MALFUNCTION/SYMPTOM INDEX -820360062

TM 9-1240-375-34&P

0008 00

MALFUNCTION/SYMPTOM INDEX - Continued

Malfunction/Symptom

Work Package

CORRECTION KNOB ASSEMBLY (M17/M17A1/M18/M18A1)

1. Correction knob binds ....................................................................................................

COUNTER ASSEMBLY (M17/M17A1/M18/M18A1)

1. Correction counter fails to allow +95 to +99 mils max or -95 to -99 mils max...........

2. Counter numbers are not in horizontal alignment ......................................................

3. Elevation counter fails to allow 1433 or 9720 mils ......................................................

COVER ASSEMBLY (M17/M17A1/M18/M18A1)

1. Counter windows are fogged or have condensation.....................................................

FIRE CONTROL LEVEL ASSEMBLIES (M17/M18)

1. Bubble in elevation level vial is not level .....................................................................

2. Bubble in elevation level vial is not synchronized with M198 howitzer tube............

3. Elevation level vial and cross level vial have no bubble and are not illuminated.....

4. Elevation level vial and cross level vial have no bubble, but are still illuminated ...

5. Elevation level vial, cross level vial, and counter dials have uneven

or no illumination...........................................................................................................

WORM SHAFT ASSEMBLY (M17/M17A1/M18/M18A1)

1. Elevation knob exceeds 0.7-mil backlash .....................................................................

END OF WORK PACKAGE

0008 00-2