TM 1-1500-204-23-11
Figure 7-19. Hi-Lok Removal
(1) Removal of Hi-Lok Fasteners. Hi-Loks
(b) Secure pliers around the collar.
should be removed using special tools for fastening
removal. (See igure 7-19 , View A) A chisel and
(c) While holding the hex Allen wrench sta-
hammer are not acceptable tools for Hi-Loks fastener
tionary, rotate the pliers counterclock-
removal. Perform the following steps to remove
wise to loosen the collar.
Hi-Lok fasteners.
(3) Removal of blind fasteners. Blind fasten-
(a) Match the size of the HLH128 collar
ers may be removed with common composite hand
removal tool with the size of the collar
tools if a fastener removal kit is unavailable. How-
being removed.
ever, extreme care must be taken not to damage the
laminate surrounding the fastener hole. If a fastener
(b) Place the tool over the collar until it bot-
removal kit is not used, the fastener hole must be
toms on the structure.
inspected for damage. If damage is detected, a fas-
tener hole repair must be performed per paragraph
7-9 or the next larger sized fastener must be installed.
(c) Rotate the cam jaw until the serrations
grip the collar base.
(a) Perform the following steps to remove
tightly clamped blind fasteners. Refer to
(d) Connect an appropriate lexible handle
and extension to the collar removal tool.
Select a drill with a motor that does
1
(e) Insert a hex Allen wrench of the proper
not turn over 500 rpm.
size in the hex recess the threaded end
of the pin.
Determine the pilot and shank drill
2
bits required that corresponds to
(f)
Rotate the handle and tool counter-
the size of blind fasteners being
clockwise until the collar is loosened.
removed. Carbide drill bits must
be used to remove titanium or steel
(2) Common Hand Tooling. Perform the fol-
fasteners from table 7-4.
lowing steps to remove Hi-Lok fasteners using com-
mon hand tools. (See igure 7-19, View B).
(a) Insert a hex Allen wrench of the proper
size in the hex recess in the threaded
end of the pin.
