ABB IRB 8700 Series Product Manual page 124

3 Maintenance
3.3.8 Inspecting the balancing devices
Continued
Required equipment
Equipment
Balancing device material set
Inspection for dissonance
1
2
3
Inspection for damage
Check for damages, such as scratches, general wear, uneven surfaces or incorrect
positions.
1
Inspection for leakage
The upper and lower ears of the balancing devices are lubricated with grease.
Leaks at V-rings etc. are not acceptable and must be attended to immediately to
avoid damage to the bearing.
1
2
3
4
Continues on next page
124
Inspection points
Check for dissonance from the upper and lower
bearing.
Check for dissonance from the balancing device
(a tapping sound, caused by the springs inside
the cylinder).
Check for dissonance from the piston rod (a
squeaking sound may indicate worn plain bear-
ings, internal contamination or insufficient lubric-
ation).
Inspection points
Check for damage on the part of the piston rod
that is visible on the balancing device.
Action
Wipe clean the area at the upper and lower ears
from contamination.
Run the robot for some minutes, in order to move
the balancing device piston.
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot working
area.
Inspect the area around the lock nut and V-ring
at the upper and lower ear for leakage.
© Copyright 2015-2018 ABB. All rights reserved.
Article number Note
3HAC048239-006
Action
If dissonance is detected, perform
maintenance according to given
instructions in the maintenance set.
If dissonance is detected, replace
the balancing device or consult
ABB Robotics.
How to replace the balancing
device, see
cing devices on page 552
If dissonance is detected, perform
maintenance according to given
instructions in the maintenance set.
Action
If damage is detected, perform
maintenance according to given
instructions in the maintenance set.
Note
Replacing the balan-
Product manual - IRB 8700
3HAC052853-001 Revision: F