ABB Robotics IRB 6790 Product Manual page 272

4 Repair
4.5.1 Replacing the upper arm
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272
Action
Insert all nine M16 screws and 25 of the 27
M12 screws.
Remove the guide pins and fit the two re-
maining M12 screws.
Secure the upper arm by tightening the at-
tachment screws.
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Note
Screws:
M16x50 Stainless Steel (3HAC060786-041)
(9 pcs)
M12x40 Stainless Steel (3HAC060786-031)
(25 of 27 pcs)
Washers:
17x15x3 Stainless Steel (3HAC060866-005)
13x19x2 Stainless Steel (3HAC060866-004)
xx1400000359
xx1300000659
Tightening torque depends on screw dimen-
sion.
Tightening torque, M16: 300 Nm
Tightening torque, M12: 120 Nm
Product manual - IRB 6790
3HAC063331-001 Revision: B