4 Repair
4.5.1. Replacement of lower arm
161 3HAC022032-001 Revision: E
© Copyright 2004-2008 ABB. All rights reserved.
Required equipment
Removal, lower arm
The procedure below details how to remove the lower arm from the robot.
F V-ring between lower arm and gearbox axis 3
Equipment, etc. Spare part no. Art. no. Note
Lower arm
(IRB 4400/45, /60, /L10,
/L30)
3HAC 5955-1
Lower arm
(IRB 4400FS)
3HAC 5956-1
Lower arm
(IRB 4450S)
3HAC 025476-001
V-ring 3HAB 3773-11 2 pcs
On both sides of the lower
arm, in the frame.
Grease 3HAB 3537-1 Used to grease sealings and
bearings.
Standard toolkit 3HAC 17594-1 The contents are defined in
section Standard toolkit on
page 264.
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.
The lower arm weighs 68 kg! All lifting
equipment used must be sized accordingly!
3. Remove the cabling down to axis 1. Detailed in section Removal of cable
harness, axes 4-6.
Continued
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