4 Repair
4.4.4. Replacement of complete lower arm
3HAC020993-001 Revision: G260
© Copyright 2004-2008 ABB. All rights reserved.
Refitting, lower arm
The procedure below details how to refit the lower arm.
9. Move the lower arm backwards to the lowest
position possible.
xx0400001028
10. Apply the lifting tool to the lower arm. Art. no. is specified in Required
equipment on page 258!
11. Drain the oil from gearbox 2. Detailed in section Oil change,
gearbox axis 2 on page 160.
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 265!
15. Remove the attachment screws and washers that
attach the lower arm to the gearbox axis 2.
Shown in the figure Internal
components, lower arm on page 256!
16. Lift the lower arm and place it on a secure
surface.
17. Remove the bearing and thrust washer from the
shaft hole in the lower arm.
Shown in the figure Internal
components, lower arm on page 256!
On reassembly a new bearing must
be used!
Action Note/Illustration
Action Note/Illustration
1.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
For Foundry Prime robots: Do not turn off the
air pressure to motors and SMB.
2. Fit a new VK-cover on a new lower arm or
replace the existing if damaged.
Part no. is specified in Required
equipment on page 258!
Continued
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