Airflow Sensors (Pn 12-36060-01) - DEC Rackmount 7000 AXP Installation And Owner's Manual

Removal and Replacement
5.3.13 Airflow Sensors (PN 12-36060-01)
The XMI chassis contains two airflow sensors located at the rear of the card cage
between the fans and the card cage.
Perform the following procedure to remove the airflow sensors:
Before performing the following removal and replacement
procedures, switch off the circuit breakers on the back of the
XMI chassis and on the power controller.
1. Extend the XMI chassis for service (see Section 5.3.2).
2. Remove the bottom cover (see Section 5.3.4).
Note the position of the airflow sensor and the orientation of the
sensor hole in respect to the card cage before removing the old
unit. Replace this with a new unit positioned in exactly the same
configuration as the original unit.
3. Carefully note the position and orientation of the sensors in relation to the
card cage.
4. Disconnect the airflow sensor cable connector (see Figure 5–29).
5. Loosen the screws that secure the airflow sensors in their brackets (see
Figure 5–29).
6. Slide the airflow sensors from the brackets that secure them to the rear of the
card cage (see Figure 5–29).
To replace the airflow sensors, reverse steps 1 through 6.
5–54 Removal and Replacement
WARNING
NOTE