THREADED INSERT REPLACEMENT
THIS WORK PACKAGE COVERS:
Removal, Cleaning, Inspection, Repair, and Installation
General mechanic’s tool kit (item 121, WP 0176)
Electric drill, portable (item 34, WP 0176)
Extractor tool (item 39 or 40, depending on insert
size, WP 0176)
Slimsert tool kit (item 122, WP 0176)
Thread die & tap set (item 120, WP 0176)
Expendable and Durable Items:
Cleaning solvent (item 8, WP 0173)
Goggles (item 23, WP 0173)
Lubricating oil (item 21, WP 0173)
Sealant compound (item 30, WP 0173)
Track Vehicle Repairer (1) 63H10
To permit higher stresses on studs and bolts that are set in aluminum castings, it is common
practice to install inserts of a stronger metal into which the studs or bolts are threaded.
Helical-coil and screw thread inserts are designated to perform this function.
family of engines incorporates helical-coil inserts in many locations as original equipment.
the hole in which the original insert is installed becomes oversize, a threaded insert may be
used in its place to allow the original size fastener to be used.
1. Verify type of insert.
a. If insert is swage type, go to step 2.
b. If insert is lock-ring type, go to step 4
2. Removal of swage type insert (1).
a. Using portable electric drill and
extractor tool (2), drill out top of
insert (1) to counterbore depth (A).
3. Remove insert (1).
a. Insert drive wrench (3) into insert (1).
b. Using ratchet handle and drive
wrench, unscrew insert (1).
c. Go to Cleaning.
WP 0030 00-1