nuckolls.bob(at)aeroelect
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 Posted: Wed Apr 15, 2015 10:26 am Post subject: Risks associated with unproven crimp tools . . . |
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At 07:05 2015-04-15, you wrote:
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In this and in similar threads, Bob N. has provided excellent
instructions on how to achieve gas tightness with wire terminals,
but I would like to add some additional info.
Some types of crimp tools press a single indentation into the barrel
of the wire terminal. This may not be ideal, but generally will
suffice; however there is one mistake very commonly made with this
type of tool. Most inexpensive wire terminals are formed from flat
material and have butted ends at the barrel (wire insertion
point). If the crimp tool applies an indentation over the barrel
butted ends, a poor termination is almost guaranteed.
If it is late evening and the only crimp tool that you have in your
toolbox presses a single indentation into the wire terminal, take a
close look at the terminal barrel to see if there is a seam (butted
ends). If there is a seam, apply the indentation on the opposite
side - not across the seam as in the illustration..., or use better
quality wire terminals formed from tubing without butted ends.
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Those poke-a-hole tools are for welded
wire-grip barrel terminals for SOLID wire.
If you don't have a PIDG style crimp tool to
effect independent wire and insulation
grips then solder the terminals on and
put some heat shrink on for insulation
support.
Bob . . .
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