4 Repair
4.4.2. Replacement of complete lower arm
3HAC023637-001 Revision: B122
Removal, lower arm
The procedure below details how to remove the complete lower arm.
Locking liquid Loctite 574
Standard toolkit The contents are defined in section
Standard toolkit in the Product
manual, reference information!
Other tools and procedures
may be required. See
references to these
procedures in the step-by-
step instructions below.
These procedures include references
to the tools required.
Equipment Spare part no. Note
Action Note/Illustration
1.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
2. Remove the complete upper arm. Detailed in section Removal,
complete upper arm on page 118.
3. Remove the VK-covers.
Caution! Be careful not to damage the cabling
and cable bracket inside the lower arm when
removing the middle VK-cover!
The figure to the right shows the space
underneath the cover. The gray areas are safe for
insertion of a tool that may be inserted with a
maximum depth of 20 mm!
Shown in the figure Location of
lower arm on page 121.
xx0400001247
4. Pull down the cabling through the lower arm and
pull it out.
5.
CAUTION!
The lower arm weighs 20 kg! Use a suitable lifting
device to avoid injury to personnel!
6. Fit the lifting device to the lower arm to secure the
weight of the arm.
7. Unscrew the 12 attachment screws and remove
the single washer.
8. Gently pull out the cabling while lifting away the
lower arm. Be careful with the connectors, they
are sensitive to damage!
9. Check the sealing ring. Replace it if damaged. Spare part no. is specified in
Required equipment on page 121.
Continued
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