4 Repair
4.4.4. Replacement of upper arm
2733HAC026876-001 Revision: F
© Copyright 2007-2010 ABB. All rights reserved.
Required equipment
Removal, upper arm
The procedure below details how to remove the upper arm.
Equipment Art. no. Note
Sealing, axis 2/3 3HAC17212-1 Always use a new sealing when
refitting the upper arm!
Washer, axis 3 (3 pcs) 3HAC12703-1 To be replaced if damaged.
Guide pins, sealing axis 2/3 80 mm 3HAC14628-1 For guiding "Sealing, axis 2/3".
Guide pins, sealing axis 2/3 100 mm 3HAC14628-2 For guiding "Sealing, axis 2/3".
Power supply - 24 VDC, max 1,5A
For releasing the brakes.
Rotation tool 3HAC17105-1 Used to rotate the motor shaft
beneath the motor cover, when
brakes are released with 24 VDC
power supply.
Lifting eye VLBG M12 3HAC16131-1
Lifting device, upper arm 3HAC15994-1
Lifting tool (chain) 3HAC15556-1 To be used together with lifting
eye, M12 and lifting device, upper
arm.
Standard toolkit - The content is defined in the
section Standard toolkit on page
409.
Other tools and procedures may be
required. See references to these
procedures in the step-by-step instruc-
tions below.
These procedures include
references to the tools required.
Action Note
1. Remove all equipment fitted to turning disk.
2. Move the upper arm to a horizontal position.
Rotate axis 4 so that the attachment hole for lifting
eye is faced upwards!
Shown in the figure Location of
upper arm on page 272.
3. Rotate axis 5 to position +90°
4.
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.
5. Upper arm including wrist unit:
Fit the lifting eye, VLBG M12 to the attachment hole
for lifting eye on the upper arm tube.
Art. no. is specified in Required
equipment on page 273.
Shown in the figure Location of
upper arm on page 272.
Continued
Continues on next page