9-40 Structure and Assembly/Disassembly
12. Check lifting line slack on the upper main unit, line can be bent smoothly without tension;
metal end of line sheath is in the groove of the bolt.
13. Turn the handle and perform keyboard part lifting for 3 times to check if every mechanism in
the main unit is normal, and then make the keyboard part in bottom position and guide all
cables into minor panel base.
14. Turn the handle and turn the upper main unit 90° left.
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