NoteAction
xx1300000789
Remove all but one of the remaining attach-
ment screws and washers that secure the
lower arm to the axis 2 gearbox.
3
Make sure the lifting accessory is holding
the weight of the arm system.
4
Remove the remaining screw, slide the
lower arm out on the guide pins and re-
move the lower arm.
5
Refitting the lower arm
Use these procedures to refit the lower arm.
Preparations before refitting the lower arm
NoteAction
DANGER
Make sure that all supplies for electrical
power and hydraulic pressure are turned
off.
1
Guide pin, M16x150: 3HAC13120-2Fit two guide pins in opposite holes in the
axis-2 gearbox.
Tip
Lubricate the guide pins with some grease
to make the lower arm slide better.
2
Always use guide pins in pairs.
xx1700000055
Continues on next page
340 Product manual - IRB 6790
3HAC063331-001 Revision: B
© Copyright 2019 - 2020 ABB. All rights reserved.
4 Repair
4.5.4 Replacing the lower arm
Continued
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