Figure 1-6. DoorFigure 1-5--(2) The short (4-ft) purlins (2) connectan intermediate arch to an end arch. The studend of the purlin is connected to the intermedi-ate arch; the insert end to the captive hexbolt of the end arch. The basis of issue forthese purlins is 13 per end section.(3) ‘l’he short (4-ft) purlins (3), bothends of which have flanges with inserts, con-nect the opposite end arch to the intermediatearch. The basis of issue for these purl ins isalso 13 per end section.(4) The end arch purlins assemblies (4)connect the end arches to the door post assem-blies (fig. 1-5. Both ends of these purlnshave flangeswith inserts. One end is connectedto the captive hex bolt on the door post. Theouter end receives the adjustment shaft andclvis assembly (5, fig. 1-4) that permits thedoor post to be adjusted to the proper width.d. Doorpost Assemblies. The doorpost assem.blies (fig. 1-5) form the frame for the vehicledoors and assist in opening and closing them.A right hand and left hand assembly is issuedwith an end section.(1) The top of each doorpost assemblyis connected to a movable socket on the endarch by means of an eyebolt and an eye pin.and chain assembly. The bottom of each door.post assembly is connected to the end archby means of au end arch purlin and an ad-justment shaft and clevis assembly.(2) The doorpost top assembly (7), whenclosed, is locked to the stationary post assembly(14) by means of the chain bolt (8) andstrike plate (6). When opened, it pivots upwardand outward with the raised vehicle door toprovide the clearance necessary to bring equip-ment, into the tent. It is opened by releasing1-7
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