4 Repair
4.4.2. Replacement of wrist unit
3HAC022032-001 Revision: E140
© Copyright 2004-2008 ABB. All rights reserved.
Refitting, wrist unit IRB 4400/45, /60, /L30, /S and IRB 4450S
The procedure below details how to refit the wrist unit to robot versions IRB 4400/45, /60, /
L30, /S and IRB 4450S.
This component includes a complete unit comprising motors and gearboxes. It is a
replacement unit of complex design and should not normally be serviced on-site. Instead it
should be sent to ABB for service etc.
ABB recommends its customers carry out only the following servicing/repair work on this
unit.
3. Remove the attachment screws and washers
(A).
xx0300000148
Wrist unit on robot version IRB
4400/45, /60, /L30, /S and IRB
4450S.
xx0300000149
Wrist unit on robot version IRB
4400/L10.
4. Remove the wrist unit from the upper arm.
Action Info/Illustration
Action Info/Illustration
1.
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
For Foundry Prime robots: Do not turn off
the air pressure to motors and SMB.
2. Lubricate the o-ring groove in order to
position the o-ring.
Fit the o-ring to the wrist.
Part no. is specified in Required
equipment on page 138.
Shown in the figure Location of wrist
unit on page 138.
Continued
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