ABB IRB 6640 - 180/2.55 Product Manual page 134

3 Maintenance
3.3.7. Inspection, balancing device
Continued
Check for contamination / lack of free space
132
Action
3.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
For Foundry Prime robots: Do not turn off the air
pressure to motors and SMB.
4. Check the o-rings at the front ear for leakage.
Replace the o-rings, if any leaks are detected.
Excessive grease from between the shaft and
the sealing ring is normal and is not considered
as a leak!
Action
1.
DANGER!
Turn off all electric power, hydraulic and pneumatic pressure supplies to the robot!
For Foundry Prime robots: Do not turn off the air pressure to motors and SMB.
2. Check that there are no obstacles inside the frame, that could prevent the balancing
device from moving freely. See the figure
128.
Keep the areas around the balancing device clean and free from objects, such as service
tools.
Note
The o-rings are included in the
Maintenance kit, bearings and seals,
already assembled with sealing
spacers and sealing rings.
Art. no. for the kit is specified in
Required equipment on page
The replacement of the complete
bearing is also detailed in section
Replacement of spherical roller
bearing, balancing device (old and
new) on page 281.
Incorrect leakage is shown in the
previous figure.
Inspection points, balancing device on page
3HAC026876-001 Revision: C
129.