TM 10-1670-296-20&P                                                    0005 00 0005 00-6 Table 1.  Preventive Maintenance Checks and Services - continued B – Before D – During A – After INTERVAL ITEM NO. B D A ITEM TO BE CHECKED   OR SERVICED EQUIPMENT NOT READY/ AVAILABLE IF: 5 - continued 4.    Strike punch with a hammer to cause ³/₃₂-inch dimple and slight flow of metal towards the inside edge of the hole which will then retain the latch. 5.    Repeat the stacking at four places (90 degrees apart fro each latch pin). Re-check for loose pins as described above.    Check that the retainer hook releases when the latch assembly adapter is activated.    Inspect latch assembly and identify “dot and arrow” marking misalignment.  Ensure upper retainer nut is tight and flush with the latch assembly housing.    Manually operate the latch in accordance with FM 4.20-102 (10- 500-2)/TO 13C7-1-5.  Apply thumb pressure on the catch to overcome the spring pressure and lift up the catch.    Collapse the linkage manually by pushing down on top of retainer hook end.  Latch shall relock manually with dot and arrow aligned.   Refer to WP 0017 00. See previous page.