TM-9-2350-311-34-2
CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-2 - Page 74 of 552
TM 9-2350-311-34-2
2-10
REPAIR OR REPLACEMENT OF PARTS - CONTINUED
2-10.3 Repairing Damaged Threads
a.
When determined feasible by inspection, damaged threads should be repaired by retapping, use of thread die, or by
chasing on lathe.
b.
Tapped holes for screw thread inserts that have mutilated threads may be repaired by:
1
Drilling and tapping hole oversize and installing larger inserts.
2
Filling tapped hole by welding, redrilling, and tapping hole to original size.
2-11
REMOVAL AND INSTALLATION OF SCREW THREAD INSERTS (ONE-PIECE TYPE)
This task covers:
a. Removal
b. Installation
INTIAL SETUP
Tools
Artillery field maintenance tool kit
(SC 4933-95-CL-A06)
a. Removal
1
Drill thread insert. Refer to table on following page for drill size and depth.
2
Deflect keys inward and break off.
3
Remove remainder of thread insert with screw extractor.
2-12
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