TB 1-1520-238-20-134
7.4.2 Remove the pylons IAW the IETM.
7.4.3 Remove access covers RW7, RW8, 5RW14, 5RW15, LW7, LW8, 5LW14, and 5LW15.
7.4.4 For the right wing outboard pylon
7.4.4.1 Remove the four screws, washers and nuts used to attach connector 4J833 to the wing.
7.4.4.2 Remove the four screws, washers and nuts used to attach connector 4J894 to the wing.
7.4.4.3 If needed to assist in access to the barrel nuts remove the four screws, washers, and nuts used to
attach connector 4J831 to the wing.
7.4.4.4 Using a suitable tool, such as a scribe, remove barrel nuts and retainers. Carefully move discon-
nected components as required to assist in the access to the barrel nuts.
7.4.4.5 Install new barrel nuts and retainers in the support holes.
7.4.4.6 Reinstall connector 4J833, J894, and if removed, connector 4J831.
7.4.5 For the right wing inboard pylon
7.4.5.1 Remove the four screws, washers and nuts used to attach connector 3J833 to the wing.
7.4.5.2 Using a suitable tool, such as a scribe, remove barrel nuts and retainers. Carefully move discon-
nected components as required to assist in the access to the barrel nuts.
7.4.5.3 Install new barrel nuts and retainers in the support holes.
7.4.5.4 Reinstall connector 3J833.
7.4.6 For the left wing outboard pylon
7.4.6.1 Remove the four screws, washers and nuts used to attach connector 1J831 to the wing.
7.4.6.2 Remove the four screws, washers and nuts used to attach connector J893 to the wing.
7.4.6.3 If needed to assist in access to the barrel nuts remove the four screws, washers, and nuts used to
attach connector 1J833 to the wing.
7.4.6.4 Using a suitable tool, such as a scribe, remove barrel nuts and retainers. Carefully move discon-
nected components as required to assist in the access to the barrel nuts.
7.4.6.5 Install new barrel nuts and retainers in the support holes.
7.4.6.6 Reinstall connector 1J831, J893, and if removed, connector 1J833.
7.4.7 For the left wing inboard pylon
7.4.7.1 Remove the four screws, washers and nuts used to attach connector 2J831 to the wing.
7.4.7.2 Using a suitable tool, such as a scribe, remove barrel nuts and retainers. Carefully move discon-
nected compoents as required to assist in the access to the barrel nuts.
7.4.7.3 Install new barrel nuts and retainers in the support holes.
7.4.7.4 Reinstall connector 2J831.
7.4.8 Reinstall access covers RW7, RW8, 5RW14, 5RW15, LW7, LW8, 5LW14, and 5LW15.
NOTE
Ensure lubricate (MIL-T-83483) is applied to the bolt threads and the bolt
is torqued to 350 inch-pounds.
7.4.9 Reinstall the pylons IAW the IETM.
8. PROCEDURES/INSTRUCTIONS FOR ASSEMBLIES/COMPONENT/PARTS IN WORK OR IN STOCK
(AT ALL LEVELS INCLUDING WAR RESERVES) N/A.
9. SPECIAL TOOLS AND FIXTURES REQUIRED N/A.
10. SUPPLY/PARTS (REQUISITION/DISPOSITION)
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