T M 9 - 4 9 3 1 - 3 8 1 - 1 4 & P - 2
FRAME 28
Install Eyepiece, Adapter, and Graticule:
1.
2.
NOTE
lf lDU graticule (1) was removed,
7-33. lf adapter (2) was removed,
go to volume lll, figure
go to step 1. If only
eyepiece assembly (3) was removed, go to step 2.
Put adapter (2) onto housing (4) and screw in and tighten four socket head cap
screws (5) and new lockwashers (6) with key.
CAUTION
Eyepiece (3) is breakable. To avoid damaging eyepiece (3),
handle carefully.
Screw eyepiece (3) into adapter (2).
Follow-on Maintenance:
1. Install IDU assembly A2; refer to task 18.
2. InstalI thermal system test controller; refer to para. 2-5, task 8.
3. install thermal system test controller case cover; refer to volume 1, para. 4-18.
TASK 13 ENDS HERE
2-202
Volume IV
Para. 2-8, Task 13
