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4 Repair
4.4.2. Replacement of complete wrist unit
3HAC022033-001 Revision: K
280
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Removal, wrist unit
The procedure below details how to remove the complete wrist unit.
Standard toolkit
-
Content is defined in
section
Calibration Pendulum
toolkit
3HAC15716-1
Complete kit that also
includes operating
manual.
Other tools and
procedures may be
required. See references
to these procedures in
the step-by-step instruc-
tions below.
These procedures include
references to the tools
required.
Circuit diagram
-
See chapter
Circuit
diagram
.
Equipment, etc.
Spare part no.
Art. no.
Note
Action
Note
1.
DANGER!
Turn off all electric power, hydraulic and pneumatic
pressure supplies to the robot!
Turn off all electric power and hydraulic but not the air
pressure to the gearboxes, motors and SMB.
2. Remove all equipment fitted to the turning disk.
3. Turn axis 4 to a position where the
cover, axis 5
faces
upwards.
Shown in the figure
.
4. Remove the cover, axis 5, by unscrewing its
attachment screws.
5.
CAUTION!
The complete wrist unit weighs 200 kg! All lifting
equipment used must be sized accordingly!
6. Fit the
lifting tool, wrist unit
to the two holes on the
sealing surface against the cover, axis 5.
Art. no. is specified in
If required, cut any cable ties
securing the cables in order to fit
the tool.
7. Remove the
rear cover
by unscrewing its attach-
ments.
Shown in the figure
.
8. Disconnect
connector R2.M5/6 at the rear cable
division point
.
Shown in the figure
.
9. Remove all cable attachment inside the upper arm
and at the rear of the robot.
Do not remove the attachments
from the cabling!
10. Slightly raise the wrist unit to unload the screw joint,
facilitating removal of the attachment screws.
Continued
Continues on next page
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