TM-10-5411-205-13 HMMWV S-250/G Shelter Operator, Unit and Direct Support Download
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TM 10-5411-205-13 3-9. General Repair Procedures (cont). (2) (b) (c) (d) (e) (f) (g) (h) (i) (j) Drill hole in structure. Remove all metal chips and remove burrs from drilled holes. If flush head rivet is being installed, countersink hole using a 100-degree or 120-degree machine countersink. Coat all rivet bodies with sealer (Item 28, Appendix D) before installing. Insert rivet in hole. Make sure sheets are held tightly together before upsetting or pulling rivet. Select proper pulling head for rivet being installed and install pulling head on rivet gun. Insert stem of rivet into pulling head. With pulling head parallel to axis of rivet, upset rivet. Exert firm pres- sure but do not bend or buckle metal sheets. Stem will break off below rivet head surface. No trimming should be required. Make sure riveted parts are not loose, rivet does not rotate, and rivet head is seated tightly against riveted surface. If rivet is loose or improperly installed, remove it and install a new one. Removal. (Figure 3-7) WARNING Drilling creates metal chips which may enter eyes and cause seri- ous injury. Eye protection is required. NOTE When drilling through rivet head, be careful to avoid enlarging hole in structure. Keep drill perpendicular to material being drilled and do not exert excessive pressure on drill, or replacement rivets will be too loose. DRILL PRY OFF THROUGH HEAD HEAD PUSH OUT SHANK Figure 3-7. Removing Blind Rivets, 3-15