Service manual

X – Axis Reversing Unit Replacement

Reversing units may require replacement in the event of failed or missing internal

cartridge bearings. All four X-axis reversing units are mounted to the machine frame

extrusions in a similar manner, however, each will require a different amount of

disassembly of the machine in order the access the suspect unit. This procedure covers

replacement of the top-left (from front), reversing unit, which is the most accessible X-

axis reversing unit.

1) Move the gantry to the center of the

machine frame, and lock it into

position with four angle brackets;

one on each side of the top and

bottom ends of the gantry. Use

spring-loaded T-nuts and flat head

M5 bolts to mount the brackets

securely to the frame.

2) Remove the cable carrier from the

carrier bracket, and the bracket from the rear of the top adapter block.