4 Repair
4.8.1. Replacement of gearbox unit, axes 1-2-3
221 3HAC022032-001 Revision: E
© Copyright 2004-2008 ABB. All rights reserved.
Refitting, gearbox unit
The procedure below details how to refit the gearbox unit, including motors, to the robot.
11. Place the assembly on a level surface
and support it at position A, according to
the figure on the right.
Make sure the unit is stable and rests
securily before removing the lifting
equipment.
Note! The figure shows the IRB 4400
but the procedure for the IRB 4450S is
the same.
xx0300000173
• B: Approximately 200 mm (IRB
4400 all models)
• B: Approximately 230 mm (IRB
4450S)
12. Remove the bottom plate from the base. Shown in the figure Refitting, complete
arm system on page 131.
13. Move the lifting straps to the base and
unload its weight.
14. Remove the attachment screws and
washers, gearbox unit.
Shown in the figure Refitting, cabling axes
1-3 on page 119.
15. Remove the base from the gearbox unit.
16. Remove the sealing from the gearbox
unit.
Action Info/Illustration
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.
Continued
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