4 Repair
4.6.3. Replacement of motor, axis 3
3433HAC022033-001 Revision: K
© Copyright 2004-2011 ABB. All rights reserved.
Removal, motor
The procedure below details how to remove motor, axis 3.
Action Note
1. Unload the upper arm of the robot
by either:
• Move the robot to a position
where the turning disk rests
against the foundation (rec-
ommended).
• Use a fork lift to rest the
upper arm onto.
• Use lifting slings and an
overhead crane to rest the
upper arm.
• Use a mechanical stop to
rest the upper arm. Fit the
mechanical stop in the
attachment hole (A) with
tightening torque: 115 Nm.
xx0300000051
Fit the mechanical stop to the third and final
attachment hole (A), below the fixed stop (B) in the
upper arm. See the figure above!
2.
DANGER!
Turn off all electric power, hydraulic
and pneumatic pressure supplies to
the robot!
Turn off all electric power and
hydraulic but not the air pressure to
the gearboxes, motors and SMB.
3. Drain the oil from gearbox axis 3. Detailed in section Oil change, gearbox, axis 3 on
page 206.
4. Remove any equipment hindering
access to motor axis 3.
5. Remove the cover on top of the
motor by unscrewing its four
attachment screws.
6. Remove the cable gland cover at
the cable exit by unscrewing its two
securing screws.
Shown in the figure Location of motor on page 341.
Make sure the gasket is not damaged!
7. Disconnect all connectors beneath
the motor cover.
8. Unscrew the motors four
attachment screws and plain
washers .
Shown in the figure Location of motor on page 341.
9. Fit the two guide pins in two of the
motor attachment screw holes.
Art. no. is specified in Required equipment on
page 341.
10. Press the motor out of position by
fitting removal tool, motor to the
remaining motor attachment screw
holes.
Art. no. is specified in Required equipment on
page 341.
Always use the removal tools in pairs!
11. Apply the lifting tool, motor axis 2 ,3,
4 to the motor.
Art. no. is specified in Required equipment on
page 341.
Continued
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