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36 Replacing Cabinet Subassemblies
Installing the Fan Assembly
To keep the system operational while a faulty fan unit is being repaired, you
should install a spare. When the faulty fan is returned from the repair depot, it
should be stored as the spare. Ensure that the replacement unit has the same
part number as the unit being replaced.
This procedure assumes that the door assembly has been removed and not yet
reinstalled. To replace the fan assembly, proceed as follows:
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10) Tighten the 1/4-inch hexagonal screw on the fan grill mounting bracket.
Practice 450-1011-501
For your protection and the protection of the equipment, make sure
the system is powered off for this procedure.
Connect the ground wire from the metal rear panel on the cabinet to the
fan as shown in Fig. 4-1. Use the screw removed in Step 6 of
'Removing the Fan Assembly' and the 1/4-inch nutdriver.
Align the screw holes on the fan assembly with those on the rear panel.
When connecting the fan assembly to the cabinet, ensure that you
tighten the screws equally or the assembly may flex and contact the
fan blade.
Using the 1/4-inch nutdriver, insert a hexagonal screw in each of the
upper corners of the fan assembly and in the lower corner nearest the
side of the cabinet.
Connect the receptacle on the fan power cable to the plug on the fan
assembly.
Reinstall the fan grill mounting bracket on the fan units with the two
remaining 1/4-inch hexagonal screws.
Insert the pin of the hinge plate into the hole at the base of the door.
Fasten the hinge plate to the bottom of the cabinet using the 5/64-inch
Allen wrench.
Insert the hinge pin into the hole at the top of the rear door.
Maneuver the top of the door and the fan grill cover so that the top
hinge pin is inserted into the hole in the fan grill cover, then push the
door and fan grill cover into position.
- WARNING -
- CAUTION -
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