4 Repair
4.4.5. Replacement of complete lower arm
2953HAC023082-001 Revision: E
© Copyright 2004-2008 ABB. All rights reserved.
4. Apply the shackle to the balancing device and
raise to unload the weight of the device.
Art. no. is specified in Required
equipment on page 293.
Attachment is shown in the figure
Location of lower arm on page 292.
5. Unload the balancing device in order to make the
piston rod and front ear adjustable when pulling
the front shaft out.
Detailed in sectionUnloading the
balancing device on page 331.
6. Remove the securing screw from the balancing
device front shaft.
Shown in the figure Location of lower
arm on page 292.
7. Apply the puller tool, balancing device shaft to the
shaft of the balancing device, through the hole in
the frame.
The shaft has a M20 thread diameter, as shown
in the figure to the right.
Pull the shaft out using the puller tool and the
hydraulic pump.
xx0300000056
Note! The dimension of the shaft
puller tool is M20. Do not mix up with
the shaft press tool used when
mounting the shaft.
Art. no. is specified in Required
equipment on page 293.
8. Lower the balancing device until it rests safely
against the bottom of the frame.
9. Move the lower arm backwards to the lowest
position possible.
xx0300000015
10. Apply the lifting tool to the lower arm. Art. no. is specified in Required
equipment on page 293!
11. Drain the oil from gearbox 2. Detailed in section Oil change,
gearbox axis 2 on page 185.
12.
CAUTION!
The lower arm weighs 160 kg! All lifting
equipment used must be sized accordingly!
13. Raise the tool to unload the lower arm.
14. Remove the lower arm shaft and all additional
components, as detailed in section Removal,
lower arm shaft on page 301!
Action Note/Illustration
Continued
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