ABB Robotics IRB 6790 Product Manual page 436

4 Repair
4.7.2 Replacing the axis-2 motor
Continued
Deciding calibration routine
Decide which calibration routine to be used, based on the information in the table.
Depending on which routine is chosen, action might be required prior to beginning
the repair work of the robot, see the table.
1
Removing the motor
These procedures describes how to remove the motor.
Preparations before removing the axis-2 motor
1
2
3
4
Continues on next page
436
Action
Decide which calibration routine to use for
calibrating the robot.
• Reference calibration. External cable
packages (DressPack) and tools can
stay fitted on the robot.
• Fine calibration. All external cable
packages (DressPack) and tools
must be removed from the robot.
If the robot is to be calibrated with refer-
ence calibration:
Find previous reference values for the axis
or create new reference values. These val-
ues are to be used after the repair proced-
ure is completed, for calibration of the ro-
bot.
If no previous reference values exist, and
no new reference values can be created,
then reference calibration is not possible.
If the robot is to be calibrated with fine
calibration:
Remove all external cable packages
(DressPack) and tools from the robot.
Action
Decide which calibration routine to use,
and take actions accordingly prior to begin-
ning the repair procedure.
Drain the oil from the gearbox.
Jog the robot to the calibration position.
DANGER
Secure the weight of the lower arm with a
lock screw, before releasing the brakes on
the axis-2 motor as well as before removing
the axis-2 motor or the axis-2 gearbox.
© Copyright 2019 - 2020 ABB. All rights reserved.
Note
Follow the instructions given in the refer-
ence calibration routine on the FlexPendant
to create reference values.
Creating new values requires possibility to
move the robot.
Read more about reference calibration for
Axis Calibration in Reference calibration
routine on page 624.
Note
See Draining the axis-2 gearbox on
page 138.
Product manual - IRB 6790
3HAC063331-001 Revision: B