IAI America CT4 - Manual (Page 36)

4. Maintenance Inspection
30
[Z-axis]
1) Remove the four screws holding the Z-axis cover. Detach the Z-axis cover.
Tool to use: Hex Wrench 2.5mm-sized
2) Turn ON the controller, put the brake switch up (to RLS side) to release the brake and move
the table down . Turn OFF the controller.
BrakeSwitch
Z-axis
Table