ABB IRB 120 - Page 159

InformationAction
xx0900000851
Unscrew the attachment screws securing
the lower arm plate to the motor cover.
13
Parts:
• A: Cable harness
• B: Lower arm plate
• C: Motor cover
• D: Attachment screws (4 pcs)
• E: Holes for attachment screws (4
pcs)
• F: Cable guide
Pull out the cable harness through the upper
arm housing.
14
Secure the upper arm by holding it firmly.15
See the figure in:
• Location of upper arm on page 155
Unscrew the attachment screws securing
the upper arm with wrist to gearbox axis 3.
16
Remove the upper arm.17
Refitting the upper arm
Use this procedure to refit the upper 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 upper arm on page 155.
• Required equipment on page 156
Remove old residues of Loctite from the
assembly surfaces on gearbox axis 3 and
upper arm, using Loctite 7063.
3
Apply Loctite 574 on the assembly surfaces
on gearbox axis 3 and the upper arm.
4
Continues on next page
Product manual - IRB 120 159
3HAC035728-001 Revision: N
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4 Repair
4.5.1 Replacing the upper arm
Continued