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part or in whole without the express written permission of the company. Perfect Point logo, Perfect Point
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and E-Drill
®
are
trademarks of PPedm, Corp. US and worldwide patents pending.
CAUTION
When removing Flush Fasteners from COMPOSITE structure, the Vacuum Flush
Head Locator (VFHL) product is strongly recommended. Please visit
WWW.PPEDM.COM or contact your e-drill representative for details.
2.6
Removal of Fastener Collars:
For fastener collars the greatest challenges are cleaning the relevant parts of the
fastener to ensure good electrical contact. Specifically, remove the paint and sealants
from around the collar so that the electrode can make contact. An EG hand-tool is
recommended for collar removal, but if using a CG Hand Tool, for fasteners such as
stump-type Hi-Lok’s which have a hexagonal hole in the shank, remove paint or debris
from inside the hex hole so that the Ground Pin may make contact. When maintaining
in-service aircraft, it is recommended that these tasks are easiest achieved with an
angle grinder and small drill, as shown below.
A)
Configure the hand-tool with an adapter for removal of the relevant collar
and select the correct collar removal operation from the library on the
Touch-Screen Display interface. Please note that some Huck Lockbolt
collars are typically much longer than other collar types, so there is a
special menu option specifically for long Huck Lockbolts.
B)
Using an angle-grinder, and the relevant personal safety equipment, remove
the entire protrusion of the stem through the collar, thus ensuring a clean
surface.
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