TM-9-2350-311-34-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 37 of 352
TM 9-2350-311-34-1 TABLE 2-1 THREAD INSERTS: DRILL SIZE AND DEPTH THREAD INSERT REMOVAL DRILL INTERNAL EXTERNAL TAP DRILL COUNTERSINK THREAD THREAD DIAMETER DIAMETER DIAMETER DRILLING DEPTH 10-24 3/8-1 6 Q 0.391 in. 0.281 in. 0.25 in. 10-32 0.332 in. 1/4-20 7/1 6-14 x 0.453 in. 0.344 in. 0.25 in. 1/4-28 0.397 in. 5/16-18 1/2-13 0.453 in. 0.516 in. 0.406 in. 0.25 in. 5/1 6-24 3/8-16 9/16-1 2 0.516 in. 0.578 in. 0.469 in. 0.25 in. 3/8-24 7/1 6-14 5/8-I 1 0.578 in. 0.641 in. 0.531 in. 0.25 in. 7/1 6-20 1/2-13 11/16 0.641 in. 0.703 in. 0.534 in. 0.25 in. 1/2-20 2-10 WELDING For welding instructions and welding materials, refer to TC 9-237. 2-11 ELECTRICAL TEST EQUIPMENT AND ELECTRICAL TESTING To use electrical test equipment and for electrical testing, refer to TM 9-2350-311 -20-1. 2-12 SHAFTS, GEARS, AND BEARINGS Gears, bearings, sleeves, and other components may be installed on the shafts as tight fits. The use of an arbor press, gear pullers, or other appropriate tools for removal and installation maybe required. SECTION Ill. CLEANING, PAINTING, AND LUBRICATION 2-13 CLEANING Refer to TM 9-247 for instruction on cleaning and for necessary cleaning materials. Also refer to TM 9-2350-311 -10 and TM 9-2350-311-20-1 for specific areas to be cleaned. 2-5