IAI America SSPA - Manual (Page 74)

12. Maintenance/Inspection
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Warning: y Do not disassemble the front cover because the ball screw is supported by the front cover. If a
proper adjustment of the front cover is lost, the shaft center may become offset and the traveling
resistance may increase or life of each part may become shorter, or abnormal noises may
generate.
y An encoder is built into the encoder cover. The encoder not only detects the rotation angle and
home signal, but it also performs a critical function in the AC control and the encoder and motor
phases have been adjusted precisely. Never touch the encoder.
Caution: Do not forcibly bend or damage the stainless sheet when checking the interior.
Any changes to the installation condition cause the sheet to be placed disproportionately on one
side and affect the life of the product. In such a case, please contact the IAI Sales Engineering
Section.
In addition, be sure to wear gloves, etc. when working because the edges of the stainless sheet
may cause an injury.