Lamphouse Assembly.

TM 11-2323

(5) To reinstall the glass condenser lens, perform the procedures

in (1) through (4) above in reverse order.

Note. When the glass condenser lens or its mounting is disturbed,

optical alignnient (par. 59) of the projector must be checked.

e. Lamphouse Assembly.

(1) Loosen the captive screw at the top center of the rear door;

open the rear door (fig. 7.1) of the projector housing.

(2) Raise the latch above the lamphouse door, and open the lamp-

house door.

(3) Remove the projection lamp from the socket by turning it

counterclockwise.

(4) Raise the latch at the top of the heat-asorbing filter and

gently lift the heat-asorbing filter up and out of the retaining

strip at. the. bottom of the heat-absorbing filter retaining

frame.

(5) Close the lamphouse door.

(6) Rack the projection head up and off the support post, and

set it, carefully to one side.

(7) Carefully lay the projector housing on its side on a level

working surface.

(8) Remove the bottom cover mounting screws (fig. 29.3) and

take off the bottom cover.

(9) Hold the double strap nut (on top of the lamphouse mounting

bracket) with the fingers of one hand, and remove the two

lower lamphouse mounting bolts at the bottom of the lamp-

house assembly with the other hand.

Note. W h e n e v e r t h e f o u r l a m p h o u s e m o u n t i n g b o l t s h a r e b e e n

loosened, alignment of the projection lamp with reference to the glass

condenser lens must be rechecked (par. 59f ) .

(10) Lift out the double strap nut and lay it to one side, along

with the lamphouse adjustment strip.

(11) Loosen the two upper lamphouse mount bolts until they

can be turned with the fingers.

Caution: Remove the two upper lamphouse mounting

bolts and the lamphouse adjustment strip.

(12) With the fingers of one hand, hold the upper double strap

nut firmly so that the lamphouse assembly will be supported

when the lamphouse mounting bolts are removed. G r a s p

the bottom of the lamphouse assembly firmly with one hand

and slide out the upper double strap nut with the other hand.

(13) With one hand, more the lamphouse assembly all the way to