4 Repair
4.4.2. Replacement of wrist unit
3HAC022032-001 Revision: E138
© Copyright 2004-2008 ABB. All rights reserved.
4.4.2. Replacement of wrist unit
Location of wrist unit
The wrist unit is located in the upper arm as shown in the figure below. (The illustration shows
the IRB 4400.) Removal/refitting procedures differs depending on robot version.
A more detailed view of the component and its position may be found in chapter Foldouts in
the Product manual, reference information.
xx0300000150
Required equipment
A Wrist unit
B O-ring
C Sealing surface between wrist unit and upper arm tube
D Attachment screws and washers
Equipment, etc.
Spare part
no.
Art. no. Note
Wrist unit
(IRB 4400/45, /60, /L30, /S
and IRB 4450S)
3HAB 8271-1
Wrist unit
(IRB 4400/L10)
3HAB 9398-1
O-ring
(IRB 4400/45, /60, /L30, /S
and IRB 4450S)
2152 2012-541
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