ABB Robotics IRB 6790 Product Manual page 378

4 Repair
4.6.1 Replacing spherical roller bearing, link ear
Continued
2
3
Unloading a new spare part, balancing device
1
2
Refitting the front shaft of the balancing device
1
2
Continues on next page
378
Action
Fit a lifting shackle to the balancing device.
Fit the lifting accessory to the shackle and
raise to unload the weight.
Action
DANGER
Do not use the Distance tool: 3HAC030662-
001 to unload or restore the pressure of
the balancing device spring unit! This tool
is only used to lock the spring unit in a
compressed position, after axis-2 has been
jogged to -30° or +30°. Fitting and removal
of the tool shall only be done with axis-2 in
this position!
To unload or restore a new balancing
device or if the spring unit of the balancing
device cannot be compressed by jogging
the robot, only use the Hydraulic press tool,
balancing device (3HAC020902-001).
Before a new spare part balancing device
is fitted, the springs must be unloaded us-
ing the Hydraulic press tool, balancing
device 3HAC020902-001.
Action
Turn the power to the robot on temporarily.
Use caution and jog the robot to the calibration
position (if not already done).
© Copyright 2019 - 2020 ABB. All rights reserved.
Note
Lifting shackle: SA-10-8-NA1
xx1300000661
Lifting accessory (chain): 3HAC15556-1
Note
How to unload a new balancing device (a
spare part, not yet fitted to the robot) is
described in Unloading the balancing
device on page 411.
Note
Product manual - IRB 6790
3HAC063331-001 Revision: B