Take care of ESD handling 3.0 Handling ESD-sensitive parts
NOTE
Use the same procedure for power down and removing the aluminum cover and
cables for teach pendant as in chapter Replacement of teach pendant
How to replace current distributor in controller box:
1. Current distributor is placed on top of the rack.
2. Before dismounting the current distributor, mark and disconnect the cables from the circuit
board.
3. Replace current distributor with new one.
4. Reconnect the wires for the current distributor.
5. Re-install controller module in reverse order and connect the 2 wires for the fan and cables
for the teach pendant.
6. Carefully put back the aluminum cover plate, make sure to mount it correctly and fix it in
place with the 5 screws.
7. Connect power and verify that teach pendant functions correctly.
UR3 78 Service Manual
5.Service and Replacement of Parts
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