TM 1-1500-204-23-6Figure 2-64. Stud RemovalNOTEA drill jig recommended formoderate use when drillingbroken studs where it isimpractical to have a completeset of stud replacement jigs.Figure 2-65. Stud Installation(6)Drill a pilot hole in stud, using 1/8-inch diameterby 5-1/8 inch drill(7)If stud has a diameter of 7/16 inch or greater,enlarge pilot hole in stud using 1/4-inch diameter drill.(8)Redrill hole in stud, using proper drill for studsize.(9)Select proper removing tool for stud size(10)Drive removing tool into drilled hole in stud.(11)Remove stud, using tap wrenchFigure 2-65. Stud Installationb. InstallingNewStud. The procedures for retapping and installation are as follows.CAUTIONExcessive amounts of lubricants shall be avoided, especially in blindholes Use only sufficient lubricant to cover sides of threads with a thincoating Excessive lubricant can prevent proper stud installation.(1)When replacing a stud with another stud of the same size, run proper size tap into hole to cleanup threads without removing any metal.(2)When retapping for next oversize stud, use proper tap for die-cut studs. If stud cannot be drivenat torque specified in applicable aircraft maintenance manual, retap with tap for rolled thread studs of same size.NOTEUnless otherwise specified, antiseize compound MIL-T-83483 shall beapplied in tapped holes.(3)Select proper size stud and install with driver and remover, and collet and pin, as shown in figure 2-65(4)Use torque wrench to determine torque at required height of stud.2-55
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