ARMY TM 10–8340-224–13AIR FORCE TO 35E5-6-1NAVY NAVFAC–P-337.ANOTEEnsure arches are parallel.(3)Install purlin (1) at ridge.(4)(5)(6)(7)Identify end fitting (6) on each end of purlin (1).Fit end fitting (6) in each arch assembly boss (7)simultaneously.Rotate purlin (1) 90° so that end fittings (6) lockinto boss (7) at each arch assembly (5).Unfasten retaining strap (8) and rotate a purlindiagonal brace (9) toward arch assembly (5).2-21
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