MARINE CORPS TM 6115-34/8
2-4. GENERAL MAINTENANCE FOR DIRECT
SUPPORT, GENERAL SUPPORT AND DEPOT.
Tighten nut until lockwasher
This section provides general mainte-
Lockbolt Removal/Ins tallation.
To prevent injury, use cleaning
(1) Center punch head of lockbolt
fluid in a well-ventilated area.
breathing of vapor, and prolonged
(2) Use 3/16 inch drill bit and
or repeated contact with skin.
carefully drill into head of lockbolt
Use proper protective equipment.
(1) Remove damaged gasket.
(O-T-634) to thor-
approximately 2/3 of the way into the
oughly clean area.
the lockbolt pin should
It may be necessary to
(2) Measure and cut new gasket to
lightly tap out lockbolt collar.
(4) Ensure that hole is not
Remove any burrs.
side of new gasket and firmly press in
Trim to fit.
(5) Install new lockbolt pin in
(6) Place new collar on lockbolt
cedures for replacing engine housing
insulation are identical to those for
(7) Use a pneumatic puller with a
edges of the insulation material must
3/16 inch nose adapter. Pull on collar
be treated with edge sealer before
side of lockbolt pin until pin breaks
off even with collar.
duct insulation is covered in paragraph
Lockbolt Replacement. Lockbolts
can be replaced with a screw, washers,
Turnlock Faste ner Replacement.
This arrangement can be
(See figure 2-1.)
either temporary or permanent.
(1) Receptacle replacement.
(1) Remove lockbolt in accordance
with paragraph 2-4a, steps (1) through
(a) Hold receptacle with screw
(2) Place flat washer on #10
(b) Loosen and remove retaining
hexhead screw and insert in hole.