Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 195)

Chapter 6: Module/Unit Replacement PC NC Maintenance Manual
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4. Place the unit on a flat, steady surface.
5. Remove the tie wrap (or any other kind of strain relief) holding
the SERVO ON/SHUT DOWN cable assembly wires.
6. Remove the SERVO ON/SHUT DOWN connector from the con-
nector plate by pushing the side connector lock tabs towards the
center of the connector and pulling the connector out. If neces-
sary, carefully use a small, flat screwdriver to avoid damage to the
locking tabs.
7. Loosen the six front bezel-mounting screws and carefully remove
the bezel assembly from the CRT display unit.
8. Place the bezel assembly on a flat, steady surface.
9. Remove the switch assemblies from the bezel. First, firmly pull
the contact blocks from the switch actuator (the use of a disman-
tling tool is not necessary because the damaged switches are
being replaced). Then remove actuators from bezel by loosening
lock nuts and pulling actuator out from the bezel/lens side.
Install the unit switches as follows:
1. Install each new switch assembly on its original location on the
bezel. First, insert switch actuator/lens assemblies and tighten the
actuator lock nuts. Then insert the contact block firmly into the
actuator. Make sure that both switches are working properly.
2. Attach the front bezel assembly to the display unit and tighten the
six mounting screws. To prevent damage to the bezel, do not
over-tighten.
3. Attach the SERVO ON/SHUR DOWN connector in the connec-
tor plate by inserting the connector in the opening. Ensure that
the connector is securely locked and cannot be removed by pull-
ing.
4. Insert the touch screen flat cable in the controller board, in its
original location.
5. Add the tie wrap (or original strain relief) to hold the SERVO
ON/SHUT DOWN cable assembly wires as in the original assem-
bly.