General Repair Procedures (cont) - TM-10-5411-205-13

General Repair Procedures (cont) - TM-10-5411-205-13_32

TM-10-5411-205-13 Shelter Electrical Equipment S-250/G (Unshielded) (NSN 5411-00-999-4935) (Shielded) (NSN 5411-00-189-6076) Manual
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TM 10-5411-205-13 3-9. General Repair Procedures (cont). (a) Drill through head of rivet only, using hole in rivet as a guide. Use proper drill size as follows: Rivet Size (in.) Drill size 1 /8 No. 30 5/32 No. 20 3/16 No. 11 1 / 4 1/4 inch (b) Using a pin punch, pry off rivet head. CAUTION Do not punch rivet shanks out as you may damage the other side of the panel. (c) Using pin punch, push out remainder of rivet shank. If shank will not push out easily, drill it out. b. Rivnut Installation and Removal. Rivnuts (threaded inserts) are tubular rivets with internal threads and are used throughout the shelter wherever blind threads are required. The types of rivnuts used in the shelter are shown in Figure 3-8 and described in Table 3-3. Flat head rivnuts (style D and E) may be used wherever head thickness will not interfere with installation of equipment. Countersunk head rivnuts (style C) are used for flush installation. Keyed rivnuts are used in locations which are subject to vibration and torque. Closed end rivnuts (styles C and E) must be used for all interior or exterior repairs to keep moisture and dirt from entering panels. Open end rivnuts (style D) maybe used only where rivnut to be replaced is open end and not subject to water penetration. Figure 3-8. Rivnuts (Threaded Inserts). 3-16 Change 1

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