Figure 3-12. Seside simultaneously, pass the transverse lineover the next higher purlin, pull down totighten, and secure with a knot. Pass the se-curing strap across the arch, fasten the D-ringto the nearest J-hook, and tighten the strap byadjusting the buckle assembly (B, fig. 3-14).(7) Install additional intermediate sec-tions in a similar manner.d. End Section.(1) Follow the procedure outlined in b (1)through (5) above.(2) Secure transverse line and securingstrap as outlined in b (6) above.(3) Secure transom chord securing strapsas outlined in b (7) above.3-11. Vehicle Doorsa. Doorpost Installation. To install eitherdoorpost assembly, proceed as follows:Note. The door control arm of each assembly ismarked INSIDE FACE. These markings must faceeach other when the doorposts are erected.(1) Slide the end wall stiffener into itsreceiving channel in the doorpost (fig. 3-16).The stiffener is a manila rope sewn into theend wall hem of each tent end section. To in-stall the doorpost proceed as follows:(a) Lay the doorpost assembly on theground with the gusset at the top, facing anend arch.(b) Lift the gusset end of the doorpostto a point at which a lower corner of the endwall hem and stiffener can be fed into the chan-nel. Feed the stiffener into the channel to as-sure proper fit.(c) Raise the doorpost assembly to anupright position.(2) Use a ladder or other suitable deviceand secure the top of the doorpost assemblyto the moveable socket on the end arch, byusing the eyebolt and. eye pin and chain assem-blies.(3) Attach the diagonal door control armto the door control arm with the toggle pin andchain assembly (B, fig. 3-16).(4) Insert the door control arm (2, fig1-5) into the doorpost gusset (3). The arm3 - 1 3
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