Periodic Inspection; Inspection Item - Mitsubishi Electric RH-FRH Series Instruction Manual

5.2.2 Periodic inspection

The inspection items and timings for the robot arm are shown below.

(1) Inspection item

Carry out periodic inspection given in
Table 5-3 ： Periodic inspection items (details)
Inspection item (details)
Monthly inspection
Are any of the bolts or screws on the robot arm loose?
Are any of the connector fixing screws or terminal block terminal
screws loose?
6-month inspection
Has the dust accumulated into bellows?
(For clean/oil mist/waterproof specification. When environment with
much dust)
Note1)
2-year inspection
Is the friction at the timing belt teeth severe?
Is the timing belt tension value more than the guideline value?
Does any position mismatch occur?
Battery replacemenet
Replace the backup battery in the robot arm.
Replace the battery every year regardless of the operating hours.
Lubrication
Check the lubrication schedule for each axis, and perform
lubrication.
The lubrication schedule differs according to the model.
Is enough grease applied on the shaft?
(Greasing is required approximately every 2000 km.)
Note1) When the robot is operated 24 hours a day or with a heavy load, it is recommended to be inspected every 6
months (1,800hr).
Table 5-3.
Remedies
Securely tighten the bolts.
Securely tighten the screws.
Remove bellows and clean the inside.
(Refer to
how to remove bellows)
If the teeth are missing or severe friction is found,
replace the timing belt.
When the tension value becomes less than the
guideline value, the timing belt must be replaced.
Replace it referring to
backup
Lubricate it referring to
5Maintenance and Inspection
Page 127, "5.3.5 Replacing the bellows"
Page 136, "5.3.7 Replacing the
battery".
Page 130, "5.3.6
for
Lubrication".
Inspection items 4-96