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ABB 3HAC058990-004 is a motor including pinion documented for axis 1 service in the IRB 660 platform. Its configuration is graphite-white first-axis motor; orange and white variants have different suffixes. Confirm the complete article identity, installed variant and applicable ABB service instructions before replacement.
The -004 suffix identifies the graphite-white first-axis motor configuration in the documented family.
Do not mix the graphite-white, ABB-orange and white suffix variants without a parts-list check.
The replacement sequence must preserve pinion fit, motor feedback, cable routing and first-axis calibration.
Confirm the -004 suffix and graphite-white configuration against the installed IRB 660 motor label.
After refitting, verify base-axis reference, low-speed travel, braking and absence of abnormal gear noise.