Service manual

11
20) Measure the locations of the limit switch and Y-home sensor brackets on the back of
the original gantry beam. Remove each bracket bolt with a 5mm Allen wrench, pop
out the spring-loaded T-nut, and transfer each bracket and switch to the new gantry
beam in precisely the same location and orientation. Transfer the nylon cable
holders to the new gantry as well. Note: Precise positioning of these switches is
important!
21) With assistance, align the new gantry with the standoff blocks, and insert the four
mounting bolts. You may use the existing captive T-nuts in the standoff blocks. Do
not tighten the bolts all the way yet.
22) Align the top of the gantry
to the pencil line you made
prior to disassembly, then
tighten the top two gantry
bolts.
Align to pencil mark on standoff block