ABB IRB 8700 Series Product Manual page 269

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Product manual - IRB 8700
3HAC052853-001 Revision: F
Action
Release the brakes on axis-2 to allow the
lower arm to position according to the lift-
ing force applied from the overhead crane.
This eliminates any strain in the upper arm
shafts.
Remove the brake release from R2.MP2.
Remove grease and other contamination
from the axis-2 and axis-3 shaft ends and
around the KM nuts, on both sides.
Use a Sleeve KM nut to release the torque
on one of the KM nuts.
Note
Do not remove this KM nut at this point.
Only release the torque.
Use the Sleeve KM nut, open and remove
the KM nut on the other side.
Note
Make sure not to lose gamma sealing and
sealing ring.
Note
Continue the removal on the same side
until the shaft is removed completely.
Leave the other shaft fitted for now!
© Copyright 2015-2018 ABB. All rights reserved.
4.5.1 Replacing the upper arm
Note
xx1500002725
Sleeve KM nut D=152 L=220: 3HAC038174-
067
xx1500002726
xx1500002727
Continues on next page
4 Repair
Continued
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