5Maintenance and Inspection
Maintenance and inspection procedures
5-53
5.3.4 Cleaning inside the cover of clean specification
（
RV-2AC-SA/SB, RV-3AJC-SA/SB
）
This robot has dust generating elements (timing pully, timing belt) in the No.2 arm cover U/L, thus, the inside must
be cleaned periodically. Clean these areas once every three months (500 hours).
1
) Refer to
"5.3.2Installing/removing the cover" on page 48
, and remove the No.2 arm cover U/L
2) Wipe the dust sticking on the inside of cover with dry cloth or with alcohol. Take care not to damage the
sponge packing attached on the No.2 arm cover U/L at this time.
3) Wipe the dust sticking on the inside of forearm with dry cloth or with alcohol. Take care not to damage the
sponge packing attached on the forearm at this time.
4) Install the No.2 arm cover which removed with the above step
. Take care not to damage the above
sponge packing at this time
This completes the cleaning inside the cover.
Fig. 5-8
：
No.2 arm cover cleaning methods of clean specification
No.2 arm cover U
Timing pulley
Packing
Timing belt
Forearm
Packing
No.2 arm cover L
