4 Repair
4.5.3. Replacement of push button unit
1433HAC023637-001 Revision: B
Required equipment
Removal, push button unit
The procedure below details how to remove the push button unit from the robot.
Equipment Spare part no. Note
Push button unit 3HAC 020967-001 Includes brake release board and push buttons.
Gasket, base cover 3HAC 022047-001
Centering piece 3HAC025815-001 Fitted to the push button unit in order to align it
correctly.
Replace if damaged.
Standard toolkit The contents are defined in section Standard
toolkit on page 194, in part 2 of the Product
manual.
Action Note/Illustration
1.
DANGER!
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
2. Remove the push button guard (A) from the
base.
The guard must be removed to ensure
a correct refitting of the push button
unit.
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3. Remove the centering piece (B) from the push
button unit.
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4. Remove the base cover from the robot. Shown in the figure Location of push
button unit on page 142.
5. Disconnect all the connectors from the brake
release board.
6. Unscrew the four hexagon nuts on the SMB
unit enough to enable lifting the unit.
Do not remove the nuts.
Shown in the figure Push button unit on
serial measurement unit on page 142.
Continued
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