Follow the order of the separate procedures according to the order they are
presented.
Preparations before refitting the axis-3 gearbox
NoteAction
DANGER
Make sure that all supplies for electrical
power and hydraulic pressure are turned
off.
1
CAUTION
The axis-3 gearbox weighs 56 kg.
All lifting accessories used must be sized
accordingly.
2
Lifting accessory, gearbox: 3HAC046128-
001
Apply the lifting accessory to the gearbox.3
Lift the gearbox so that it rests on the side.4
Remove the o-ring and wipe it clean.
Note
This shall also be done on a new spare
part.
5
O-ring, NBR: 3HAB3772-150.Check the condition of the o-ring.6
Replace if damaged.
Wipe clean the contact surfaces, both on
the gearbox and in the upper arm.
7
Also wipe clean the o-ring groove.
Lubricate the o-ring with some grease.8
Fit the o-ring in the groove.9
Guide pin, M12x150: 3HAC13056-2Fit two guide pins in opposite holes.
Tip
Lubricate the guide pins with some grease
to make the gearbox slide better.
10
Always use guide pins in pairs.
Lift the gearbox to the upper arm and let it
rest on the guide pins.
11
Continues on next page
Product manual - IRB 6790 591
3HAC063331-001 Revision: B
© Copyright 2019 - 2020 ABB. All rights reserved.
4 Repair
4.8.3 Replacing the axis-3 gearbox
Continued
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