TASK 70-13-00-390-001
1 . General.
A.Rivets are used primarily as shear fasteners in semi-permanent or permanently fastened assemblies. They are used when warpage of mating parts due to application of heat during heat treatment, welding or brazing is undesirable or where light-weight, low-profile and low-cost shear fasteners are desired.
B.Sheet metal joints secured by rivets must be made in such a way that neither the metal nor the rivets are deformed beyond accepted or dimensional limits. Rivets must be set with the manufactured head snugly against the material surface, and the adjacent surfaces of the material in firm contact with each other before the driven head is formed. Burrs created when the installation hole is being drilled shall be removed prior to insertion of the rivet.
WARNING:
ACETONE C04-003   AND ISOPROPYL ALCOHOL C04-035   ARE FLAMMABLE. DO NOT USE NEAR WELDING AREAS, NEAR OPEN FLAMES OR ON VERY HOT SURFACES. USE ONLY WITH ADEQUATE VENTILATION. AVOID PROLONGED OR REPEATED CONTACT WITH SKIN. STORE IN APPROVED SAFETY CONTAINER.
C.All aluminum fasteners or steel fasteners in aluminum material will be installed with wet zinc chromate primer C03-001   or epoxy resin primer C03-002   or C03-005  . If contaminate is present in the hole it shall be cleaned with Acetone C04-003   or Isopropyl Alcohol C04-035   and dried.
2 . Rivet Types.
Subtask 70-13-00-390-011
A.Rivets used on jet engines are generally classified into the following categories:
(1)Formed rivets.
(2)Hi-Shear rivets.
(3)Blind rivets.
3 . Rivet Removal.
Subtask 70-13-00-390-012
A.Use care in disassembly, particularly with rivet removal, to avoid damage to base structure. Unless otherwise specified in the repair procedure, rivets must be drilled out, but care must be exercised with each rivet removed. Select drill size consistent with rivet diameter. Use caution to avoid oversize of the rivet hole. Rivet should be center-punched for start of drilling.