4 Repair
4.4.4. Replacement of complete lower arm
2913HAC022033-001 Revision: K
© Copyright 2004-2011 ABB. All rights reserved.
2. Remove the upper arm. Detailed in section Replacement of
complete upper arm on page 283.
3. Disconnect and remove the cables from inside
the lower arm.
Release any cable attachments.
Detailed in section Replacement of
cable harness, axes 1-4 on page 251.
4. Apply the lifting eye to the balancing device
and raise to unload the device.
Art. no. is specified in Required
equipment on page 289.
Attachment is shown in the figure
Location of lower arm on page 288.
5. Unload the balancing device in order to make
the piston rod and front ear adjustable when
pulling the front shaft out.
Detailed in section Unloading the
balancing device using hydraulic press
tool. on page 320.
6. Remove the securing screw from the
balancing device front shaft.
Shown in the figure Location of lower
arm on page 288.
7. Apply the shaft puller tool to the shaft through
the hole in the frame.
The shaft has a M20 thread diameter and a 40
mm depth of thread, as shown in the figure to
the right.
Pull the shaft out using the puller tool and the
hydraulic pump.
Art. no. is specified in Required
equipment on page 289.
xx0300000060
NOTE!
The dimension of the shaft puller tool is
M20. Do not mix up with the shaft press
tool used when mounting the shaft.
8. Lower the balancing device until it rests safely
against the bottom of the frame, out of reach
from the lower arm.
9. Move the lower arm backwards to the lowest
position possible.
xx0300000015
10.
CAUTION!
The lower arm weighs 225 kg! All lifting
equipment used must be sized accordingly!
Action Note
Continued
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