Installation guide

Assembly Replacement
B3 Daughterboard/Card Cage Fan
2-75
B3 Daughterboard/Card Cage Fan
Tools Required
• T-10 driver
Removal Procedure
Refer to Figure 2-39 for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to “Outer and Inner Instrument Covers” on page 2-4.
3. Remove the front panel. Refer to “Front Panel” on page 2-6.
4. Remove the four screws (3) that attached the B3 Daughterboard/Card Cage Fan to the chassis using a T-10
driver.
5. Disconnect the B3W1 fan cable from the A23J29.
6. Remove the B3 Daughterboard/Card Cage Fan.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Torque all T-10 screws to 9 in-lbs.
3. Perform the post-repair adjustments and performance tests that pertain to this removal procedure.