ABB IRB 2400/L, Product Manual, Page: 102 / 227

4 Repair
4.4.2. Replacement of wrist IRB 2400L
3HAC022031-001 Revision: C 100
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Removal, wrist unit
The procedure below details how to remove the wrist from the robot upper arm.
The wrist, which includes axes 5 and 6, is a complete unit comprising drive units 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 to carry out only the following servicing and repair work on
the wrist.
Refitting, wrist unit
The procedure below details how to refit the wrist unit to the robot.
Action Note/Illustration
1.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
2. Remove the oil plug from the wrist and drain
it from all the oil.
x0300000104
A. Screw
B. Oil plug (air inlet)
C. Wrist unit
3. Undo the screws and remove the wrist.
Action Note
1.
DANGER!
Turn off all electric power, hydraulic and pneumatic
pressure supplies to the robot!
2. Clean the surface of the tubular shaft.
3. Apply Loctite 574 all around.
4. Fit the wrist, tighten the attachment screws. Tightening torque: 8.3 Nm +10%.
5. Screw the clamping sleeves together using screws
to a torque of 5.7 Nm.
Continued
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