4 Repair
4.4.4. Replacement of complete lower arm
3HAC020993-001 Revision: G262
© Copyright 2004-2008 ABB. All rights reserved.
9. Disconnect the power supply, if used.
10. Secure the lower arm with 16 of the
18attachment screws and washers in gearbox,
axis 2.
18 pcs: M16 x 50, tightening torque:
300 Nm.
Reused screws may be used,
providing they are lubricated as
detailed in section Screw joints on
page 384 before fitting.
Shown in the figure Internal
components, lower arm on page 256!
11. Remove the guidings and secure the two
remaining screws as detailed above!
12. Refit the lower arm shaft and all additional
components, as detailed in section Refitting,
lower arm shaft on page 267!
13. Remove the lifting tool from the lower arm.
14. Refit and restore the balancing device. Detailed in section Refitting, balancing
device on page 290.
15. Refit the upper arm. Detailed in section Refitting, upper arm
on page 253.
16. Perform a leak-down test. Detailed in section Performing a leak-
down test on page 200.
17. Refill the gearbox with oil. Detailed in section Oil change, gearbox
axis 2 on page 160.
18. Refit and reconnect all cables inside the lower
arm.
Resecure any cable attachments.
Detailed in section Refitting, cable
harness, axes 1-4 on page 221.
19. Recalibrate the robot! Calibration is detailed in a separate
calibration manual, enclosed with the
calibration tools.
General calibration information is
included in section Calibration
information on page 365.
20.
DANGER!
Make sure all safety requirements are met
when performing the first test run. These are
further detailed in section DANGER - First test
run may cause injury or damage! on page 38.
Action Note/Illustration
Continued
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