 370N/NS/R/RS, 420N/NS/R/RS
M4 x 8
Plain washer
(nominal 4)
Reference abutment surface
8
(E)
0.01 (0.00039) M
Fig. 3-7
+0.05
Reference Ø4
0
Fig. 3-8
Fig. 3-9
M3 x 8
Plain washer
(nominal 3)
0.01(0.00039) M
Note: "M" refers to the machine guide.
BS78-70N/NS/R/RS, 270N/NS/R/RS, 320N/NS/R/RS
M4 x 8
Plain washer
(nominal 4)
Reference abutment surface
BS78