ABB Robotics IRB 6790, Product Manual

Page: 115 / 668

Required material
Note Article number Equipment
The maintenance kit contains all
necessary parts to replace the
bearing. 3HAC064119-001 Maintenance kit, link ear
The maintenance kit contains all
necessary parts to replace the
bearing. 3HAC064403-001 Maintenance kit, cradle
Check for dissonance
The check points are shown in the figure Inspection points, balancing device on
page 114 .
Action Check points
If dissonance is detected, perform maintenance accord-
ing to maintenance kits and instructions in section
Re-
placing spherical roller bearing, link ear on page 367 and
on page ? .
Check for dissonance from
the bearing at the link ear
and the bearings at the rear
attachments. 1
If dissonance is detected, replace the balancing device
or consult ABB Service. Check for dissonance from
the balancing device (a tap-
ping sound, caused by the
springs inside the cylinder). 2
How to replace the device is detailed in section Repla-
cing the balancing device on page 382 . This section also
specifies the spare part number.
If dissonance is detected, perform maintenance accord-
ing to given instructions in Maintenance kit, complete. Check for dissonance from
the piston rod (squeaking
may indicate worn plain
bearings, internal contamin-
ation or insufficient lubrica-
tion). 3
Check for damage
Check for damages, such as scratches, general wear, uneven surfaces or incorrect
positions.
The check points are shown in the figure Inspection points, balancing device on
page 114 .
Action Check points
If damage is detected, perform mainten-
ance according to given instructions in
Maintenance kit, complete. Check for damage on the part of the pis-
ton rod that is visible at the front of the
balancing device. 1
Continues on next page
Product manual - IRB 6790 115
3HAC063331-001 Revision: B
© Copyright 2019 - 2020 ABB. All rights reserved.
3 Maintenance
3.3.7 Inspecting the balancing device
Continued