Renishaw RGH24 Scale Manual

Installation guide
M-9541-0035-03-A
RGH24/25 Scale guide
Scale applicator tool for RGH24 and RGH25 readhead installations
The RGA245 scale guide is mounted in place of any Renishaw RGH24 or RGH25 readhead
and uses the motion of the axis to apply RGS20-S tape scale parallel to the guideway whilst
simultaneously removing the backing paper - a one man, one hit operation.
Scale installation
Prepare scale and surface

Ensure scale is cut to correct length and mounting surface has been prepared
(refer to Scale installation guide M-9517-2855 for details).
Install the scale guide
Figure 1

Mount the scale guide to the readhead bracket as shown in Figure 1.

Be careful to check that the readhead and the scale guide have the same orientation, as the
readhead does not lie centrally over the scale.

Move the guide to the start of axis travel. Note the direction of scale application as shown
in Figure 2.
scale application
RGS-S
tape scale
Splitter screw
Backing paper
Figure 2
Mounting screws
Readhead mounting bracket
Direction of
RGA245
Scale guide
Splitter screw
Limit of travel
RGA245
Scale guide
>20 mm
Limit
stop