FRAME (TRAILER) MAINTENANCE (MODEL WPES-I) - continued.
If possible, chase threads with used tap or die. New tap may cut oversize, while
new die may cut undersize.
Replace all parts that have stripped threads. Replace parts that cannot be repaired by chasing threads with
used tap or die. Replace parts that cannot be repaired by installing helical coil inserts.
Remove tight broken studs or screws as follows:
Center punch broken stud or screw.
Drill three quarters way deep into broken stud or screw using a drill bit 1116 inch less the diameter of
stud or screw.
Using a screw extractor, remove broken stud or screw.
Remove studs or screws that have not broken flush to surface as follows:
Clamp broken stud or screw using vise grip pliers.
Back out broken stud or screw