91 / 157V3.3 11.07.2007 KRC-AD-KRC2ed05-BA en
10. Repair
10.3 Exchanging the external fan
Preconditions The robot controller must be switched off and secured to prevent unau-
thorized persons from switching it on again.
Back-up must be completed.
The power cable must be de-energized.
Observe the ESD guidelines.
Procedure 1. Remove the transport safeguard and slacken the fastening screws on the
rear panel.
2. Take off the rear panel.
3. Unscrew the screws of the cable inlet.
4. Unplug the fan connector.
5. Remove the screws from the fan holder.
6. Take off the fan with the holder.
7. Install the new fan.
8. Plug in the fan connector and fasten the cable.
9. Mount the rear cabinet panel and fasten.
10.4 Exchanging the pressure relief plug
Description The pressure relief plug is used to generate an overpressure inside the cabi-
net. This prevents excessive fouling of the cabinet.
Preconditions
The robot controller must be switched off and secured to prevent unau-
thorized persons from switching it on again.
Back-up must be completed.
The power cable must be de-energized.
Fig. 10-2: Exchanging the external fan
1 Fastening screws and trans-
port safeguard
4 Cable inlet
2 Holder with fan 5 Cable to fan connector
3 Fan holder fastening
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