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5Maintenance and Inspection
Inspection items
5-41
5.2.2 Periodic inspection
Carry out periodic inspection with the procedures given in Table 5-2.
Table 5-2 ： Periodic inspection items (details)
Procedure Inspection item (details) Remedies
Monthly inspection items
1 Are any of the bolts or screws on the robot arm loose? Securely tighten the bolts.
2 Are any of the connector fixing screws or terminal block terminal
screws loose?
Securely tighten the screws.
3 Remove the cover at each section, and check the cables for wear
damage and adherence of foreign matter.
Check and eliminate the cause.
If the cables are severely damaged, contact the
Mitsubishi Service Department.
3-month inspection items
1 Is the timing belt tension abnormal? If the timing belt is loose or too tense, adjust it.
6-month inspection items
1 Is the friction at the timing belt teeth severe? If the teeth are missing or severe friction is found,
replace the timing belt.
Yearly inspection items
1 Replace the backup battery in the robot arm. Exchange it referring to "5.3.5Replacing the backup
battery" on page 51.
3-year inspection items
1 Lubricate the grease at the harmonic reduction gears for each axis. Lublicate it referring to "5.3.4Lubrication" on page 49.