Tektronix TLA7XM, Руководство пользователя

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Mainframe Removal and Installation Procedures
TLA721 Benchtop & TLA7XM Expansion Mainframe Service Manual
6- 7
Blower Assembly
You will need a Phillips #1 screwdriver and an Allen wrench to complete these
procedures.
To remove the blower assembly, refer to Figures 6--2, 6--3 and Figure 6--4 while
performing the following steps:
1.
From the back of the chassis, loosen the five captive screws including the
safety ground (refer to Figure 6--2 for the screw locations).
2.
Loosen the four 8-32 hex screws (see Figure 6--4 on page 6--9) under the
mainframe so that you can easily remove the blower assembly.
3.
Remove the cable cover.
4.
Unplug the blower cable and set the blower assembly aside on a clean
working surface.
5.
To remove the blower, remove the ten screws with (the Allen wrench)
holding the shroud part of the blower assembly to the chassis part of the
assembly. Set the shroud aside. There are three screws on each side and four
on the bottom. See Figure 6--4.
6.
Remove the two sheet metal screws at the top of the blower.
7.
Remove the four screws that hold the blower to the chassis part of the blower
assembly.
8.
For convenience, replace the two sheet metal screws from step 6 onto the top
of the blower.
Install the blower assembly by following the removal procedures in reverse
order.
NOTE
. When reconnecting the blower cables to the chassis, verify that you
connect the blower cable to J8, 1/BLOWER.
Removal
Installation