CARGO BODY REPAIR (Cont).f
REPAIR BY PATCHING
Most body panel damage that exceeds the limits of negligible damage may be repaired by patching. This
procedure involves removal of damaged area (1) and application of a patch (2) to cover the area. The damaged
area is prepared by removal of the damage by rounding or smoothing of all corners and edges. This helps assure
that cracks will not spread into undamaged areas.
In the case of a large crack (4), it may be desirable to stop drill the crack rather than cut out a portion of the panel
(5) or structural member. Repair is completed by applying a large overlapping patch (3) over the area that was
damaged. The overlap must be sufficient to allow the observance of proper rivet edge distance (6). Large areas
of damage are best repaired using a patch that is attached with multiple rows of rivets.