TM 55-8115-203-23 & P
(a) Tack weld J-bar and door in place. Check for proper door clearances. Reposition if necessary.
(b) Continuously weld J-bar in place.
Paint replacement post and welded area according to paragraph 2-4.
Replacement of parts after rear corner post replacement only. Replace plywood liners according to
Replace floorboards (after front or rear corner post replacement), according to paragraph 2-10.
3-4. J-bar Repair.
Direct oxygen acetylene torch away from corner castings, side and end rails, and side and end
panels to prevent damage to any of these parts.
a. Repair of small cracks and tears. Small cracks and tears less than two inches in length should be filled with weld
metal. Any dents or distortions should be straightened before welding.
Carefully smooth ragged edges of tear with file or hammer before welding.
Grind along length of crack. Grind crack to depth of 3/16 in. (5 mm) to ensure full weld penetration.
Continuously weld along length of crack.
Paint according to paragraph 2-4.
Inserting. If the damaged J-bar cannot be repaired by gouging and welding, the J-bar may be repaired by
inserting. The minimum length of J-bar inserts is three inches. Restrictions for corner post inserts do not apply
All patches, inserts, sections and replacements for panels, rails and crossmembers should be
steel conforming to the AISI-409 standard. AISI stands for the American Iron and Steel
Institute. This steel is corrosion resistant and has a minimum tensile strength of 65KSI
(thousand pounds per square inch).
Remove damaged portion of the J-bar and prepare for inserting.