4 Repair
4.4.3. Replacement of complete upper arm
3HAC022033-001 Revision: K286
© Copyright 2004-2011 ABB. All rights reserved.
2. Fit the two guide pins, sealing axis 2/3 in two of the
attachment screw holes on gearbox 3, see figure to
the right.
Guide the new sealing, axis 2/3 into position with
the guide pins, on gearbox 3.
Always use a new sealing when
reassembling!
Art. no. is specified in Required
equipment on page 284.
xx0200000125
A. Holes for guide pins in the
gearbox.
3.
CAUTION!
The complete upper arm weighs 450 kg without any
additional equipment fitted! Use a suitable lifting
device to avoid injury to personnel!
4. Fit the lifting eye to the attachment hole in the wrist
unit.
Shown in the figure Location of
upper arm on page 283.
Art. no. is specified in Required
equipment on page 284.
5. Fit one of the pieces included in the lifting device,
upper arm to the attachment holes for lifting device,
upper arm using the included attachment screws.
Shown in the figure Location of
upper arm on page 283.
Art. no. is specified in Required
equipment on page 284.
6. Run the lifting chain from the rear lifting point
through the overhead crane hook, through the
hoisting block to the lifting eye in the front.
Art. no. is specified in Required
equipment on page 284.
7. Use the hoisting block to adjust the tension in the
chain in order to lift the upper arm completely level.
8. Lift the upper arm and move it to its mounting
position.
9. Fit the three washers to be placed beneath the
attachment screws.
Make sure the washers are not
scarred or pitted in the surface
facing the screw heads. If both
washer sides are damaged,
replace the washer. Art. no. is
specified in Required equipment
on page 284.
Action Note/Illustration
Continued
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