Crimp tool adjustment

No, never - because they're adjusted to a _size_ limit, not a _force_. This is usually pretty accurate though - it depends on the jaw stop butting before the ratchet releases. So long as the jaw is actually closing, then it would have to be a pretty crass manufacturing fault to cause trouble.

Blue crimps !

The problem with pre-insulated crimps is that you're trying to crimp _through_ a layer of squishy insulation. It's obviously convenient, but this just totally sucks as a way of making a reliable crimp. It's particularly a problem if you're gauging from a constant dimension, rather than a constant force.

If you can, use post-crimp insulated terminals, with a sleeve slipped on afterwards.

If you have to use pre-insulated, juggle brands until you find one that works with your wire diameter and your crimpers.

Obviously check the crimpers too for any visible problem or fault. Loose insulation or wire strands trapped in a jaw is the obvious one.

In message , Mike Clarke writes

The jaws close to a preset distance apart, the force (as long as it's sufficient to close the jaws .. for the pedants) is immaterial

That's the theory, but my TLC red/blue/yellow crimper does have an adjuster on it marker +/- and I had to slacken 1 notch as it just would not squeeze down that list click. Maybe there is a slight(?) tolerance in the thickness or material of auto grade crimps.

The TLC one also has a lever to release the ratchet should you be unable to complete the crimp-and-release action in one go.

Phil The uk.d-i-y FAQ is at

Or if you manage to crimp onto a fold of skin, or worse.....

Andrew

If you need help with those general DIY projects you can give me a call. More information about what I can help with can be found on my web site:

In message , Andrew McKay writes

While inserting your Albert ?

I guess they must make such large crimps, but somehow I don't think the crimp pliers have been invented yet :)

Andrew

If you need help with those general DIY projects you can give me a call. More information about what I can help with can be found on my web site:

RS have them - part number 549-628

Andrew, you need a sig separator

google is your buddy

Oh yeah.....sorry ;)

Andrew

... are the spawn of the devil ;-)

The only way to get a reliable crimp is where the arms of the lug fold over from a C shape into a B shape, but these cost more money and are less easy to find (anyone got one, and a source?).

I've got one for car etc 1/4" spade connectors. From Vehicle Wiring Products. Gives truly pro results.