Renishaw RGA22G Scale Manual

RGA22G scale guide
Scale applicator tool for RGH22 readhead installations
The RGA22G scale guide is mounted in place of any Renishaw RGH22 readhead and
uses the motion of the axis to apply RGS-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
RGS-S scale installation guide for details)

Install the scale guide

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
The design of the RGA22G allows scale application in either direction
Mounting screws
Readhead
mounting
bracket
Figure 1
(continued overleaf)
I N S T A L L A T I O N
RGA22G scale guide
Splitter screw
Direction of scale
application
RGS-S tape scale
Splitter screw
Backing paper
Figure 2
a b
I N S T R U C T I O N
Limit of travel
RGA22G scale guide
c d h
e f g
Limit stop
20mm
Start of measuring length
S H E E T
Part No. M-9531-1281