TM 9-2320-209-34-2-2 c. Cleaning. There are no special cleaning procedures required. Refer to cleaning procedures given in Part 1, para 1-3. d. Inspection and Repair. FRAME 1 1. Check that screen (1) has no holes or bent wires. If screen is damaged, patch with piece of screen at least two inches larger than damaged spot. 2. Check that blackout panel (2) and two guides (3) are not bent, cracked or damaged. Fix damaged parts by welding or get new parts in their place. 3. Check that window (4) is not damaged. If parts are damaged, get new ones in their place. END OF TASK 17-413