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TB 9-2510-242-40
according to the requirements of drawing No. 19207-12355846-400.
(7) Re-galvanize Repairs. Apply cold galvanization spray to previously galvanized surfaces that have been
repaired.
b. Segment Replacement. When segments can be replaced without the removal of a frame member, use the
following procedure:
(1) Remove Structural Load. The first step to remove a frame member's segments to remove the structural
load from the member.  Use jack stands or other cribbing to safely support all attachment points of the damaged
segment and the remaining segment. Also place supports at other points to ensure that the frame and its members
cannot move with removal of the damaged segment.
(2) Remove Damaged Segment. Cut and remove the damaged segment and old weld material from all welds
holding it. Use a portable grinder of suitable size. Avoid application of excessive heat to the remaining frame members
and segments.
(3) Realign Remaining Portions of Frame Members. Align the remaining frame members and segments to
their original correct positions. Some member repairs may be necessary before proper alignment can be obtained.
(4) Fabricate Segment and Reinforcement Plates. Fabricate the replacement segment to match its frame
member's design. The member's length can be easily determined by measuring similar members. Segment material
shall be the same as the original member (see appendix A and appendix B). Design and fabricate reinforcement plates.
Reinforcement plates shall be of the same material and have a thickness the same to 1-1/4 times that of the member.
Typical plate designs are shown in figures C-6 and C-7.
(5) Install Segment and Reinforcement. Clamp the replacement segment in position and weld using the skip-
weld procedure specified in paragraph 5-1d. The weld joint connecting the new segment to the existing segment shall be
a full depth groove weld, ground flush with the parent metal's surfaces so that the reinforcing plates will fit flush on top of
the welded member's segments.
(6) Treat/Paint Repair. Treat and paint replacement segment, welds, and reinforcement plates according to the
requirements of drawing No. 19207-12355846-400 (see appendix C).
5-5 Repairing Deterioration Caused by Corrosion
a. Detection and Degree of Deterioration. Deterioration corrosion of the metal frame structure is probably the
most common, single defect in any frame. It can be the result of any single cause or a combination of causes such as
age, inadequate maintenance, excessive working
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