RGH34 RGS40
installation guide
6
Scale application
The scale applicator A-9537-0197 is used for installing RGS40 scale for RGH34 systems only.
The RGH34 scale applicator is designed for use with a ‘typical’ RGH34 mounting bracket, for example:
1
Allow scale to acclimatize to installation environment prior to installation.
2
Thoroughly clean and degrease the substrate using recommended solvents (see 'Storage and handling').
Allow substrate to dry before applying scale.
3
Mark out ‘START’ and ‘FINISH’ points for the scale on the axis substrate. Ensure that there is room for the
end clamps (see ‘RGS40 scale installation drawing’).
4
Locate applicator into mounting bracket, ensuring scale guides on underside of body run parallel to
axis of motion. Place the shim supplied with the readhead between the applicator and substrate to set
the nominal rideheight.
5
Move axis to scale start position, leaving enough room for the scale to be inserted through the applicator.
6
Begin to remove the backing paper from the scale and insert scale into the applicator up to the
‘START’ point. Ensure that the scale runs between the two guides on the bottom of the applicator.
7
Apply finger pressure to the scale at the ‘START’ point, using a clean lint-free cloth, to ensure scale end
adheres well to substrate.
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.
9
Remove applicator and, if necessary, adhere 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 the scale using Renishaw scale wipes (A-9523-4040) or a clean, dry, lint-free cloth.
Typical mounting
bracket
RGH34 applicator
M4 screw to aid applicator
handling
(not supplied)
11
Fit end clamps (see ‘End clamps’ section).
12
Allow 24 hours for complete adhesion of scale before fitting the reference mark or limit magnet.
End clamps
A-9523-4015 is an end clamp kit designed to be used with Renishaw RGS scale.
IMPORTANT:
End clamps should be used to ensure positional stability of the scale and
reference mark repeatability.
NOTE:
End clamps can be mounted before or after readhead installation.
Ensure that excess glue is wiped away
from scale as it may affect the readhead
signal level.
3
The end clamp features two small regions
of contact adhesive. These will temporarily
hold the end clamp in position while the
glue cures. Remove the backing tape
from either side.
15 mm
1
Remove the lacquer coating from the last
15 mm of each end of the scale with a knife
and clean with one of the recommended
solvents (see ‘Storage and handling’).
4
Immediately position end clamp
over the end of the scale.
Allow 24 hours at 20 °C
for full cure.
2
Thoroughly mix up a sachet of glue
(A-9531-0342) and apply a small amount
to the underside of the end clamp.
Reference mark and limit switch actuator installation
Screw mounted or adhesive mounted reference mark and limit switch actuators are available.
Refer to RGH34 readhead installation drawing and RGS40 scale installation drawing for
actuator positioning.