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Chassis Fan Replacement Guide

10

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8.

Insert three of the four screws with the flat washers closest to the fan 
and the split spring washers closest to the screw heads. The fourth 
screw does not use washers, but instead anchors the thermistor. Insert 
the fourth screw through the thermistor clip hole and orient the 
thermistor as shown in Figure 8.

Figure 8.  

Thermistor Location and Orientation

9.

Tighten the screws to between 5.7 lb · in. minimum torque and 
6.7 lb · in. maximum torque.

10. Place the fan access panel over the opening. Insert and tighten the 

access panel screw to between 3.0 lb · in. minimum torque and 
3.6 lb · in. maximum torque.

Caution

Reorient the chassis to an upright position and ensure there are no loose parts 

prior to plugging in the power cord. 

1

Grommet

2

Thermistor and Clip

2

1

Содержание PXI Series

Страница 1: ...tter revision Before replacing the fan be sure to check the model and assembly numbers on the back of your PXI chassis Replace the fan only if the model and assembly numbers are on the following list...

Страница 2: ...embly numbers in parentheses The x denotes the assembly letter revision Before replacing the fan be sure to check the model and assembly numbers on the back of your PXI chassis Replace the fan only if...

Страница 3: ...wn Complete the following steps to replace the fan refer to the previous figure for parts locations 1 Locate the fan access panel on the bottom of the chassis Remove the access panel screw and the acc...

Страница 4: ...hassis Fan Replacement Guide 4 ni com 4 Disconnect the fan cable from the inline connector The connector is shown in Figure 2 Figure 2 Fan Cable Inline Connector 1 Fan 2 Fan Cable Inline Connector 2 1...

Страница 5: ...r flow direction is into the chassis so the plastic grill and label on the fan should face toward the PXI card cage Place the screen below the fan see Figure 1 for screen location Ensure that the loos...

Страница 6: ...he thermistor wire as shown in Figure 4 before replacing the fan access panel 8 Place the fan access panel over the opening Insert and tighten the access panel screw to between 3 0 lb in minimum torqu...

Страница 7: ...ss the fan Refer to the following steps for installation and removal instructions Figure 5 PXI and PXI Express Chassis Part Locations Chassis Shown Upside Down 1 Washers x3 each 2 Fan Screw x4 3 Fan A...

Страница 8: ...Figure 5 that fasten the fan Be careful not to lose the screws or washers If you lose a screw replace it with an M3 0 5 35 mm pan head Phillips screw 3 Remove the thermistor and fan guards 4 Remove t...

Страница 9: ...square slot oriented as shown in Figure 7 The fan flow direction is into the chassis so the plastic grill on the fan should face toward the PXI card cage Figure 7 Square Slot on Fan Housing 7 Place th...

Страница 10: ...hole and orient the thermistor as shown in Figure 8 Figure 8 Thermistor Location and Orientation 9 Tighten the screws to between 5 7 lb in minimum torque and 6 7 lb in maximum torque 10 Place the fan...

Страница 11: ...heir respective companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the Nation...

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