ABB IRB 4400 - 45 Product Manual page 142

4 Repair
4.4.2. Replacement of wrist unit
Continued
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.
140
Action
3. Remove the attachment screws and washers
(A).
4. Remove the wrist unit from the upper arm.
Action
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.
Info/Illustration
xx0300000148
Wrist unit on robot version IRB
4400/45, /60, /L30, /S and IRB
4450S.
xx0300000149
Wrist unit on robot version IRB
4400/L10.
Info/Illustration
Part no. is specified in Required
equipment on page 138.
Shown in the figure Location of wrist
unit on page 138.
Continues on next page
3HAC022032-001 Revision: E