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X-Carriage Assembly
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This repair requires timing and other adjustments and should be done only by an authorized
service technician.
The only reason for removal of the x-carriage assembly is to replace the bearings, located on top of the
carriage, if they are damaged. Damage will usually result from an x-motor fault that causes it to runaway,
operator error, or some kind of impact to the x-carriage assembly. When this happens, the bearing might
develop some “flat spots” that make the carriage move left or right roughly. Damage can also be caused
from fretting corrosion due to misalignment of the bearings or lack of proper lubrication (see “Carriage
Rail Lubrication”).
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Note: If corrosion of the carriage rails occurs, the x-beam assembly must be replaced using pro-
cedures prescribed in “X-Beam Assembly”.
Replacement Parts:
• two (2) rear straight linear bearing assemblies (PN: 30781-03)
• two (2) front straight linear bearing assemblies (PN: 30782-03)
Removal/Repair Procedures:
•
Note: When the linear bearings are damaged, all of them will usually sustain the same damage.
It is recommended that you replace all four bearing assemblies at the same time.
Figure 1 - X-Beam and Carriage Installed on Machine
1. Turn the machine OFF.
2. If installed, remove the hoop and both hoop arm assemblies.
Figure 2 - Remove Two Screws on Cable Pulley Bracket
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