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ERVICE
M
ANUAL
CONFIDENTIAL
02.9631.0010
15 Jan 98
IRIS BAFFLE
2BTB7
FRONT APERATURE PLATE
REAR DOOR AND COVER ASSEMBLY
Figure 3-23. Iris Baffle Assembly and Front Aperture Plate Removal and Replacement
a. At front aperture plate, remove four 6-32x5/16"PPB screws
that secure plate to side rails and remove front aperture
plate.
b. At iris baffle, remove two 6-32x5/16"PPB screws that
secure iris baffle to side rails and remove iris baffle.
Step 11.
Remove cable side rail cover.
a. At cable side rail cover, remove three 6-32x5/16"PPB
screws that secure cover to side rail.
b. Remove one 6-32 KEPS nut that secures tie wrap saddle
holding yoke cables to cable side rail and remove saddle
from threaded standoff.
c. Using diagonal cutters, cut tie wrap holding cable to saddle.
d. Using 5/16 inch nut driver, remove ground wire ring
terminal from threaded standoff.
Step 12.
Open chassis lid and remove fan housing.
a. At chassis lid, remove four 4mm x 10mm PPB screws that
secure fan with fan housing.
b. At chassis lid, remove six 6-32x5/16"PPB screws that
secure lid to chassis and open lid.
c. At fan housing, remove 14, 4-40x5/16"PFB screws that
secure cover and remove housing.
d. Allow fan to hang free.