TM-9-1290-262-24&P Technical Manual for M2A2 Aiming Circle Download
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ARMY TM 9-1290-262-24&P MARINE CORPS TM 00476C-24&P AIR FORCE TO 49A7-3-72/74 Table 4-1. GENERAL SUPPORT TROUBLESHOOTING (cont) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 2. PARALLAX PRESENT IN OPTICAL SYSTEM. Check objective cell assembly adjustment. Adjust objective cell assembly. Refer to page 4-12. 3. TELESCOPE RETICLE HAS POOR DEFINITION. Step 1. Check setting of eyepiece assembly focus. Adjust eyepiece assembly focus. Refer to page 4-16. Step 2. Inspect eyepiece assembly for defects. Repair eyepiece assembly. Refer to page 4-5. Step 3. Check reticle assembly for incorrect installation. Install reticle assembly correctly. Refer to page 4-5. 4. IMAGE IS POORLY DEFINED. Step 1. Check for faulty objective cell assembly lenses. Repair objective cell assembly. Refer to page 4-12. Step 2. Check eyepiece assembly focus. Adjust eyepiece assembly focus. Refer to page 4-16. Step 3. Check optical cell assembly for parallax. Adjust optical cell assembly. Refer to page 4-16. Step 4. Check optical instrument prism for defects. Replace optical instrument prism. Refer to page 4-5. Step 5. Recheck image definition. If image is still poorly defined, replace M2A2 aiming circle. 4-3