TM 55-8115-203-23 & P
Mark around the damaged area with chalk or scribe. Mark a rectangular, oval, or diamond shape
depending on the general shape of the damaged area. A rectangular shape will usually be easiest to
Direct oxygen-acetylene torch away from corner fittings, side and end rails, and side and end
panels to prevent damage to any of these parts.
(b) Tack weld guide bars in place to ensure straight cuts with an oxygen acetylene torch. Even,
accurate cutting will eliminate wide gaps between the J-bar and the new insert.
(c) Cut out the damaged area with an oxygen acetylene torch.
(d) Grind smooth all cut edges.
(a) Using guide bars, cut a replacement insert to the exact shape of the damaged area.
(b) Grind smooth cut edges of insert.
Fit and weld insert in place.
Fit insert in place. Insert should be flush against the J-bar edges on all sides.
(b) Bevel edges of the insert and J-bar cutout area to a thirty degree angle. See Figure 3-6.
(c) Tack weld insert in place.
(d) Continuously weld insert to J-bar.
Replacement of J-bar.
Remove door from container following procedure 2-7.
Cut J-bar from corner post and corner fitting with oxygen-acetylene torch.
Grind smooth edges on corner post and corner fitting. Remove all excess weld metal.
Check replacement J-bar for exact fit. Cut or grind to proper size if necessary.
Bevel the edges of the replacement J-bar to thirty degrees with grinder to ensure full weld penetration.
Tack weld the replacement J-bar in place. Fit door in place, check for proper alignment. Reposition the J-
bar if necessary. Remove door.