Z-Axis Encoder & Dc Motor Ass'y Replacement - Huvitz EXCELON Service Manual

8. Z-axis Encoder & DC Motor Ass'y Replacement
1. Remove the Top Cover and Side Cover.
2. Remove the Bottom Plate.
Refer to [4. R-axis Rotation Cable Replacement - Step '1'].
3. Disconnect the connector that is linked to the Middle I/F Board.
4. Remove DC Motor I/F Board and DC Motor I/F Board.
Refer to [7. R-axis Encoder & DC Motor Ass'y Replacement - Step '3', '4'].
5. Disconnect the DC Motor cable connector and Encoder cable connector of the Z-axis Encoder & DC
Motor Ass'y.
6. Remove screw from the Z-axis Encoder & DC Motor Ass'y and for the spring also.
Take off the Z-axis Encoder & DC Motor Ass'y.
7. Replace them with new ones in reverse order.
8. Align Encoder Pinion and Z-Encoder Rack according to below process.
If the amount of backlash is good enough skip this step.
① Loosen two locking screws of the Gap-Controller-Z.
② Adjust backlash while moving the Gap-Controller-Z.
③ When finished, tighten Gap-Controller-Z carefully.
9. Assemble all parts in reverse order.
.
Caution
Z-axis backlash is important.
Adjustment needed
Perform Frame Calibration.
Step 5
Gap-Controller-Z
Step 8-②
Step 6
Step 8-①
CFR-4000 Maintenance
EXCELON
Ⅲ
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