CAB BODY REPAIR (CONT)
Repair by Patching
Most body panel damage that exceeds 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 (1). The
damaged area is prepared by removal of the damage folIowed by rounding or smoothing of all corners and
edges. this helps ensure that cracks will not spread into undamaged areas. In the case of a large crack (4),
it may be desirable to stop-drill crack (4) rather than cut out a portion of a 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) (refer to rivet patterns, above).
large areas of damage are best repaired using a patch that is attached with multiple rows of rivets (refer to
rivet patterns, above).