Control Data Corporation CYBER 180 810 Maintenance And Parts Manual page 104

I
THERMISTOR
TB1
TOP VIEW OF A CABINET
COLUMN WITH ACCESS PANEL OFF
Cll40
MOTOR
BLOWER
ASSEMBLY
BLOWER
MOUNTING
FRAME
AIR
OUTLET
Figure 6-2. Outlet Air Temperature Thermistor and Blower Assembly
BLOWER ASSEMBLY
6-10
TOOLS REQUIRED
Firm platform or ladder, socket wrench.
REMOVAL
1. Remove power from computer cabinet using Computer Cabinet Power Down
procedure steps 1 through 4.
2. Detach access panel on top of cabinet by removing mounting screws
(figure 6-2).
3. Disconnect black, white, and green (ground) wires leading to defective
blower at terminal block inside blower cavity (TBl in all blowers).
4. Remove terminal block(s) from blower mounting frame/bracket.
5. Detach blower mounting frame/bracket from blower housing by removing
hex nuts, and lifting frame off blower housing.
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