4 Repair
4.5.3. Replacement of parallel arm / Replacement of bearing
169 3HAC022032-001 Revision: E
© Copyright 2004-2008 ABB. All rights reserved.
Required equipment
Removal, parallel arm/bearing
The procedure below details how to remove the parallel arm from the robot during repair
work. It also details how to remove the bearing from the parallel arm in order to replace it.
Caution!
The parallel arm weighs 70 kg (robot version IRB 4400/45 and IRB 4450S) or 115 kg (robot
version IRB 4400/60, IRB 4400/L30, IRB 4400/L10, IRB 4400/S)! All lifting equipment
used must be dimensioned accordingly!
Equipment, etc.
Spare part
no.
Art. no. Note
V-ring sealing 3HAB 3732-11
Groove ball bearing 3HAC 10905-1
Sealing ring 3HAB 3749-1
Grease 3HAB 3537-1 Used to lubricate the
bearings and sealings.
Standard toolkit 3HAC 17594-1 The contents are defined in
section Standard toolkit on
page 264.
Lifting tool 3HAB 1412-1 Used to lift the parallel arm.
Other tools and
procedures may be
required. See references
to these procedures in the
step-by-step instructions
below.
These procedures include
references to the tools
required.
Calibration Pendulum
Instruction
General calibration
information is included in
section Calibration
information on page 235.
Action Info/Illustration
1.
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. Remove the tie rod. Detailed in Replacement of tie rod on
page 164.
3. Fit the lifting tool to the parallel arm.
Unload the arm with a crane.
Art. no. is specified in Required
equipment on page 169.
Continued
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