Scale Application - Renishaw RGH41 Installation Manual

Scale application

RGA22 - scale applicator
(recommended for longer axes)
The RGA22 scale applicator kit (A-9531-0265) is designed specifically for installing RGS40-S scale for use
with the RGH41 readhead. When installing RGS40-P scale use applicator kit (A-9531-0280).
RGA22G - scale applicator
(recommended for shorter axes or where space is limited)
The RGA22G scale applicator (A-9531-0239) is designed specifically for installing RGS40-S scale for
use with the RGH41 readhead. When installing RGS40-P scale use scale applicator (A-9531-3528).
1
Allow scale to acclimatize to installation environment prior to installation.
2
Mark out 'START' and 'FINISH' points for the scale on the axis substrate. Ensure that there is
room for the end clamps (see 'RGS40 installation drawing').
3
Thoroughly clean and degrease the substrate using recommended solvents
(see 'Storage and handling'). Allow substrate to dry before applying scale.
4
Mount the scale applicator to the readhead mounting bracket using M3 screws. Place the shim
supplied with the readhead between the applicator and substrate to set the nominal height.
NOTE: Scale applicator can be mounted either way round to enable easiest orientation for
scale installation.
5
Move axis close to scale start position, leaving enough room for the scale to be inserted
through the applicator, as shown below.
6
Begin to remove the backing paper from the scale and insert scale into the applicator up to the
'START' point (as shown). Ensure backing tape is routed under the splitter screw.
7
Apply finger pressure to the scale at the 'START' point,
using a clean lint-free cloth, to ensure scale end
adheres well to the substrate.
RGH41 RGS40 installation guide
For instructions on how to use the RGA22 please
refer to 'RGA22 scale applicator User's guide'
(M-9531-0297).
'START' point
M3 mounting holes
8
Slowly and smoothly move the applicator through the entire axis of travel, ensuring the backing
paper is pulled manually from the scale and does not catch under the applicator.
Direction of scale application
Scale
Splitter screw
Backing paper
9 Remove applicator and, if necessary, adhere the remaining scale manually. Apply firm finger
pressure via a clean lint-free cloth along the length of the scale after application to ensure
complete adhesion
10
Clean scale using Renishaw scale cleaning wipes (A-9523-4040) or a clean, dry, lint-free cloth.
11
Fit end clamps (see 'End clamps' section).
12
Allow 24 hours for complete adhesion of scale before fitting reference mark and limit magnets.
START
5