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3HAC022033-001 Revision: M
Action
In horizontal position: unload the upper arm
to avoid movement of the axis, with one of
the given methods:
•
move the upper arm to a position
where the turning disk rests against
the foundation (recommended)
•
use a fork lift or an overhead crane
and lifting slings to rest the weight of
the upper arm.
In horizontal position: drain the gearbox,
axis 4.
Remove the cable gland cover at the cable
exit of the motor by unscrewing its two at-
tachment screws.
Remove the cover on top of the motor by
unscrewing its four attachment screws.
Disconnect all connectors beneath the motor
cover.
In order to release the brake, connect the
24 VDC power supply.
CAUTION
The motor weighs 22 kg! All lifting equip-
ment used must be sized accordingly!
Unscrew the motors four attachment screws
and plain washers.
Fit the two guide pins in two of the motor
attachment screw holes.
If required, press the motor out of position
by fitting removal tool, motor to the motor
attachment screw holes.
Fit the lifting tool to the motor.
Lift the motor to get the pinion away from
the gear and disconnect the brake release
voltage.
Remove the motor by gently lifting it straight
out.
© Copyright 2007-2013 ABB. All rights reserved.
4.6.4 Replacement of motor, axis 4
Note
Detailed in section
Draining, oil, gearbox
axis 4 on page
206.
Shown in the figure
Location of motor on
page
333.
Make sure the gasket is not damaged!
Connect to connector R2.MP4
•
+: pin 2
•
-: pin 5
Shown in the figure
Location of motor on
page
333.
Art. no. is specified in
Required equipment
on page
333.
Always use the removal tools in pairs!
Choose the correct lifting tool:
•
lifting tool, motor axis 1, 4 and 5, if
the upper arm is positioned vertic-
ally.
•
lifting tool, motor axis 2, 3 and 4, if
the upper arm is positioned hori-
zontally.
Art. no. is specified in
Required equipment
on page
333.
Make sure the motor pinion is not dam-
aged!
Continues on next page
4 Repair
Continued
335
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