Siemens milltronics MSI Guia De Inicio Rapido página 9

6. Establishing good idler alignment is the most important part of the installation
procedure. Scale accuracy is directly affected by alignment. Use wire or string to
check for alignment. The wire or string must be able to withstand sufficient tension
in order to eliminate any sag. Adjust shims so that all rolls of the A2 through to the
R2 idlers are in line within ± 0.8 mm (1/32").
wire or string
(for alignment)
Although the accepted tolerance for idler alignment is ± 0.8 mm (1/32"), the scale-
mounted idler should never be lower than the adjacent idlers.
7ML19985XK81
approach idlers
A 2
A 1
S 1
Milltronics MSI/MMI – QUICK START MANUAL
MSI with
modified idler
R 1
retreat idlers
R 2
Page EN-7