TM-9-1290-262-24-P
AIMING CIRCLE, M2A2, W/E
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT,AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-1290-262-24-P - Page 33 of 192
ARMY TM 9-1290-262-24&P
MARINE CORPS TM 00476C-24&P
AIR FORCE TO 49A7-3-72/74
MALFUNCTION
TEST OR lNSPECTION
CORRECTIVE ACTION
Step 2. Check for stripped threads on screws and in adapter.
a. Replace screws or adapter. Refer to pages 3-12.
b. Adjust micrometer scale dial. Refer to page 3-12.
10. AZIMUTH THROWOUT MECHANISM BINDS.
Step 1. Check for burrs on index scale dial or on bearing surface on housing. Refer to
page 3-12.
Remove burrs. Refer to TM 9-254.
Step 2. Check for bent worm shaft.
Replace worm shaft. Refer to page 3-12.
Step 3. Check for binding in azimuth knob throwout mechanism.
a. Replace adapter or worm shaft. Refer to page 3-12.
b. If binding is still present, notify general support maintenance.
11. ORIENTATION THROWOUT MECHANISM BINDS.
Step 1. Check for burrs on shoe or on bearing surface on housing.
Remove burrs. Refer to TM 9-254.
Step 2. Check for bent worm shaft.
Replace worm shaft. Refer to page 3-12.
Step 3. Check for binding in orienting knob.
a. Replace shoe or worm shaft. Refer to page 3-12.
b. If binding is still present, notify general support maintenance.
3-5
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