Tormach ATC Operator's Manual page 8

If fitted, remove the upper coolant splash guards
(backsplash) from the left and right hand chip trays.
1.
Thread the M8 side of hex standoffs into mill column
and tighten securely with a wrench.
2.
Hang the tool changer square tube mount on the M10
studs. Secure with flange nuts and washers. The slots
are wider than the stud to allow for minor deviations
in hole locations, and to facilitate a small degree of tilt.
3.
With the assistance of another person, fasten the ATC
to the mount using the 4 M10 socket head cap screws
and flange nuts.
4.
Due to stack up of part tolerances, flexibility, and
backlash in the linear bearings, the changer might
settle slightly, or sag from horizontal on its mounting
system. This is normal. Compensate for minor sag by
tilting the mount slightly so the tool tray appears level
using a bubble level.
UM10081_TTS_ATC_PCNC1100_1013A
Note: Be sure to adjust the mount so that the mill
spindle cover sheet metal clears the ATC linear rail.
The mount will be fine tuned later in the procedure.
Do not tighten the flange nuts down at this point,
as you will likely be sliding the ATC a bit before final
tightening. Lightly snug the fasteners for now.
5.
Reroute the coolant hose by mounting the coolant
hose clamp to the included coolant plate. Attach the
plate to the underside of the spindle head using the
two threaded holes on the underside of the spindle
head casting.
6