It's not very clear if the problem is in adjusting the scale, or if the scale detents themselves are wrong.
If it's anything like the KS120 then it's a pretty easy procedure, granted it should be set right enough in the factory. But re adjusting the scale is something you have to do sooner or later any way along with the lasers. Sending it back for that is pretty drastic, almost ridiculous, especially knowing the carrier service who brings it back might be tossing the box around. But again it's not clear if the problem is only in adjusting the scale. I recall that my used KS120 had a bent back fence, but some had it on new ones. That would cause kick backs and make it impossible to set right on both sides.
TS55R, CT22E, CTLmini, CTL MIDI, CTM 36 AC HD, Kapex KS120, ETS125, ETS150/5, RO150, RO90, CXS-set, T-15+3 set, DTS400, OF900, OF1010, OF2200 set, Carvex PS420 EBQ set, EHL 65, SSU 200, Centrotec installer set, LR32-sys, FS-800, FS-LR-1400x2, domino 500+domino sys, domino 700 XL, Surfix-sys, Sys-box 1, Syslite, LEV-350, Sys-box,MFTB/1-2-4... MFTC