TM-9-1240-400-34-P

TELESCOPE; PANORAMIC: M115, ELBOW: M139, MOUNT: M138 AND M137

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1993

TM-9-1240-400-34-P - Page 101 of 344

TM 9-1240-400-34&P

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

EYEPIECE ASSEMBLY

3.

EYEPIECE ASSEMBLY (2) HAS MOISTURE, FOREIGN MATTER, OR IS CHIPPED.

Observe visually.

a.

Purge.

Refer to TM 750-116.

b.

Disassemble, replace defective parts, clean, and reassemble.

Refer to page 3-12.

RETICLE CELL ASSEMBLY

4.

RETICLE CELL ASSEMBLY (3) HAS MOISTURE OR FOREIGN MATTER.

Observe visually.

a.

Purge.

Refer to TM 750-116.

b.

Disassemble, clean, and reassemble.

Refer to page 3-15.

5.

RETICLE CELL ASSEMBLY (3) DOES NOT ILLUMINATE.

Step 1.

Check that reticle cell assembly is positioned correctly.

Rotate until slot in cell is alined opposite window.

Step 2.

Check that reticle is positioned correctly in cell.

a.

Disassemble and clean.

Refer to page 3-15.

b.

Reassemble and correctly position reticle in cell.

Refer to page 3-7.

3-5