TM-9-2350-311-34-1
HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-1 - 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
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