FX-3R Maintenance Guide
5-14
Rev. 1.00
5-11. Replacing the Support Table Motor (BU Motor)
1) Remove the support table as described below.
1. Stretch the transport width as much as possible.
2. Remove 12 (∗) pan head screws d from the support table c to detach the table.
∗ For the number of screws, the L-specification uses 12 pcs. while the XL-specification
uses 14 pcs.
Figure 5-11-1 Support Table
2) Loosen the tension support fixing screw f, and move the tension support assembly e in the
arrow direction to loosen the tension of the support table ball screw driving timing belt
3) Loosen the set screws h to take out the support table BU motor assembly g together with the
torque support.
4) Loosen the set screws i to detach the torque support assembly from the shaft of the BU motor
j.
5) Assemble the parts and components in the reverse order of above steps 1) to 3). When
assembling the parts and components, perform the following adjustments.
• Adjust the gap between the torque support and BU motor assembly. (section 5-11-1)
• Adjust the tension of the support table driving timing belt. (section 5-11-2)
• Place the support table surface horizontally. (section 5-11-3)
• Obtain the support table offset. (section 3-11 in MS Parameter)
Figure 5-11-2 Support Table Drive System
Figure 5-11-3 BU Motor Assembly
c 40001018
BU table (L)
d SM1040801SN
Flat head screw
M4×8
f SL6051492TN
SEMS cap bolt with washer
M5×14
g 40000927
BU motor
assembly
h SL6051442TN
SEMS cap bolt with washer
M5×14
i SM8050852TP
Set screw M5×8
j E94327290A0
BU motor
assembly
e Tension support
assembly
Toque support
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