ABB IRB 120 - Page 166

InformationAction
AA BB
CC DD
xx0900000859
Unscrew the attachment screws securing
the lower arm to axis-2 gearbox.
7
Parts:
• A: Swing housing
• B: Gearbox axis 2
• C: Lower arm
• D: Attachment screws (16 pcs)
Remove the lower arm.8
See section
• Replacing axis-3 motor with gear-
box on page 202
Remove axis-3 motor and timing belt.9
Refitting the lower arm
Use this procedure to refit the lower arm.
InformationAction
Clean Room robots: clean the joints that
have been opened. See Replacing parts on
the robot on page 118
1
Check that:
• all assembly surfaces are clean and
without damages.
2
See Replacing the lower arm on page 164.
• Required equipment on page 164
Remove old residues of Loctite from the
assembly surfaces on gearbox axis 2 and
lower arm, using Loctite 7063.
3
Apply flange sealant on the assembly sur-
faces on axis-2 gearbox and lower arm.
4
xx1700000766
Remove the screw from the air release hole
of lower arm housing.
5
Continues on next page
166 Product manual - IRB 120
3HAC035728-001 Revision: N
© Copyright 2009-2017 ABB. All rights reserved.
4 Repair
4.6.1 Replacing the lower arm
Continued