ABB IRB 4600 - 20/2.50, Product Manual

Page: 315 / 374

Note Action
WARNING
The cable harness is still installed on the
robot! Make sure not to damage the cable
harness or the cable brackets on the ro-
bot.
Remove the upper arm from the lower arm
and leave it hanging in the air.
CAUTION
When the upper arm no longer is attached
to the robot, the armhouse has a tendency
to drop down a little. In order to prevent this
is to rise the front end of the upper arm a
little before removing the attachment screws
securing the upper arm.
11
CAUTION
The gearbox weighs 23 kg.
All lifting accessories used must be sized
accordingly!
12
Always use guide pins in pairs! Remove two attachment screws diagonally
located and insert guide pins. 13
See the figure in:
• Location of gearbox axis 3 on
page 311
Remove the remaining attachment screws
that secures the gearbox.
14
Note
There will be some surplus oil in the gear-
box. Place some absorbant cloth or similar
under the gearbox.
15
Note
Always use removal tools in pairs diagon-
al to each other.
Slide the gearbox carefully out onto the
guide pins and lift it away.
If necessary, use a pair of screws to push
out the gearbox.
CAUTION
Remaining oil will drain out from the gear-
box cavity when the gearbox is lifted out.
16
Refitting the gearbox axis 3
Use this procedure to refit the gearbox.
Note Action
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the robot
working area.
1
Continues on next page
3HAC033453-001 Revision: H 315
© Copyright 2009-2013 ABB. All rights reserved.
4 Repair
4.8.3 Replacing gearbox axis 3
Continued