ABB Robotics IRB 6790, Product Manual, Page: 561 / 668

Removing the axis-2 gearbox
Use the procedure to remove gearbox.
Note Action
Guide pin, M12x150: 3HAC13056-2 Remove two attachment screws in opposite
holes and replace them with guide pins.
Tip
Lubricate the guide pins with some grease
to make the gearbox slide better.
1
Guide pin, M12x200: 3HAC13056-3
Always use guide pins in pairs.
xx1300002249
Leave one of the upper attachment screws
and remove the rest. The remaining screw
is used to prevent the gearbox from falling
down. 2
CAUTION
The gearbox weighs 83 kg.
All lifting accessories used must be sized
accordingly.
3
Remove the remaining screw left in the
gearbox. 4
Use two fully threaded attachment screws
(M12) as removal tools to press the gear-
box out of position. 5
Lifting accessory, gearbox: 3HAC046128-
001 Attach the lifting accessory to the gearbox. 6
Use caution and let the gearbox slide out
on the guide pins. 7
Remove the gearbox. 8
Refitting the axis-2 gearbox
Use these procedures to refit the gearbox.
Follow the order of the procedures according to the order they are presented.
CAUTION
When performing these procedures, the cable harness will still be fitted or partly
fitted to the robot. Use extreme caution not to cause any damage to the cable
harness!
Continues on next page
Product manual - IRB 6790 561
3HAC063331-001 Revision: B
© Copyright 2019 - 2020 ABB. All rights reserved.
4 Repair
4.8.2 Replacing the axis-2 gearbox
Continued