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曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
1) Preparing for riveting The main elements which determine riveting quality are the following : a) Drillings - see Paragraph E. b) Counterbore if necessary. c) Deburr and clean the rivet hole. d) Determine the rivet length. Cutting to length of solid rivets should be made with an appropriate tool. The rivet should be cut at right angles. For solid rivets, the overlength of the unit to be riveted should be : L = dia. + 0.7 mm up to 4 dia. L = dia. + 1.2 mm from 5 to 8 dia. 2) Riveting with solid rivets a) AU2G rivets are used without quenching. b) AU4G rivets are used on freshly quenched parts. G. Repair of countersunk and unsettled rivets (Figure 201) 1) Replace countersunk rivets in all areas except the wing spar a) Rivet dia. 2.8 mm (0.110") TR F / 100 in sheet metal, thickness 0.8 mm (0.031"). Replace by rivet dia. 3.2 mm (0.126") TR F / 100. In theory, the head protrudes 0.4 mm (0.016"). b) Rivet dia. 3.2 mm (0.126") TR F / 100 in sheet metal, thickness 1 mm (0.039"). Replace by rivet dia. 3.6 mm (0.142") TR F / 100. In theory, the head protrudes 0.35 mm (0.014"). c) Rivet dia. 3.6 mm (0.142") TR F / 100 in sheet metal, thickness 1.2 mm (0.047"). Replace by rivet dia. 3.6 mm (0.142") F / 100. In theory, the head protrudes 0.2 mm (0.008"). WA Validity : S / N 1 - 9999 51 40 02Page 214 (BA) SEP 04 2) Rivets on the wing spar a) Ejection of existing rivets - Make a center point on the head of the rivet. - Using a drill, 2.4 mm (0.094") maximum, make a hole in the rivet at mid height. - Remove the head of the rivet with a drill having a diameter appropriate for the rivet. - Eject the rivet body with a pin drift inserted into the reduced diameter. b) Riveting repair : - Drill a hole to the dimension of repair : . dia. 3.2 mm (0.126") for 2.8 (0.110") . dia. 3.6 mm (0.142") for 3.2 (0.126") . dia. 4 mm (0.157") for 3.6 (0.142") (hole indicated for memory : L.H. rivets). - Clean the countersink. - Reset the rivets corresponding to their holes. - In the case of a sealed area, redo the tightness - see 28-10-00 Paragraph 6. Validity : S / N 1 - 9999 ,rA alidi 51 40-02Page 215 (BA) SEP 04 Pergage dia. 2,4 Drilling hole dia. 2.4 14516000AAAAVZ24100 Chasse-goupille dia. 2,4 Pin drift dia. 2.4 Validity : S/ N 1 - 9999 ia, Repair method of rivets |
