MALFUNCTION/SYMPTOM INDEX -820360080

TM 9-1240-375-34&P

0014 00

MALFUNCTION/SYMPTOM INDEX - Continued

Work Package

Malfunction/Symptom

BEARING HOUSING ASSEMBLY

1. Cross level vial or elevation level vial has no illumination (M171A1) .......................

2. Cross level vial or elevation level vial has uneven or no illumination (M171) ..........

3. Cross level vial or elevation level vial is cracked or bubble is elongated

and not illuminated (M171)...........................................................................................

4. Cross level vial or elevation level vial is cracked or bubble is elongated

but still illuminated (M171) ..........................................................................................

5. Optical instrument mirror does not clearly reflect images of cross level

vial and elevation level vial (M171) ..............................................................................

6. Optical instrument mirror does not clearly reflect images of cross level

vial and elevation level vial (M171A1) .........................................................................

OPTICAL INSTRUMENT SUPPORT

1. Optical instrument support does not seat M137/M137A2/M137A3

telescope correctly ..........................................................................................................

2. Thumbscrews do not secure M137/M137A2/M137A3 telescope correctly (M171) .....

3. Latches do not secure M137/M137A2/M137A3 telescope correctly (M171A1)...........

END OF WORK PACKAGE

0014 00-2